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LT1171IQ#TR

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Datasheet
Switching Voltage Regulators LT1171 - 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators
Manufacturer: Analog Devices



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1500 - Global Stock
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Wed. 21 Apr to Tue. 27 Apr

MOQ: 750 Multiples:750
Pack Size :   750
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1500 - Global Stock


Ships to you between Wed. 21 Apr to Tue. 27 Apr

MOQ : 750
Multiples : 750

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LT1171IQ#TR
Analog Devices

750 : $ 22.5
751 : $ 16.2

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Manufacturer
Analog Devices
Product Category
Switching Voltage Regulators
RoHS - XON
N Icon ROHS
Mounting Style
Smd/Smt
Number of Outputs
1 Output
Input Voltage MAX
40 V
Input Voltage MIN
3 V
Series
Lt1171
Height
4.57 mm
Package / Case
DDPAK-5
Brand
Analog Devices / Linear Technology
Hts Code
8542390001
Operating Supply Current
6 mA
Product Type
Switching Voltage Regulators
Subcategory
Pmic - Power Management Ics
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Mfr. Part No.
Description
Stock
Switching Voltage Regulators 100kHz 5A 2.5A and 1.25A High Efficiency Switching Regulator
3
Switching Voltage Regulators Hi Volt 1.25A Pwr Sw Reg 100kHz
20
Switching Voltage Regulators 1.25A Pwr Sw Reg 100kHz
1761
Switching Voltage Regulators 1.25A Pwr Sw Reg 100kHz
112
Switching Voltage Regulators 2.5A Power Switch Reg 100kHz
97
Switching Voltage Regulators 1.25A Pwr Sw Reg 100kHz
37
Switching Voltage Regulators 1.25A Pwr Sw Reg 100kHz
31
Switching Voltage Regulators Hi Volt 1.25A Pwr Sw Reg 100kHz
211
Image
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Description
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LT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Fea T Descrip T ? n Wide Input Voltage Range: 3V to 60V The LT 1170/LT1171/LT1172 are monolithic high power- n switching regulators. They can be operated in all standard Low Quiescent Current: 6mA n switching configurations including buck, boost, flyback, Internal 5A Switch forward, inverting and ?Cuk.? A high current, high efficiency (2.5A for LT1171, 1.25A for LT1172) n switch is included on the die along with all oscillator, con- Shutdown Mode Draws Only 50?A Supply Current n trol and protection circuitry. Integration of all functions Very Few External Parts Required n allows the LT1170/LT1171/LT1172 to be built in a standard Self-Protected Against Overloads n 5-pin TO-3 or TO-220 power package as well as the 8-pin Operates in Nearly All Switching Topologies n packages (LT1172). This makes them extremely easy to Flyback-Regulated Mode Has Fully Floating Outputs n use and provides ?bust proof? operation similar to that Comes in Standard 5-Pin Packages n obtained with 3-pin linear regulators. LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages The LT1170/LT1171/LT1172 operate with supply voltages n Can Be Externally Synchronized from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no exter- a T nal power devices. By utilizing current-mode switching n techniques, they provide excellent AC and DC load and Logic Supply 5V at 10A n line regulation. 5V Logic to ?15V Op Amp Supply n Battery Upconverter The LT1170/LT1171/LT1172 have many unique features not n Power Inverter (+ to ?) or (? to +) found even on the vastly more difficult to use low power n Fully Floating Multiple Outputs control chips presently available. They use adaptive antisat USER NOTE: switch drive to allow very wide ranging load currents with This data sheet is only intended to provide specifications, graphs, and a general functional no loss in efficiency. An externally activated shutdown description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in mode reduces total supply current to 50?A typically for developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values standby operation. of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in L, LT, LTC, LTM, Linear Technology, the Linear logo are registered trademarks of Linear the higher frequency. A CAD design program called SwitcherCAD is also available. Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Boost Converter (5V to 12V) Maximum Output Power* 100 * ROUGH GUIDE ONLY. BUCK MODE L1** 5V L2 OUTPUT LT1170 P = (5A)(V ) 50?H OUT OUT 10?H FILTER SPECIAL TOPOLOGIES DELIVER 80 MORE POWER. C3 ** DIVIDE VERTICAL POWER SCALE 100?F D1 BUCK-BOOST BY TWO FOR LT1171, BY FOUR V MBR330 V = 30V FOR LT1172. IN O 60 12V V BOOST SW LT1170/1/2 TA02 1A FLYBACK + R1 C2 LT1170 10.7k 40 + 1000?F 1% C3* 100?F FB 20 V GND C BUCK-BOOST R2 R3 V = 5V 1.24k O 1k 1% 0 C1 0 10 20 30 40 50 1?F INPUT VOLTAGE (V) *REQUIRED IF INPUT LEADS ? 2" ** COILTRONICS 50-2-52 1170/1/2 TA01 PULSE ENGINEERING 92114 117012fi 1 For more information www.linear.com/LT1170 POWER (W) ** ion pplica ions pplica ion uresLT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Fea T Descrip T ? n Wide Input Voltage Range: 3V to 60V The LT 1170/LT1171/LT1172 are monolithic high power- n switching regulators. They can be operated in all standard Low Quiescent Current: 6mA n switching configurations including buck, boost, flyback, Internal 5A Switch forward, inverting and ?Cuk.? A high current, high efficiency (2.5A for LT1171, 1.25A for LT1172) n switch is included on the die along with all oscillator, con- Shutdown Mode Draws Only 50?A Supply Current n trol and protection circuitry. Integration of all functions Very Few External Parts Required n allows the LT1170/LT1171/LT1172 to be built in a standard Self-Protected Against Overloads n 5-pin TO-3 or TO-220 power package as well as the 8-pin Operates in Nearly All Switching Topologies n packages (LT1172). This makes them extremely easy to Flyback-Regulated Mode Has Fully Floating Outputs n use and provides ?bust proof? operation similar to that Comes in Standard 5-Pin Packages n obtained with 3-pin linear regulators. LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages The LT1170/LT1171/LT1172 operate with supply voltages n Can Be Externally Synchronized from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no exter- a T nal power devices. By utilizing current-mode switching n techniques, they provide excellent AC and DC load and Logic Supply 5V at 10A n line regulation. 5V Logic to ?15V Op Amp Supply n Battery Upconverter The LT1170/LT1171/LT1172 have many unique features not n Power Inverter (+ to ?) or (? to +) found even on the vastly more difficult to use low power n Fully Floating Multiple Outputs control chips presently available. They use adaptive antisat USER NOTE: switch drive to allow very wide ranging load currents with This data sheet is only intended to provide specifications, graphs, and a general functional no loss in efficiency. An externally activated shutdown description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in mode reduces total supply current to 50?A typically for developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values standby operation. of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in L, LT, LTC, LTM, Linear Technology, the Linear logo are registered trademarks of Linear the higher frequency. A CAD design program called SwitcherCAD is also available. Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Boost Converter (5V to 12V) Maximum Output Power* 100 * ROUGH GUIDE ONLY. BUCK MODE L1** 5V L2 OUTPUT LT1170 P = (5A)(V ) 50?H OUT OUT 10?H FILTER SPECIAL TOPOLOGIES DELIVER 80 MORE POWER. C3 ** DIVIDE VERTICAL POWER SCALE 100?F D1 BUCK-BOOST BY TWO FOR LT1171, BY FOUR V MBR330 V = 30V FOR LT1172. IN O 60 12V V BOOST SW LT1170/1/2 TA02 1A FLYBACK + R1 C2 LT1170 10.7k 40 + 1000?F 1% C3* 100?F FB 20 V GND C BUCK-BOOST R2 R3 V = 5V 1.24k O 1k 1% 0 C1 0 10 20 30 40 50 1?F INPUT VOLTAGE (V) *REQUIRED IF INPUT LEADS = 2" ** COILTRONICS 50-2-52 1170/1/2 TA01 PULSE ENGINEERING 92114 117012fi 1 For more information www.linear.com/LT1170 POWER (W) ** ion pplica ions pplica ion uresLT1170/LT1171/LT1172 (Note 1) a Te Maxi Mu M r a T Supply Voltage Operating Junction Temperature Range LT1170/LT1171/LT1172HV (Note 2) .......................60V LT1170M/LT1171M (OBSOLETE) ....... ?55?C to 150?C LT1170/LT1171/LT1172 (Note 2) ............................40V LT1172M (OBSOLETE) ....................... ?55?C to 125?C Switch Output Voltage LT1170/LT1171/LT1172HVC, LT1170/LT1171/LT1172HV .....................................75V LT1170/LT1171/LT1172C (Oper.) ............. 0?C to 100?C LT1170/LT1171/LT1172 .........................................65V LT1170/LT1171/LT1172HVC LT1172S8 ..............................................................60V LT1170/LT1171/LT1172C (Sh. Ckt.) ........ 0?C to 125?C Feedback Pin Voltage (Transient, 1ms) ................... ?15V LT1170/LT1171/LT1172HVI, Storage Temperature Range .................. ?65?C to 150?C LT1170/LT1171/LT1172I (Oper.) .......... ?40?C to 100?C Lead Temperature (Soldering, 10 sec ....................300?C LT1170/LT1171/LT1172HVI, LT1170/LT1171/LT1172I (Sh. Ckt.) ...... ?40?C to 125?C p in c F T BOTTOM VIEW V V TOP VIEW TOP VIEW SW C 1 GND 1 8 E2 GND 1 8 E2 2 CASE 3 IS GND 4 V 2 7 V V 2 7 V C SW C SW FB 3 E1 FB 3 E1 V 6 6 IN FB K PACKAGE NC* 4 5 V NC* 4 5 V IN IN 4-LEAD TO-3 METAL CAN LT1170MK: T = 150?C, ? = 2?C/W, ? = 35?C/W N8 PACKAGE S8 PACKAGE J8 PACKAGE JMAX JC JA LT1170CK: T = 100?C, ? = 2?C/W, ? = 35?C/W 8-LEAD PDIP 8-LEAD PLASTIC SO 8-LEAD CERDIP JMAX JC JA LT1171MK: T = 150?C, ? = 4?C/W, ? = 35?C/W JMAX JC JA T = 100?C, ? = 100?C/W (N) T = 125?C, ? = 100?C/W JMAX JA JMAX JA LT1171CK: T = 100?C, ? = 4?C/W, ? = 35?C/W JMAX JC JA T = 100?C, ? = 120?C/W to 150?C/W JMAX JA LT1172MK: T = 150?C, ? = 8?C/W, ? = 35?C/W JMAX JC JA depending on board layout (S) * Do not connect Pin 4 of the LT1172 DIP or SO to external LT1172CK: T = 100?C, ? = 8?C/W, ? = 35?C/W JMAX JC JA circuitry. This pin may be active in future revisions. Based on continuous operation. * Do not connect Pin 4 of the LT1172 DIP or SO to external T = 125?C for intermittent fault conditions. JMAX OBSOLETE circuitry. This pin may be active in future revisions. OBSOLETE TOP VIEW TAB IS NC 1 16 NC FRONT VIEW FRONT VIEW GND NC 2 15 NC 5 V IN 5 V IN 4 V SW GND 3 14 E2 TAB IS 4 V SW 3 GND GND V 4 13 V C SW 3 GND 2 FB 1 V FB 5 12 E1 C 2 FB NC 6 11 V 1 V Q PACKAGE IN C 5-LEAD DD NC 7 10 NC T PACKAGE T = 100?C, ? = *?C/W JMAX JA 5-LEAD PLASTIC TO-220 NC 8 9 NC LT1170CT/LT1170HVCT: T =100?C, ? = 2?C/W, ? = 75?C/W JMAX JC JA * ? will vary from approximately 25?C/W with 2.8 sq. LT1171CT/LT1171HVCT: T =100?C, ? = 4?C/W, ? = 75?C/W SW PACKAGE JMAX JC JA in. of 1oz. copper to 45?C/W with 0.20 sq. in. of 1oz. LT1172CT/LT1172HVCT: T =100?C, ? = 8?C/W, ? = 75?C/W 16-LEAD PLASTIC SO WIDE JMAX JC JA copper. Somewhat lower values can be obtained with Based on continuous operation. additional copper layers in multilayer boards. T = 100?C, ? = 150?C/W JMAX JA T = 125?C for intermittent fault conditions. JMAX Based on continuous operation. T = 125?C for intermittent fault conditions. JMAX 117012fi 2 For more information www.linear.com/LT1170 ion igura on ings bsoluLT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Fea T Descrip T ? n Wide Input Voltage Range: 3V to 60V The LT 1170/LT1171/LT1172 are monolithic high power- n switching regulators. They can be operated in all standard Low Quiescent Current: 6mA n switching configurations including buck, boost, flyback, Internal 5A Switch forward, inverting and ?Cuk.? A high current, high efficiency (2.5A for LT1171, 1.25A for LT1172) n switch is included on the die along with all oscillator, con- Shutdown Mode Draws Only 50?A Supply Current n trol and protection circuitry. Integration of all functions Very Few External Parts Required n allows the LT1170/LT1171/LT1172 to be built in a standard Self-Protected Against Overloads n 5-pin TO-3 or TO-220 power package as well as the 8-pin Operates in Nearly All Switching Topologies n packages (LT1172). This makes them extremely easy to Flyback-Regulated Mode Has Fully Floating Outputs n use and provides ?bust proof? operation similar to that Comes in Standard 5-Pin Packages n obtained with 3-pin linear regulators. LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages The LT1170/LT1171/LT1172 operate with supply voltages n Can Be Externally Synchronized from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no exter- a T nal power devices. By utilizing current-mode switching n techniques, they provide excellent AC and DC load and Logic Supply 5V at 10A n line regulation. 5V Logic to ?15V Op Amp Supply n Battery Upconverter The LT1170/LT1171/LT1172 have many unique features not n Power Inverter (+ to ?) or (? to +) found even on the vastly more difficult to use low power n Fully Floating Multiple Outputs control chips presently available. They use adaptive antisat USER NOTE: switch drive to allow very wide ranging load currents with This data sheet is only intended to provide specifications, graphs, and a general functional no loss in efficiency. An externally activated shutdown description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in mode reduces total supply current to 50?A typically for developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values standby operation. of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in L, LT, LTC, LTM, Linear Technology, the Linear logo are registered trademarks of Linear the higher frequency. A CAD design program called SwitcherCAD is also available. Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Boost Converter (5V to 12V) Maximum Output Power* 100 * ROUGH GUIDE ONLY. BUCK MODE L1** 5V L2 OUTPUT LT1170 P = (5A)(V ) 50?H OUT OUT 10?H FILTER SPECIAL TOPOLOGIES DELIVER 80 MORE POWER. C3 ** DIVIDE VERTICAL POWER SCALE 100?F D1 BUCK-BOOST BY TWO FOR LT1171, BY FOUR V MBR330 V = 30V FOR LT1172. IN O 60 12V V BOOST SW LT1170/1/2 TA02 1A FLYBACK + R1 C2 LT1170 10.7k 40 + 1000?F 1% C3* 100?F FB 20 V GND C BUCK-BOOST R2 R3 V = 5V 1.24k O 1k 1% 0 C1 0 10 20 30 40 50 1?F INPUT VOLTAGE (V) *REQUIRED IF INPUT LEADS = 2" ** COILTRONICS 50-2-52 1170/1/2 TA01 PULSE ENGINEERING 92114 117012fi 1 For more information www.linear.com/LT1170 POWER (W) ** ion pplica ions pplica ion uresLT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Fea T Descrip T ? n Wide Input Voltage Range: 3V to 60V The LT 1170/LT1171/LT1172 are monolithic high power- n switching regulators. They can be operated in all standard Low Quiescent Current: 6mA n switching configurations including buck, boost, flyback, Internal 5A Switch forward, inverting and ?Cuk.? A high current, high efficiency (2.5A for LT1171, 1.25A for LT1172) n switch is included on the die along with all oscillator, con- Shutdown Mode Draws Only 50?A Supply Current n trol and protection circuitry. Integration of all functions Very Few External Parts Required n allows the LT1170/LT1171/LT1172 to be built in a standard Self-Protected Against Overloads n 5-pin TO-3 or TO-220 power package as well as the 8-pin Operates in Nearly All Switching Topologies n packages (LT1172). This makes them extremely easy to Flyback-Regulated Mode Has Fully Floating Outputs n use and provides ?bust proof? operation similar to that Comes in Standard 5-Pin Packages n obtained with 3-pin linear regulators. LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages The LT1170/LT1171/LT1172 operate with supply voltages n Can Be Externally Synchronized from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no exter- a T nal power devices. By utilizing current-mode switching n techniques, they provide excellent AC and DC load and Logic Supply 5V at 10A n line regulation. 5V Logic to ?15V Op Amp Supply n Battery Upconverter The LT1170/LT1171/LT1172 have many unique features not n Power Inverter (+ to ?) or (? to +) found even on the vastly more difficult to use low power n Fully Floating Multiple Outputs control chips presently available. They use adaptive antisat USER NOTE: switch drive to allow very wide ranging load currents with This data sheet is only intended to provide specifications, graphs, and a general functional no loss in efficiency. An externally activated shutdown description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in mode reduces total supply current to 50?A typically for developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values standby operation. of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in L, LT, LTC, LTM, Linear Technology, the Linear logo are registered trademarks of Linear the higher frequency. A CAD design program called SwitcherCAD is also available. Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Boost Converter (5V to 12V) Maximum Output Power* 100 * ROUGH GUIDE ONLY. BUCK MODE L1** 5V L2 OUTPUT LT1170 P = (5A)(V ) 50?H OUT OUT 10?H FILTER SPECIAL TOPOLOGIES DELIVER 80 MORE POWER. C3 ** DIVIDE VERTICAL POWER SCALE 100?F D1 BUCK-BOOST BY TWO FOR LT1171, BY FOUR V MBR330 V = 30V FOR LT1172. IN O 60 12V V BOOST SW LT1170/1/2 TA02 1A FLYBACK + R1 C2 LT1170 10.7k 40 + 1000?F 1% C3* 100?F FB 20 V GND C BUCK-BOOST R2 R3 V = 5V 1.24k O 1k 1% 0 C1 0 10 20 30 40 50 1?F INPUT VOLTAGE (V) *REQUIRED IF INPUT LEADS = 2" ** COILTRONICS 50-2-52 1170/1/2 TA01 PULSE ENGINEERING 92114 117012fi 1 For more information www.linear.com/LT1170 POWER (W) ** ion pplica ions pplica ion uresLT1170/LT1171/LT1172 (Note 1) a Te Maxi Mu M r a T Supply Voltage Operating Junction Temperature Range LT1170/LT1171/LT1172HV (Note 2) .......................60V LT1170M/LT1171M (OBSOLETE) ....... ?55?C to 150?C LT1170/LT1171/LT1172 (Note 2) ............................40V LT1172M (OBSOLETE) ....................... ?55?C to 125?C Switch Output Voltage LT1170/LT1171/LT1172HVC, LT1170/LT1171/LT1172HV .....................................75V LT1170/LT1171/LT1172C (Oper.) ............. 0?C to 100?C LT1170/LT1171/LT1172 .........................................65V LT1170/LT1171/LT1172HVC LT1172S8 ..............................................................60V LT1170/LT1171/LT1172C (Sh. Ckt.) ........ 0?C to 125?C Feedback Pin Voltage (Transient, 1ms) ................... ?15V LT1170/LT1171/LT1172HVI, Storage Temperature Range .................. ?65?C to 150?C LT1170/LT1171/LT1172I (Oper.) .......... ?40?C to 100?C Lead Temperature (Soldering, 10 sec ....................300?C LT1170/LT1171/LT1172HVI, LT1170/LT1171/LT1172I (Sh. Ckt.) ...... ?40?C to 125?C p in c F T BOTTOM VIEW V V TOP VIEW TOP VIEW SW C 1 GND 1 8 E2 GND 1 8 E2 2 CASE 3 IS GND 4 V 2 7 V V 2 7 V C SW C SW FB 3 E1 FB 3 E1 V 6 6 IN FB K PACKAGE NC* 4 5 V NC* 4 5 V IN IN 4-LEAD TO-3 METAL CAN LT1170MK: T = 150?C, ? = 2?C/W, ? = 35?C/W N8 PACKAGE S8 PACKAGE J8 PACKAGE JMAX JC JA LT1170CK: T = 100?C, ? = 2?C/W, ? = 35?C/W 8-LEAD PDIP 8-LEAD PLASTIC SO 8-LEAD CERDIP JMAX JC JA LT1171MK: T = 150?C, ? = 4?C/W, ? = 35?C/W JMAX JC JA T = 100?C, ? = 100?C/W (N) T = 125?C, ? = 100?C/W JMAX JA JMAX JA LT1171CK: T = 100?C, ? = 4?C/W, ? = 35?C/W JMAX JC JA T = 100?C, ? = 120?C/W to 150?C/W JMAX JA LT1172MK: T = 150?C, ? = 8?C/W, ? = 35?C/W JMAX JC JA depending on board layout (S) * Do not connect Pin 4 of the LT1172 DIP or SO to external LT1172CK: T = 100?C, ? = 8?C/W, ? = 35?C/W JMAX JC JA circuitry. This pin may be active in future revisions. Based on continuous operation. * Do not connect Pin 4 of the LT1172 DIP or SO to external T = 125?C for intermittent fault conditions. JMAX OBSOLETE circuitry. This pin may be active in future revisions. OBSOLETE TOP VIEW TAB IS NC 1 16 NC FRONT VIEW FRONT VIEW GND NC 2 15 NC 5 V IN 5 V IN 4 V SW GND 3 14 E2 TAB IS 4 V SW 3 GND GND V 4 13 V C SW 3 GND 2 FB 1 V FB 5 12 E1 C 2 FB NC 6 11 V 1 V Q PACKAGE IN C 5-LEAD DD NC 7 10 NC T PACKAGE T = 100?C, ? = *?C/W JMAX JA 5-LEAD PLASTIC TO-220 NC 8 9 NC LT1170CT/LT1170HVCT: T =100?C, ? = 2?C/W, ? = 75?C/W JMAX JC JA * ? will vary from approximately 25?C/W with 2.8 sq. LT1171CT/LT1171HVCT: T =100?C, ? = 4?C/W, ? = 75?C/W SW PACKAGE JMAX JC JA in. of 1oz. copper to 45?C/W with 0.20 sq. in. of 1oz. LT1172CT/LT1172HVCT: T =100?C, ? = 8?C/W, ? = 75?C/W 16-LEAD PLASTIC SO WIDE JMAX JC JA copper. Somewhat lower values can be obtained with Based on continuous operation. additional copper layers in multilayer boards. T = 100?C, ? = 150?C/W JMAX JA T = 125?C for intermittent fault conditions. JMAX Based on continuous operation. T = 125?C for intermittent fault conditions. JMAX 117012fi 2 For more information www.linear.com/LT1170 ion igura on ings bsoluLT1170/LT1171/LT1172 o r Der i n F Ma T http://www.linear.com/product/LT1170#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT1172MJ8 (OBSOLETE) LT1172MJ8#TR LT1172 8-Lead CERDIP ?55?C to 125?C LT1172CJ8#PBF (OBSOLETE) LT1172CJ8#TRPBF 8-Lead CERDIP 0?C to 100?C LT1170MK#PBF (OBSOLETE) LT1170MK#TRPBF 4-Lead TO-3 Metal Can ?55?C to 125?C LT1170CK#PBF (OBSOLETE) LT1170CK#TRPBF 4-Lead TO-3 Metal Can 0?C to 100?C LT1171MK#PBF (OBSOLETE) LT1171MK#TRPBF 4-Lead TO-3 Metal Can ?55?C to 125?C LT1171CK#PBF (OBSOLETE) LT1171CK#TRPBF 4-Lead TO-3 Metal Can 0?C to 100?C LT1172MK#PBF (OBSOLETE) LT1172MK#TRPBF 4-Lead TO-3 Metal Can ?55?C to 125?C LT1172CK#PBF (OBSOLETE) LT1172CK#TRPBF 4-Lead TO-3 Metal Can 0?C to 100?C LT1172CN8#PBF LT1172CN8#TRPBF LT1172 8-Lead PDIP or 8-Lead Plastic SO 0?C to 100?C LT1172IN8#PBF LT1172IN8#TRPBF LT1172 8-Lead PDIP or 8-Lead Plastic SO ?40?C to 100?C LT1172CS8#PBF LT1172CS8#TRPBF 1172 8-Lead PDIP or 8-Lead Plastic SO 0?C to 100?C LT1172IS8#PBF LT1172IS8#TRPBF 1172I 8-Lead PDIP or 8-Lead Plastic SO ?40?C to 100?C LT1170CQ#PBF LT1170CQ#TRPBF LT1170 5-Lead DD 0?C to 100?C LT1170IQ#PBF LT1170IQ#TRPBF LT1170 5-Lead DD ?40?C to 100?C LT1170HVCQ#PBF LT1170HVCQ#TRPBF LT1170HV 5-Lead DD 0?C to 100?C LT1171CQ#PBF LT1171CQ#TRPBF LT1171 5-Lead DD 0?C to 100?C LT1171IQ#PBF LT1171IQ#TRPBF LT1171 5-Lead DD ?40?C to 100?C LT1171HVCQ#PBF LT1171HVCQ#TRPBF LT1171HV 5-Lead DD 0?C to 100?C LT1171HVIQ#PBF LT1171HVIQ#TRPBF LT1171HV 5-Lead DD ?40?C to 100?C LT1172CQ#PBF LT1172CQ#TRPBF LT1172 5-Lead DD 0?C to 100?C LT1172HVCQ#PBF LT1172HVCQ#TRPBF LT1172HV 5-Lead DD 0?C to 100?C LT1172HVIQ#PBF LT1172HVIQ#TRPBF LT1172HV 5-Lead DD ?40?C to 100?C LT1172CSW#PBF LT1172CSW#TRPBF LT1172CSW 16-Lead Plastic SO Wide 0?C to 100?C LT1170CT#PBF LT1170CQ#TRPBF LT1170 5-Lead Plastic TO-220 0?C to 100?C LT1170IT#PBF LT1170IT#TRPBF LT1170 5-Lead Plastic TO-220 ?40?C to 100?C LT1170HVCT#PBF LT1170HVCT#TRPBF LT1170HV 5-Lead Plastic TO-220 0?C to 100?C LT1170HVIT#PBF LT1170HVIT#TRPBF LT1170 5-Lead Plastic TO-220 ?40?C to 100?C LT1171CT#PBF LT1171CT#TRPBF LT1171 5-Lead Plastic TO-220 0?C to 100?C LT1171IT#PBF LT1171IT#TRPBF LT1171 5-Lead Plastic TO-220 ?40?C to 100?C LT1171HVCT#PBF LT1171HVCT#TRPBF LT1171HV 5-Lead Plastic TO-220 0?C to 100?C LT1171HVIT#PBF LT1171HVIT#TRPBF LT1171HV 5-Lead Plastic TO-220 ?40?C to 100?C LT1172CT#PBF LT1172CT#TRPBF LT1172 5-Lead Plastic TO-220 0?C to 100?C LT1172HVCT#PBF LT1172HVCT#TRPBF LT1172HV 5-Lead Plastic TO-220 0?C to 100?C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 117012fi 3 For more information www.linear.com/LT1170 ion orLT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Fea T Descrip T ? n Wide Input Voltage Range: 3V to 60V The LT 1170/LT1171/LT1172 are monolithic high power- n switching regulators. They can be operated in all standard Low Quiescent Current: 6mA n switching configurations including buck, boost, flyback, Internal 5A Switch forward, inverting and ?Cuk.? A high current, high efficiency (2.5A for LT1171, 1.25A for LT1172) n switch is included on the die along with all oscillator, con- Shutdown Mode Draws Only 50?A Supply Current n trol and protection circuitry. Integration of all functions Very Few External Parts Required n allows the LT1170/LT1171/LT1172 to be built in a standard Self-Protected Against Overloads n 5-pin TO-3 or TO-220 power package as well as the 8-pin Operates in Nearly All Switching Topologies n packages (LT1172). This makes them extremely easy to Flyback-Regulated Mode Has Fully Floating Outputs n use and provides ?bust proof? operation similar to that Comes in Standard 5-Pin Packages n obtained with 3-pin linear regulators. LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages The LT1170/LT1171/LT1172 operate with supply voltages n Can Be Externally Synchronized from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no exter- a T nal power devices. By utilizing current-mode switching n techniques, they provide excellent AC and DC load and Logic Supply 5V at 10A n line regulation. 5V Logic to ?15V Op Amp Supply n Battery Upconverter The LT1170/LT1171/LT1172 have many unique features not n Power Inverter (+ to ?) or (? to +) found even on the vastly more difficult to use low power n Fully Floating Multiple Outputs control chips presently available. They use adaptive antisat USER NOTE: switch drive to allow very wide ranging load currents with This data sheet is only intended to provide specifications, graphs, and a general functional no loss in efficiency. An externally activated shutdown description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in mode reduces total supply current to 50?A typically for developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values standby operation. of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in L, LT, LTC, LTM, Linear Technology, the Linear logo are registered trademarks of Linear the higher frequency. A CAD design program called SwitcherCAD is also available. Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Boost Converter (5V to 12V) Maximum Output Power* 100 * ROUGH GUIDE ONLY. BUCK MODE L1** 5V L2 OUTPUT LT1170 P = (5A)(V ) 50?H OUT OUT 10?H FILTER SPECIAL TOPOLOGIES DELIVER 80 MORE POWER. C3 ** DIVIDE VERTICAL POWER SCALE 100?F D1 BUCK-BOOST BY TWO FOR LT1171, BY FOUR V MBR330 V = 30V FOR LT1172. IN O 60 12V V BOOST SW LT1170/1/2 TA02 1A FLYBACK + R1 C2 LT1170 10.7k 40 + 1000?F 1% C3* 100?F FB 20 V GND C BUCK-BOOST R2 R3 V = 5V 1.24k O 1k 1% 0 C1 0 10 20 30 40 50 1?F INPUT VOLTAGE (V) *REQUIRED IF INPUT LEADS = 2" ** COILTRONICS 50-2-52 1170/1/2 TA01 PULSE ENGINEERING 92114 117012fi 1 For more information www.linear.com/LT1170 POWER (W) ** ion pplica ions pplica ion uresLT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Fea T Descrip T ? n Wide Input Voltage Range: 3V to 60V The LT 1170/LT1171/LT1172 are monolithic high power- n switching regulators. They can be operated in all standard Low Quiescent Current: 6mA n switching configurations including buck, boost, flyback, Internal 5A Switch forward, inverting and ?Cuk.? A high current, high efficiency (2.5A for LT1171, 1.25A for LT1172) n switch is included on the die along with all oscillator, con- Shutdown Mode Draws Only 50?A Supply Current n trol and protection circuitry. Integration of all functions Very Few External Parts Required n allows the LT1170/LT1171/LT1172 to be built in a standard Self-Protected Against Overloads n 5-pin TO-3 or TO-220 power package as well as the 8-pin Operates in Nearly All Switching Topologies n packages (LT1172). This makes them extremely easy to Flyback-Regulated Mode Has Fully Floating Outputs n use and provides ?bust proof? operation similar to that Comes in Standard 5-Pin Packages n obtained with 3-pin linear regulators. LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages The LT1170/LT1171/LT1172 operate with supply voltages n Can Be Externally Synchronized from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no exter- a T nal power devices. By utilizing current-mode switching n techniques, they provide excellent AC and DC load and Logic Supply 5V at 10A n line regulation. 5V Logic to ?15V Op Amp Supply n Battery Upconverter The LT1170/LT1171/LT1172 have many unique features not n Power Inverter (+ to ?) or (? to +) found even on the vastly more difficult to use low power n Fully Floating Multiple Outputs control chips presently available. They use adaptive antisat USER NOTE: switch drive to allow very wide ranging load currents with This data sheet is only intended to provide specifications, graphs, and a general functional no loss in efficiency. An externally activated shutdown description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in mode reduces total supply current to 50?A typically for developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values standby operation. of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in L, LT, LTC, LTM, Linear Technology, the Linear logo are registered trademarks of Linear the higher frequency. A CAD design program called SwitcherCAD is also available. Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Boost Converter (5V to 12V) Maximum Output Power* 100 * ROUGH GUIDE ONLY. BUCK MODE L1** 5V L2 OUTPUT LT1170 P = (5A)(V ) 50?H OUT OUT 10?H FILTER SPECIAL TOPOLOGIES DELIVER 80 MORE POWER. C3 ** DIVIDE VERTICAL POWER SCALE 100?F D1 BUCK-BOOST BY TWO FOR LT1171, BY FOUR V MBR330 V = 30V FOR LT1172. IN O 60 12V V BOOST SW LT1170/1/2 TA02 1A FLYBACK + R1 C2 LT1170 10.7k 40 + 1000?F 1% C3* 100?F FB 20 V GND C BUCK-BOOST R2 R3 V = 5V 1.24k O 1k 1% 0 C1 0 10 20 30 40 50 1?F INPUT VOLTAGE (V) *REQUIRED IF INPUT LEADS = 2" ** COILTRONICS 50-2-52 1170/1/2 TA01 PULSE ENGINEERING 92114 117012fi 1 For more information www.linear.com/LT1170 POWER (W) ** ion pplica ions pplica ion uresLT1170/LT1171/LT1172 (Note 1) a Te Maxi Mu M r a T Supply Voltage Operating Junction Temperature Range LT1170/LT1171/LT1172HV (Note 2) .......................60V LT1170M/LT1171M (OBSOLETE) ....... ?55?C to 150?C LT1170/LT1171/LT1172 (Note 2) ............................40V LT1172M (OBSOLETE) ....................... ?55?C to 125?C Switch Output Voltage LT1170/LT1171/LT1172HVC, LT1170/LT1171/LT1172HV .....................................75V LT1170/LT1171/LT1172C (Oper.) ............. 0?C to 100?C LT1170/LT1171/LT1172 .........................................65V LT1170/LT1171/LT1172HVC LT1172S8 ..............................................................60V LT1170/LT1171/LT1172C (Sh. Ckt.) ........ 0?C to 125?C Feedback Pin Voltage (Transient, 1ms) ................... ?15V LT1170/LT1171/LT1172HVI, Storage Temperature Range .................. ?65?C to 150?C LT1170/LT1171/LT1172I (Oper.) .......... ?40?C to 100?C Lead Temperature (Soldering, 10 sec ....................300?C LT1170/LT1171/LT1172HVI, LT1170/LT1171/LT1172I (Sh. Ckt.) ...... ?40?C to 125?C p in c F T BOTTOM VIEW V V TOP VIEW TOP VIEW SW C 1 GND 1 8 E2 GND 1 8 E2 2 CASE 3 IS GND 4 V 2 7 V V 2 7 V C SW C SW FB 3 E1 FB 3 E1 V 6 6 IN FB K PACKAGE NC* 4 5 V NC* 4 5 V IN IN 4-LEAD TO-3 METAL CAN LT1170MK: T = 150?C, ? = 2?C/W, ? = 35?C/W N8 PACKAGE S8 PACKAGE J8 PACKAGE JMAX JC JA LT1170CK: T = 100?C, ? = 2?C/W, ? = 35?C/W 8-LEAD PDIP 8-LEAD PLASTIC SO 8-LEAD CERDIP JMAX JC JA LT1171MK: T = 150?C, ? = 4?C/W, ? = 35?C/W JMAX JC JA T = 100?C, ? = 100?C/W (N) T = 125?C, ? = 100?C/W JMAX JA JMAX JA LT1171CK: T = 100?C, ? = 4?C/W, ? = 35?C/W JMAX JC JA T = 100?C, ? = 120?C/W to 150?C/W JMAX JA LT1172MK: T = 150?C, ? = 8?C/W, ? = 35?C/W JMAX JC JA depending on board layout (S) * Do not connect Pin 4 of the LT1172 DIP or SO to external LT1172CK: T = 100?C, ? = 8?C/W, ? = 35?C/W JMAX JC JA circuitry. This pin may be active in future revisions. Based on continuous operation. * Do not connect Pin 4 of the LT1172 DIP or SO to external T = 125?C for intermittent fault conditions. JMAX OBSOLETE circuitry. This pin may be active in future revisions. OBSOLETE TOP VIEW TAB IS NC 1 16 NC FRONT VIEW FRONT VIEW GND NC 2 15 NC 5 V IN 5 V IN 4 V SW GND 3 14 E2 TAB IS 4 V SW 3 GND GND V 4 13 V C SW 3 GND 2 FB 1 V FB 5 12 E1 C 2 FB NC 6 11 V 1 V Q PACKAGE IN C 5-LEAD DD NC 7 10 NC T PACKAGE T = 100?C, ? = *?C/W JMAX JA 5-LEAD PLASTIC TO-220 NC 8 9 NC LT1170CT/LT1170HVCT: T =100?C, ? = 2?C/W, ? = 75?C/W JMAX JC JA * ? will vary from approximately 25?C/W with 2.8 sq. LT1171CT/LT1171HVCT: T =100?C, ? = 4?C/W, ? = 75?C/W SW PACKAGE JMAX JC JA in. of 1oz. copper to 45?C/W with 0.20 sq. in. of 1oz. LT1172CT/LT1172HVCT: T =100?C, ? = 8?C/W, ? = 75?C/W 16-LEAD PLASTIC SO WIDE JMAX JC JA copper. Somewhat lower values can be obtained with Based on continuous operation. additional copper layers in multilayer boards. T = 100?C, ? = 150?C/W JMAX JA T = 125?C for intermittent fault conditions. JMAX Based on continuous operation. T = 125?C for intermittent fault conditions. JMAX 117012fi 2 For more information www.linear.com/LT1170 ion igura on ings bsoluLT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Fea T Descrip T ? n Wide Input Voltage Range: 3V to 60V The LT 1170/LT1171/LT1172 are monolithic high power- n switching regulators. They can be operated in all standard Low Quiescent Current: 6mA n switching configurations including buck, boost, flyback, Internal 5A Switch forward, inverting and ?Cuk.? A high current, high efficiency (2.5A for LT1171, 1.25A for LT1172) n switch is included on the die along with all oscillator, con- Shutdown Mode Draws Only 50?A Supply Current n trol and protection circuitry. Integration of all functions Very Few External Parts Required n allows the LT1170/LT1171/LT1172 to be built in a standard Self-Protected Against Overloads n 5-pin TO-3 or TO-220 power package as well as the 8-pin Operates in Nearly All Switching Topologies n packages (LT1172). This makes them extremely easy to Flyback-Regulated Mode Has Fully Floating Outputs n use and provides ?bust proof? operation similar to that Comes in Standard 5-Pin Packages n obtained with 3-pin linear regulators. LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages The LT1170/LT1171/LT1172 operate with supply voltages n Can Be Externally Synchronized from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no exter- a T nal power devices. By utilizing current-mode switching n techniques, they provide excellent AC and DC load and Logic Supply 5V at 10A n line regulation. 5V Logic to ?15V Op Amp Supply n Battery Upconverter The LT1170/LT1171/LT1172 have many unique features not n Power Inverter (+ to ?) or (? to +) found even on the vastly more difficult to use low power n Fully Floating Multiple Outputs control chips presently available. They use adaptive antisat USER NOTE: switch drive to allow very wide ranging load currents with This data sheet is only intended to provide specifications, graphs, and a general functional no loss in efficiency. An externally activated shutdown description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in mode reduces total supply current to 50?A typically for developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values standby operation. of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in L, LT, LTC, LTM, Linear Technology, the Linear logo are registered trademarks of Linear the higher frequency. A CAD design program called SwitcherCAD is also available. Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Boost Converter (5V to 12V) Maximum Output Power* 100 * ROUGH GUIDE ONLY. BUCK MODE L1** 5V L2 OUTPUT LT1170 P = (5A)(V ) 50?H OUT OUT 10?H FILTER SPECIAL TOPOLOGIES DELIVER 80 MORE POWER. C3 ** DIVIDE VERTICAL POWER SCALE 100?F D1 BUCK-BOOST BY TWO FOR LT1171, BY FOUR V MBR330 V = 30V FOR LT1172. IN O 60 12V V BOOST SW LT1170/1/2 TA02 1A FLYBACK + R1 C2 LT1170 10.7k 40 + 1000?F 1% C3* 100?F FB 20 V GND C BUCK-BOOST R2 R3 V = 5V 1.24k O 1k 1% 0 C1 0 10 20 30 40 50 1?F INPUT VOLTAGE (V) *REQUIRED IF INPUT LEADS = 2" ** COILTRONICS 50-2-52 1170/1/2 TA01 PULSE ENGINEERING 92114 117012fi 1 For more information www.linear.com/LT1170 POWER (W) ** ion pplica ions pplica ion uresLT1170/LT1171/LT1172 100kHz, 5A, 2.5A and 1.25A High Efficiency Switching Regulators Fea T Descrip T ? n Wide Input Voltage Range: 3V to 60V The LT 1170/LT1171/LT1172 are monolithic high power- n switching regulators. They can be operated in all standard Low Quiescent Current: 6mA n switching configurations including buck, boost, flyback, Internal 5A Switch forward, inverting and ?Cuk.? A high current, high efficiency (2.5A for LT1171, 1.25A for LT1172) n switch is included on the die along with all oscillator, con- Shutdown Mode Draws Only 50?A Supply Current n trol and protection circuitry. Integration of all functions Very Few External Parts Required n allows the LT1170/LT1171/LT1172 to be built in a standard Self-Protected Against Overloads n 5-pin TO-3 or TO-220 power package as well as the 8-pin Operates in Nearly All Switching Topologies n packages (LT1172). This makes them extremely easy to Flyback-Regulated Mode Has Fully Floating Outputs n use and provides ?bust proof? operation similar to that Comes in Standard 5-Pin Packages n obtained with 3-pin linear regulators. LT1172 Available in 8-Pin MiniDIP and Surface Mount Packages The LT1170/LT1171/LT1172 operate with supply voltages n Can Be Externally Synchronized from 3V to 60V, and draw only 6mA quiescent current. They can deliver load power up to 100W with no exter- a T nal power devices. By utilizing current-mode switching n techniques, they provide excellent AC and DC load and Logic Supply 5V at 10A n line regulation. 5V Logic to ?15V Op Amp Supply n Battery Upconverter The LT1170/LT1171/LT1172 have many unique features not n Power Inverter (+ to ?) or (? to +) found even on the vastly more difficult to use low power n Fully Floating Multiple Outputs control chips presently available. They use adaptive antisat USER NOTE: switch drive to allow very wide ranging load currents with This data sheet is only intended to provide specifications, graphs, and a general functional no loss in efficiency. An externally activated shutdown description of the LT1170/LT1171/LT1172. Application circuits are included to show the capability of the LT1170/LT1171/LT1172. A complete design manual (AN19) should be obtained to assist in mode reduces total supply current to 50?A typically for developing new designs. This manual contains a comprehensive discussion of both the LT1070 and the external components used with it, as well as complete formulas for calculating the values standby operation. of these components. The manual can also be used for the LT1170/LT1171/LT1172 by factoring in L, LT, LTC, LTM, Linear Technology, the Linear logo are registered trademarks of Linear the higher frequency. A CAD design program called SwitcherCAD is also available. Technology Corporation. All other trademarks are the property of their respective owners. Typical a T Boost Converter (5V to 12V) Maximum Output Power* 100 * ROUGH GUIDE ONLY. BUCK MODE L1** 5V L2 OUTPUT LT1170 P = (5A)(V ) 50?H OUT OUT 10?H FILTER SPECIAL TOPOLOGIES DELIVER 80 MORE POWER. C3 ** DIVIDE VERTICAL POWER SCALE 100?F D1 BUCK-BOOST BY TWO FOR LT1171, BY FOUR V MBR330 V = 30V FOR LT1172. IN O 60 12V V BOOST SW LT1170/1/2 TA02 1A FLYBACK + R1 C2 LT1170 10.7k 40 + 1000?F 1% C3* 100?F FB 20 V GND C BUCK-BOOST R2 R3 V = 5V 1.24k O 1k 1% 0 C1 0 10 20 30 40 50 1?F INPUT VOLTAGE (V) *REQUIRED IF INPUT LEADS = 2" ** COILTRONICS 50-2-52 1170/1/2 TA01 PULSE ENGINEERING 92114 117012fi 1 For more information www.linear.com/LT1170 POWER (W) ** ion pplica ions pplica ion uresLT1170/LT1171/LT1172 (Note 1) a Te Maxi Mu M r a T Supply Voltage Operating Junction Temperature Range LT1170/LT1171/LT1172HV (Note 2) .......................60V LT1170M/LT1171M (OBSOLETE) ....... ?55?C to 150?C LT1170/LT1171/LT1172 (Note 2) ............................40V LT1172M (OBSOLETE) ....................... ?55?C to 125?C Switch Output Voltage LT1170/LT1171/LT1172HVC, LT1170/LT1171/LT1172HV .....................................75V LT1170/LT1171/LT1172C (Oper.) ............. 0?C to 100?C LT1170/LT1171/LT1172 .........................................65V LT1170/LT1171/LT1172HVC LT1172S8 ..............................................................60V LT1170/LT1171/LT1172C (Sh. Ckt.) ........ 0?C to 125?C Feedback Pin Voltage (Transient, 1ms) ................... ?15V LT1170/LT1171/LT1172HVI, Storage Temperature Range .................. ?65?C to 150?C LT1170/LT1171/LT1172I (Oper.) .......... ?40?C to 100?C Lead Temperature (Soldering, 10 sec ....................300?C LT1170/LT1171/LT1172HVI, LT1170/LT1171/LT1172I (Sh. Ckt.) ...... ?40?C to 125?C p in c F T BOTTOM VIEW V V TOP VIEW TOP VIEW SW C 1 GND 1 8 E2 GND 1 8 E2 2 CASE 3 IS GND 4 V 2 7 V V 2 7 V C SW C SW FB 3 E1 FB 3 E1 V 6 6 IN FB K PACKAGE NC* 4 5 V NC* 4 5 V IN IN 4-LEAD TO-3 METAL CAN LT1170MK: T = 150?C, ? = 2?C/W, ? = 35?C/W N8 PACKAGE S8 PACKAGE J8 PACKAGE JMAX JC JA LT1170CK: T = 100?C, ? = 2?C/W, ? = 35?C/W 8-LEAD PDIP 8-LEAD PLASTIC SO 8-LEAD CERDIP JMAX JC JA LT1171MK: T = 150?C, ? = 4?C/W, ? = 35?C/W JMAX JC JA T = 100?C, ? = 100?C/W (N) T = 125?C, ? = 100?C/W JMAX JA JMAX JA LT1171CK: T = 100?C, ? = 4?C/W, ? = 35?C/W JMAX JC JA T = 100?C, ? = 120?C/W to 150?C/W JMAX JA LT1172MK: T = 150?C, ? = 8?C/W, ? = 35?C/W JMAX JC JA depending on board layout (S) * Do not connect Pin 4 of the LT1172 DIP or SO to external LT1172CK: T = 100?C, ? = 8?C/W, ? = 35?C/W JMAX JC JA circuitry. This pin may be active in future revisions. Based on continuous operation. * Do not connect Pin 4 of the LT1172 DIP or SO to external T = 125?C for intermittent fault conditions. JMAX OBSOLETE circuitry. This pin may be active in future revisions. OBSOLETE TOP VIEW TAB IS NC 1 16 NC FRONT VIEW FRONT VIEW GND NC 2 15 NC 5 V IN 5 V IN 4 V SW GND 3 14 E2 TAB IS 4 V SW 3 GND GND V 4 13 V C SW 3 GND 2 FB 1 V FB 5 12 E1 C 2 FB NC 6 11 V 1 V Q PACKAGE IN C 5-LEAD DD NC 7 10 NC T PACKAGE T = 100?C, ? = *?C/W JMAX JA 5-LEAD PLASTIC TO-220 NC 8 9 NC LT1170CT/LT1170HVCT: T =100?C, ? = 2?C/W, ? = 75?C/W JMAX JC JA * ? will vary from approximately 25?C/W with 2.8 sq. LT1171CT/LT1171HVCT: T =100?C, ? = 4?C/W, ? = 75?C/W SW PACKAGE JMAX JC JA in. of 1oz. copper to 45?C/W with 0.20 sq. in. of 1oz. LT1172CT/LT1172HVCT: T =100?C, ? = 8?C/W, ? = 75?C/W 16-LEAD PLASTIC SO WIDE JMAX JC JA copper. Somewhat lower values can be obtained with Based on continuous operation. additional copper layers in multilayer boards. T = 100?C, ? = 150?C/W JMAX JA T = 125?C for intermittent fault conditions. JMAX Based on continuous operation. T = 125?C for intermittent fault conditions. JMAX 117012fi 2 For more information www.linear.com/LT1170 ion igura on ings bsoluLT1170/LT1171/LT1172 o r Der i n F Ma T http://www.linear.com/product/LT1170#orderinfo LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LT1172MJ8 (OBSOLETE) LT1172MJ8#TR LT1172 8-Lead CERDIP ?55?C to 125?C LT1172CJ8#PBF (OBSOLETE) LT1172CJ8#TRPBF 8-Lead CERDIP 0?C to 100?C LT1170MK#PBF (OBSOLETE) LT1170MK#TRPBF 4-Lead TO-3 Metal Can ?55?C to 125?C LT1170CK#PBF (OBSOLETE) LT1170CK#TRPBF 4-Lead TO-3 Metal Can 0?C to 100?C LT1171MK#PBF (OBSOLETE) LT1171MK#TRPBF 4-Lead TO-3 Metal Can ?55?C to 125?C LT1171CK#PBF (OBSOLETE) LT1171CK#TRPBF 4-Lead TO-3 Metal Can 0?C to 100?C LT1172MK#PBF (OBSOLETE) LT1172MK#TRPBF 4-Lead TO-3 Metal Can ?55?C to 125?C LT1172CK#PBF (OBSOLETE) LT1172CK#TRPBF 4-Lead TO-3 Metal Can 0?C to 100?C LT1172CN8#PBF LT1172CN8#TRPBF LT1172 8-Lead PDIP or 8-Lead Plastic SO 0?C to 100?C LT1172IN8#PBF LT1172IN8#TRPBF LT1172 8-Lead PDIP or 8-Lead Plastic SO ?40?C to 100?C LT1172CS8#PBF LT1172CS8#TRPBF 1172 8-Lead PDIP or 8-Lead Plastic SO 0?C to 100?C LT1172IS8#PBF LT1172IS8#TRPBF 1172I 8-Lead PDIP or 8-Lead Plastic SO ?40?C to 100?C LT1170CQ#PBF LT1170CQ#TRPBF LT1170 5-Lead DD 0?C to 100?C LT1170IQ#PBF LT1170IQ#TRPBF LT1170 5-Lead DD ?40?C to 100?C LT1170HVCQ#PBF LT1170HVCQ#TRPBF LT1170HV 5-Lead DD 0?C to 100?C LT1171CQ#PBF LT1171CQ#TRPBF LT1171 5-Lead DD 0?C to 100?C LT1171IQ#PBF LT1171IQ#TRPBF LT1171 5-Lead DD ?40?C to 100?C LT1171HVCQ#PBF LT1171HVCQ#TRPBF LT1171HV 5-Lead DD 0?C to 100?C LT1171HVIQ#PBF LT1171HVIQ#TRPBF LT1171HV 5-Lead DD ?40?C to 100?C LT1172CQ#PBF LT1172CQ#TRPBF LT1172 5-Lead DD 0?C to 100?C LT1172HVCQ#PBF LT1172HVCQ#TRPBF LT1172HV 5-Lead DD 0?C to 100?C LT1172HVIQ#PBF LT1172HVIQ#TRPBF LT1172HV 5-Lead DD ?40?C to 100?C LT1172CSW#PBF LT1172CSW#TRPBF LT1172CSW 16-Lead Plastic SO Wide 0?C to 100?C LT1170CT#PBF LT1170CQ#TRPBF LT1170 5-Lead Plastic TO-220 0?C to 100?C LT1170IT#PBF LT1170IT#TRPBF LT1170 5-Lead Plastic TO-220 ?40?C to 100?C LT1170HVCT#PBF LT1170HVCT#TRPBF LT1170HV 5-Lead Plastic TO-220 0?C to 100?C LT1170HVIT#PBF LT1170HVIT#TRPBF LT1170 5-Lead Plastic TO-220 ?40?C to 100?C LT1171CT#PBF LT1171CT#TRPBF LT1171 5-Lead Plastic TO-220 0?C to 100?C LT1171IT#PBF LT1171IT#TRPBF LT1171 5-Lead Plastic TO-220 ?40?C to 100?C LT1171HVCT#PBF LT1171HVCT#TRPBF LT1171HV 5-Lead Plastic TO-220 0?C to 100?C LT1171HVIT#PBF LT1171HVIT#TRPBF LT1171HV 5-Lead Plastic TO-220 ?40?C to 100?C LT1172CT#PBF LT1172CT#TRPBF LT1172 5-Lead Plastic TO-220 0?C to 100?C LT1172HVCT#PBF LT1172HVCT#TRPBF LT1172HV 5-Lead Plastic TO-220 0?C to 100?C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: http://www.linear.com/leadfree/ For more information on tape and reel specifications, go to: http://www.linear.com/tapeandreel/. Some packages are available in 500 unit reels through designated sales channels with #TRMPBF suffix. 117012fi 3 For more information www.linear.com/LT1170 ion or

Tariff Concession Code
Tariff Desc

Free
8542.31.00 51 No ..Application Specific (Digital) Integrated Circuits (ASIC)

Electronic integrated circuits: Processors and controllers, whether or not combined with memories, converters, logic circuits, amplifiers, clock and timing circuits, or other circuits
Monolithic integrated circuits:
AD4
ANALOG DEVICES
Analog Devices Hittite
ANALOG DEVICES (LINEAR TECHNOLOGY)
Analog Devices / Hittite
Analog Devices / Linear Technology
Analog Devices Inc
Analog Devices Inc.
Analog Devices, Inc.
ANALOG MICRO ELECTRONICS
ANALOG MICROELECTRONICS
LINEAR
LINEAR TECH
Linear Technology
Linear Technology (part of ADI)
LT
LT4
Technology