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LTC1174CS8-5#PBF

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Switching Voltage Regulators High Efficiency Step-Down and Inverting DC/DC Converter
Manufacturer: Analog Devices



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Ships to you between Tue. 27 Apr to Thu. 29 Apr

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LTC1174CS8-5#PBF
Analog Devices

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Manufacturer
Analog Devices
Product Category
Switching Voltage Regulators
RoHS - XON
Y Icon ROHS
Mounting Style
Smd/Smt
Output Voltage
5 V
Output Current
0.432 A
Number of Outputs
1 Output
Input Voltage MAX
13.5 V
Topology
Buck, Inverting
Input Voltage MIN
4 V
Switching Frequency
200 Khz
Minimum Operating Temperature
0 C
Maximum Operating Temperature
+70 C
Series
Ltc1174
Packaging
Tube
Height
1.75 mm
Input Voltage
9 V
Operating Temperature Range
0 C to +70 C
Package / Case
SO-8
Type
Step-Down And Inverting Dc/Dc Converter
Brand
Analog Devices / Linear Technology
Shutdown
Shutdown
Development Kit
Dc059a-A, Dc059a-B, Dc059a-C
Load Regulation
- 50 Mv
Operating Supply Current
0.13 mA
Product Type
Switching Voltage Regulators
Factory Pack Quantity :
100
Subcategory
Pmic - Power Management Ics
Cnhts
8542390000
Hts Code
8542390001
Mxhts
85423901
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Mfr. Part No.
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LTC1174 LTC1174-3.3/LTC1174-5 High Efficiency Step-Down and Inverting DC/DC Converter FEATURES DESCRIPTIO ? ? High Efficiency: Up to 94% The LTC 1174 is a simple current mode DC/DC converter ? Peak Inductor Current Independent of ideally suited for 9V to 5V, 5V to 3.3V or 5V to ?5V Inductor Value operation. With an internal 0.9? switch (at a supply ? Short-Circuit Protection voltage of 9V), the LTC1174 requires only four external ? Optimized for 5V to ?5V Applications components to construct a complete high efficiency ? Wide V Range: 4V to 18.5V DC/DC converter. IN ? Low Dropout Operation Under a no load condition the LTC1174 draws only 130?A. ? Low-Battery Detector In shutdown, it draws a mere 1?A making this converter ? Pin Selectable Current Limit ideal for current sensitive applications. In dropout, the ? Internal 0.9 ? Power Switch: V = 9V IN internal P-channel MOSFET switch is turned on continu- ? Only Four External Components Required ously allowing the user to maximize the life of the battery ? 130?A Standby Current source. ? Active Low Micropower Shutdown The maximum inductor current of the LTC1174 family is U pin selectable to either 340mA or 600mA, optimizing APPLICATIO S efficiency for a wide range of applications. Operation up to ? Distributed Power Systems 200kHz permits the use of small surface mount inductors ? Step-Down Converters and capacitors. ? Inverting Converters For applications requiring higher output current or ultra- ? Memory Backup Supply high efficiency, see the LTC1148 data sheet. ? Portable Instruments , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ? Battery-Powered Equipment All other trademarks are the property of their respective owners. TYPICAL APPLICATIO High Efficiency Step-Down Converter LTC1174-5 Efficiency 100 V IN 9V 15?F* 95 + 6 V = 6V 25V IN V IN ?3 3 8 90 LB SHUTDOWN IN V = 9V IN 2 1 LB V OUT OUT 85 7 5 5V I SW PGM ? 175mA 100?H LTC1174-5 + 80 100?F** GND 1N5818 10V L = 100?H 4 75 V = 5V OUT 1174 TA01 I = 0V PGM * (3) AVX TPSD156K025 70 ** AVX TPSD107K010 1 10 100 200 ? COILTRONICS CTX100-4 LOAD CURRENT (mA) 1174 TA02 1174fe 1 EFFICIENCY (%) U ULTC1174 LTC1174-3.3/LTC1174-5 High Efficiency Step-Down and Inverting DC/DC Converter FEATURES DESCRIPTIO ? ? High Efficiency: Up to 94% The LTC 1174 is a simple current mode DC/DC converter ? Peak Inductor Current Independent of ideally suited for 9V to 5V, 5V to 3.3V or 5V to ?5V Inductor Value operation. With an internal 0.9? switch (at a supply ? Short-Circuit Protection voltage of 9V), the LTC1174 requires only four external ? Optimized for 5V to ?5V Applications components to construct a complete high efficiency ? Wide V Range: 4V to 18.5V DC/DC converter. IN ? Low Dropout Operation Under a no load condition the LTC1174 draws only 130?A. ? Low-Battery Detector In shutdown, it draws a mere 1?A making this converter ? Pin Selectable Current Limit ideal for current sensitive applications. In dropout, the ? Internal 0.9 ? Power Switch: V = 9V IN internal P-channel MOSFET switch is turned on continu- ? Only Four External Components Required ously allowing the user to maximize the life of the battery ? 130?A Standby Current source. ? Active Low Micropower Shutdown The maximum inductor current of the LTC1174 family is U pin selectable to either 340mA or 600mA, optimizing APPLICATIO S efficiency for a wide range of applications. Operation up to ? Distributed Power Systems 200kHz permits the use of small surface mount inductors ? Step-Down Converters and capacitors. ? Inverting Converters For applications requiring higher output current or ultra- ? Memory Backup Supply high efficiency, see the LTC1148 data sheet. ? Portable Instruments , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ? Battery-Powered Equipment All other trademarks are the property of their respective owners. TYPICAL APPLICATIO High Efficiency Step-Down Converter LTC1174-5 Efficiency 100 V IN 9V 15?F* 95 + 6 V = 6V 25V IN V IN ?3 3 8 90 LB SHUTDOWN IN V = 9V IN 2 1 LB V OUT OUT 85 7 5 5V I SW PGM ? 175mA 100?H LTC1174-5 + 80 100?F** GND 1N5818 10V L = 100?H 4 75 V = 5V OUT 1174 TA01 I = 0V PGM * (3) AVX TPSD156K025 70 ** AVX TPSD107K010 1 10 100 200 ? COILTRONICS CTX100-4 LOAD CURRENT (mA) 1174 TA02 1174fe 1 EFFICIENCY (%) U ULTC1174 LTC1174-3.3/LTC1174-5 ABSOLUTE AXI U RATI GS (Note 1) (Voltage Referred to GND Pin) Operating Temperature Range Input Supply Voltage (Pin 6) LTC1174CX ............................................ 0?C to 70?C LTC1174 ........................................... ?0.3V to 13.5V LTC1174IX ........................................ ? 40?C to 85?C LTC1174HV ...................................... ?0.3V to 18.5V Junction Temperature (Note 2)............................ 125?C Switch Current (Pin 5) .............................................. 1A Storage Temperature Range ................ ?65?C to 150?C Switch Voltage (Pin 5) Lead Temperature (Soldering, 10 sec)................. 300?C LTC1174 ................................................. V ? 13.5V IN LTC1174HV ............................................ V ? 18.5V IN UUW PACKAGE/ORDER I FOR ATIO TOP VIEW TOP VIEW V (V *) 1 8 SHUTDOWN V (V *) 1 8 SHUTDOWN OUT FB OUT FB LB 2 7 I LB 2 I OUT PGM 7 OUT PGM LB V 3 6 LB 3 6 V IN IN IN IN GND SW GND SW 4 5 4 5 S8 PACKAGE N8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD PDIP * ADJUSTABLE OUTPUT VERSION * ADJUSTABLE OUTPUT VERSION T = 125?C, ? = 150?C/W T = 125?C, ? = 110?C/W JMAX JA JMAX JA ORDER PART NUMBER ORDER PART NUMBER S8 PART MARKING LTC1174CN8 LTC1174CS8 1174 LTC1174CN8-3.3 LTC1174CS8-3.3 117433 LTC1174CN8-5 LTC1174CS8-5 117450 LTC1174IN8 LTC1174IS8 1174I LTC1174HVCN8 LTC1174HVCS8 1174H LTC1174HVCN8-3.3 LTC1174HVCS8-3.3 1174H3 LTC1174HVCN8-5 LTC1174HVCS8-5 1174H5 LTC1174HVIS8 1174HI Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The ? denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25?C. V = 9V, V = V , I = 0V, unless otherwise noted. A IN SHUTDOWN IN PGM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I Feedback Current LTC1174/LTC1174HV 1 ?A FB V Feedback Voltage LTC1174/LTC1174HV ? 1.20 1.25 1.30 V FB V Regulated Output Voltage LTC1174-3.3/LTC1174HV-3.3 ? 3.14 3.30 3.46 V OUT LTC1174-5/LTC1174V-5 ? 4.75 5.00 5.25 V ?V Output Voltage Line Regulation V = 6V to 12V, I = 100mA, I = V (Note 3) 10 70 mV OUT IN LOAD PGM IN 1174fe 2 U WWWLTC1174 LTC1174-3.3/LTC1174-5 High Efficiency Step-Down and Inverting DC/DC Converter FEATURES DESCRIPTIO ? ? High Efficiency: Up to 94% The LTC 1174 is a simple current mode DC/DC converter ? Peak Inductor Current Independent of ideally suited for 9V to 5V, 5V to 3.3V or 5V to ?5V Inductor Value operation. With an internal 0.9? switch (at a supply ? Short-Circuit Protection voltage of 9V), the LTC1174 requires only four external ? Optimized for 5V to ?5V Applications components to construct a complete high efficiency ? Wide V Range: 4V to 18.5V DC/DC converter. IN ? Low Dropout Operation Under a no load condition the LTC1174 draws only 130?A. ? Low-Battery Detector In shutdown, it draws a mere 1?A making this converter ? Pin Selectable Current Limit ideal for current sensitive applications. In dropout, the ? Internal 0.9 ? Power Switch: V = 9V IN internal P-channel MOSFET switch is turned on continu- ? Only Four External Components Required ously allowing the user to maximize the life of the battery ? 130?A Standby Current source. ? Active Low Micropower Shutdown The maximum inductor current of the LTC1174 family is U pin selectable to either 340mA or 600mA, optimizing APPLICATIO S efficiency for a wide range of applications. Operation up to ? Distributed Power Systems 200kHz permits the use of small surface mount inductors ? Step-Down Converters and capacitors. ? Inverting Converters For applications requiring higher output current or ultra- ? Memory Backup Supply high efficiency, see the LTC1148 data sheet. ? Portable Instruments , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ? Battery-Powered Equipment All other trademarks are the property of their respective owners. TYPICAL APPLICATIO High Efficiency Step-Down Converter LTC1174-5 Efficiency 100 V IN 9V 15?F* 95 + 6 V = 6V 25V IN V IN ?3 3 8 90 LB SHUTDOWN IN V = 9V IN 2 1 LB V OUT OUT 85 7 5 5V I SW PGM ? 175mA 100?H LTC1174-5 + 80 100?F** GND 1N5818 10V L = 100?H 4 75 V = 5V OUT 1174 TA01 I = 0V PGM * (3) AVX TPSD156K025 70 ** AVX TPSD107K010 1 10 100 200 ? COILTRONICS CTX100-4 LOAD CURRENT (mA) 1174 TA02 1174fe 1 EFFICIENCY (%) U ULTC1174 LTC1174-3.3/LTC1174-5 High Efficiency Step-Down and Inverting DC/DC Converter FEATURES DESCRIPTIO ? ? High Efficiency: Up to 94% The LTC 1174 is a simple current mode DC/DC converter ? Peak Inductor Current Independent of ideally suited for 9V to 5V, 5V to 3.3V or 5V to ?5V Inductor Value operation. With an internal 0.9? switch (at a supply ? Short-Circuit Protection voltage of 9V), the LTC1174 requires only four external ? Optimized for 5V to ?5V Applications components to construct a complete high efficiency ? Wide V Range: 4V to 18.5V DC/DC converter. IN ? Low Dropout Operation Under a no load condition the LTC1174 draws only 130?A. ? Low-Battery Detector In shutdown, it draws a mere 1?A making this converter ? Pin Selectable Current Limit ideal for current sensitive applications. In dropout, the ? Internal 0.9 ? Power Switch: V = 9V IN internal P-channel MOSFET switch is turned on continu- ? Only Four External Components Required ously allowing the user to maximize the life of the battery ? 130?A Standby Current source. ? Active Low Micropower Shutdown The maximum inductor current of the LTC1174 family is U pin selectable to either 340mA or 600mA, optimizing APPLICATIO S efficiency for a wide range of applications. Operation up to ? Distributed Power Systems 200kHz permits the use of small surface mount inductors ? Step-Down Converters and capacitors. ? Inverting Converters For applications requiring higher output current or ultra- ? Memory Backup Supply high efficiency, see the LTC1148 data sheet. ? Portable Instruments , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ? Battery-Powered Equipment All other trademarks are the property of their respective owners. TYPICAL APPLICATIO High Efficiency Step-Down Converter LTC1174-5 Efficiency 100 V IN 9V 15?F* 95 + 6 V = 6V 25V IN V IN ?3 3 8 90 LB SHUTDOWN IN V = 9V IN 2 1 LB V OUT OUT 85 7 5 5V I SW PGM ? 175mA 100?H LTC1174-5 + 80 100?F** GND 1N5818 10V L = 100?H 4 75 V = 5V OUT 1174 TA01 I = 0V PGM * (3) AVX TPSD156K025 70 ** AVX TPSD107K010 1 10 100 200 ? COILTRONICS CTX100-4 LOAD CURRENT (mA) 1174 TA02 1174fe 1 EFFICIENCY (%) U ULTC1174 LTC1174-3.3/LTC1174-5 ABSOLUTE AXI U RATI GS (Note 1) (Voltage Referred to GND Pin) Operating Temperature Range Input Supply Voltage (Pin 6) LTC1174CX ............................................ 0?C to 70?C LTC1174 ........................................... ?0.3V to 13.5V LTC1174IX ........................................ ? 40?C to 85?C LTC1174HV ...................................... ?0.3V to 18.5V Junction Temperature (Note 2)............................ 125?C Switch Current (Pin 5) .............................................. 1A Storage Temperature Range ................ ?65?C to 150?C Switch Voltage (Pin 5) Lead Temperature (Soldering, 10 sec)................. 300?C LTC1174 ................................................. V ? 13.5V IN LTC1174HV ............................................ V ? 18.5V IN UUW PACKAGE/ORDER I FOR ATIO TOP VIEW TOP VIEW V (V *) 1 8 SHUTDOWN V (V *) 1 8 SHUTDOWN OUT FB OUT FB LB 2 7 I LB 2 I OUT PGM 7 OUT PGM LB V 3 6 LB 3 6 V IN IN IN IN GND SW GND SW 4 5 4 5 S8 PACKAGE N8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD PDIP * ADJUSTABLE OUTPUT VERSION * ADJUSTABLE OUTPUT VERSION T = 125?C, ? = 150?C/W T = 125?C, ? = 110?C/W JMAX JA JMAX JA ORDER PART NUMBER ORDER PART NUMBER S8 PART MARKING LTC1174CN8 LTC1174CS8 1174 LTC1174CN8-3.3 LTC1174CS8-3.3 117433 LTC1174CN8-5 LTC1174CS8-5 117450 LTC1174IN8 LTC1174IS8 1174I LTC1174HVCN8 LTC1174HVCS8 1174H LTC1174HVCN8-3.3 LTC1174HVCS8-3.3 1174H3 LTC1174HVCN8-5 LTC1174HVCS8-5 1174H5 LTC1174HVIS8 1174HI Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The ? denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25?C. V = 9V, V = V , I = 0V, unless otherwise noted. A IN SHUTDOWN IN PGM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I Feedback Current LTC1174/LTC1174HV 1 ?A FB V Feedback Voltage LTC1174/LTC1174HV ? 1.20 1.25 1.30 V FB V Regulated Output Voltage LTC1174-3.3/LTC1174HV-3.3 ? 3.14 3.30 3.46 V OUT LTC1174-5/LTC1174V-5 ? 4.75 5.00 5.25 V ?V Output Voltage Line Regulation V = 6V to 12V, I = 100mA, I = V (Note 3) 10 70 mV OUT IN LOAD PGM IN 1174fe 2 U WWWLTC1174 LTC1174-3.3/LTC1174-5 ELECTRICAL CHARACTERISTICS The ? denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25?C. V = 9V, V = V , I = 0V, unless otherwise noted. A IN SHUTDOWN IN PGM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage Load Regulation LTC1174-3.3 (Note 3) 20mA < I < 175mA, I = 0V ?5 ?70 mV LOAD PGM 20mA < I < 400mA, I = V ?45 ?70 mV LOAD PGM IN LTC1174-5 (Note 3) 20mA < I < 175mA, I = 0V ?5 ?70 mV LOAD PGM 20mA < I < 400mA, I = V ?50 ?70 mV LOAD PGM IN I Input DC Supply Current (Note 4) Active Mode Q LTC1174: 4V < V < 12V, I = 0V 450 600 ?A IN PGM LTC1174HV: 4V < V < 16V, I = 0V 450 600 ?A IN PGM Sleep Mode LTC1174: 4V < V < 12V 130 180 ?A IN LTC1174HV: 4V < V < 16V 130 180 ?A IN SHUTDOWN (Note 4) LTC1174: V = 0V, 4V < V < 12V 1 10 ?A SHUTDOWN IN LTC1174HV: V = 0V, 4V < V < 16V 2 25 ?A SHUTDOWN IN V Low-Battery Trip Point 1.25 1.4 V LBTRIP I Current into Pin 3 0.5 ?A LBIN I Current Sunk by Pin 2 LTC1174: V = 0.4V 1.0 1.2 1.5 mA LBOUT LBOUT LTC1174HV: V = 0.4V 0.6 0.8 1.5 mA LBOUT V Comparator Hysteresis LTC1174/LTC1174HV 7.5 15 30 mV HYST I Current Limit I = V , V = 0V ? 0.54 0.60 0.83 A PEAK PGM IN OUT = 0V, V = 0V ? 0.27 0.34 0.53 A I PGM OUT R ON Resistance of Switch LTC1174 ? 0.75 1.30 ? ON LTC1174HV ? 0.90 1.55 ? t Switch Off-Time (Note 6) V at Regulated Value 3 4 5 ?s OFF OUT V SHUTDOWN Pin High Minimum Voltage at Pin 8 for Device to Be Active 1.2 V IH V SHUTDOWN Pin Low Maximum Voltage at Pin 8 for Device to Be in Shutdown 0.75 V IL I SHUTDOWN Pin Input Current LTC1174: V = 12V 0.5 ?A IH SHUTDOWN LTC1174HV: V = 16V 2.0 ?A SHUTDOWN I SHUTDOWN Pin Input Current 0 ? V ? 0.8V 0.5 ?A IL SHUTDOWN The ? denotes specifications which apply over the full operating temperature range, otherwise specifications are at ?40?C ? T ? 85?C. LTC1174I and LTC1174HVI Only. A SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Feedback Voltage LTC1174I/LTC1174HVI ? 1.18 1.25 1.31 V FB I Current Sunk by Pin 2 V = 0.4V (LTC1174I) ? 0.75 1.2 2.0 mA LBOUT LBOUT V = 0.4V (LTC1174HVI) ? 0.50 0.8 1.6 mA LBOUT I Current Limit I = V , V = 0V (LTC1174I) ? 0.54 0.60 0.84 A PEAK PGM IN OUT I = 0V, V = 0V (LTC1174I) 0.34 A PGM OUT I = V , V = 0V (LTC1174HVI) ? 0.5 0.60 0.86 A PGM IN OUT I = 0V, V = 0V (LTC1174HVI) 0.34 A PGM OUT t Switch Off-Time (Note 6) V at Regulated Value (LTC1174I) ? 2.0 4 6.0 ?s OFF OUT V at Regulated Value (LTC1174HVI) ? 1.8 4 6.2 ?s OUT R Switch On Resistance LTC1174I/LTC1174HVI ? 0.9 1.7 ? ON Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 2: T is calculated from the ambient temperature T and power J A may cause permanent damage to the device. Exposure to any Absolute dissipation P according to the following formulas: D Maximum Rating condition for extended periods may affect device LTC1174CN8, LTC1174CN8-3.3, LTC1174CN8-5: reliability and lifetime. T = T + (P ? 110?C/W) J A D LTC1174CS8, LTC1174CS8-3.3, LTC1174CS8-5: T = T + (P ? 150?C/W) J A D 1174fe 3LTC1174 LTC1174-3.3/LTC1174-5 High Efficiency Step-Down and Inverting DC/DC Converter FEATURES DESCRIPTIO ? ? High Efficiency: Up to 94% The LTC 1174 is a simple current mode DC/DC converter ? Peak Inductor Current Independent of ideally suited for 9V to 5V, 5V to 3.3V or 5V to ?5V Inductor Value operation. With an internal 0.9? switch (at a supply ? Short-Circuit Protection voltage of 9V), the LTC1174 requires only four external ? Optimized for 5V to ?5V Applications components to construct a complete high efficiency ? Wide V Range: 4V to 18.5V DC/DC converter. IN ? Low Dropout Operation Under a no load condition the LTC1174 draws only 130?A. ? Low-Battery Detector In shutdown, it draws a mere 1?A making this converter ? Pin Selectable Current Limit ideal for current sensitive applications. In dropout, the ? Internal 0.9 ? Power Switch: V = 9V IN internal P-channel MOSFET switch is turned on continu- ? Only Four External Components Required ously allowing the user to maximize the life of the battery ? 130?A Standby Current source. ? Active Low Micropower Shutdown The maximum inductor current of the LTC1174 family is U pin selectable to either 340mA or 600mA, optimizing APPLICATIO S efficiency for a wide range of applications. Operation up to ? Distributed Power Systems 200kHz permits the use of small surface mount inductors ? Step-Down Converters and capacitors. ? Inverting Converters For applications requiring higher output current or ultra- ? Memory Backup Supply high efficiency, see the LTC1148 data sheet. ? Portable Instruments , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ? Battery-Powered Equipment All other trademarks are the property of their respective owners. TYPICAL APPLICATIO High Efficiency Step-Down Converter LTC1174-5 Efficiency 100 V IN 9V 15?F* 95 + 6 V = 6V 25V IN V IN ?3 3 8 90 LB SHUTDOWN IN V = 9V IN 2 1 LB V OUT OUT 85 7 5 5V I SW PGM ? 175mA 100?H LTC1174-5 + 80 100?F** GND 1N5818 10V L = 100?H 4 75 V = 5V OUT 1174 TA01 I = 0V PGM * (3) AVX TPSD156K025 70 ** AVX TPSD107K010 1 10 100 200 ? COILTRONICS CTX100-4 LOAD CURRENT (mA) 1174 TA02 1174fe 1 EFFICIENCY (%) U ULTC1174 LTC1174-3.3/LTC1174-5 High Efficiency Step-Down and Inverting DC/DC Converter FEATURES DESCRIPTIO ? ? High Efficiency: Up to 94% The LTC 1174 is a simple current mode DC/DC converter ? Peak Inductor Current Independent of ideally suited for 9V to 5V, 5V to 3.3V or 5V to ?5V Inductor Value operation. With an internal 0.9? switch (at a supply ? Short-Circuit Protection voltage of 9V), the LTC1174 requires only four external ? Optimized for 5V to ?5V Applications components to construct a complete high efficiency ? Wide V Range: 4V to 18.5V DC/DC converter. IN ? Low Dropout Operation Under a no load condition the LTC1174 draws only 130?A. ? Low-Battery Detector In shutdown, it draws a mere 1?A making this converter ? Pin Selectable Current Limit ideal for current sensitive applications. In dropout, the ? Internal 0.9 ? Power Switch: V = 9V IN internal P-channel MOSFET switch is turned on continu- ? Only Four External Components Required ously allowing the user to maximize the life of the battery ? 130?A Standby Current source. ? Active Low Micropower Shutdown The maximum inductor current of the LTC1174 family is U pin selectable to either 340mA or 600mA, optimizing APPLICATIO S efficiency for a wide range of applications. Operation up to ? Distributed Power Systems 200kHz permits the use of small surface mount inductors ? Step-Down Converters and capacitors. ? Inverting Converters For applications requiring higher output current or ultra- ? Memory Backup Supply high efficiency, see the LTC1148 data sheet. ? Portable Instruments , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ? Battery-Powered Equipment All other trademarks are the property of their respective owners. TYPICAL APPLICATIO High Efficiency Step-Down Converter LTC1174-5 Efficiency 100 V IN 9V 15?F* 95 + 6 V = 6V 25V IN V IN ?3 3 8 90 LB SHUTDOWN IN V = 9V IN 2 1 LB V OUT OUT 85 7 5 5V I SW PGM ? 175mA 100?H LTC1174-5 + 80 100?F** GND 1N5818 10V L = 100?H 4 75 V = 5V OUT 1174 TA01 I = 0V PGM * (3) AVX TPSD156K025 70 ** AVX TPSD107K010 1 10 100 200 ? COILTRONICS CTX100-4 LOAD CURRENT (mA) 1174 TA02 1174fe 1 EFFICIENCY (%) U ULTC1174 LTC1174-3.3/LTC1174-5 ABSOLUTE AXI U RATI GS (Note 1) (Voltage Referred to GND Pin) Operating Temperature Range Input Supply Voltage (Pin 6) LTC1174CX ............................................ 0?C to 70?C LTC1174 ........................................... ?0.3V to 13.5V LTC1174IX ........................................ ? 40?C to 85?C LTC1174HV ...................................... ?0.3V to 18.5V Junction Temperature (Note 2)............................ 125?C Switch Current (Pin 5) .............................................. 1A Storage Temperature Range ................ ?65?C to 150?C Switch Voltage (Pin 5) Lead Temperature (Soldering, 10 sec)................. 300?C LTC1174 ................................................. V ? 13.5V IN LTC1174HV ............................................ V ? 18.5V IN UUW PACKAGE/ORDER I FOR ATIO TOP VIEW TOP VIEW V (V *) 1 8 SHUTDOWN V (V *) 1 8 SHUTDOWN OUT FB OUT FB LB 2 7 I LB 2 I OUT PGM 7 OUT PGM LB V 3 6 LB 3 6 V IN IN IN IN GND SW GND SW 4 5 4 5 S8 PACKAGE N8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD PDIP * ADJUSTABLE OUTPUT VERSION * ADJUSTABLE OUTPUT VERSION T = 125?C, ? = 150?C/W T = 125?C, ? = 110?C/W JMAX JA JMAX JA ORDER PART NUMBER ORDER PART NUMBER S8 PART MARKING LTC1174CN8 LTC1174CS8 1174 LTC1174CN8-3.3 LTC1174CS8-3.3 117433 LTC1174CN8-5 LTC1174CS8-5 117450 LTC1174IN8 LTC1174IS8 1174I LTC1174HVCN8 LTC1174HVCS8 1174H LTC1174HVCN8-3.3 LTC1174HVCS8-3.3 1174H3 LTC1174HVCN8-5 LTC1174HVCS8-5 1174H5 LTC1174HVIS8 1174HI Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The ? denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25?C. V = 9V, V = V , I = 0V, unless otherwise noted. A IN SHUTDOWN IN PGM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I Feedback Current LTC1174/LTC1174HV 1 ?A FB V Feedback Voltage LTC1174/LTC1174HV ? 1.20 1.25 1.30 V FB V Regulated Output Voltage LTC1174-3.3/LTC1174HV-3.3 ? 3.14 3.30 3.46 V OUT LTC1174-5/LTC1174V-5 ? 4.75 5.00 5.25 V ?V Output Voltage Line Regulation V = 6V to 12V, I = 100mA, I = V (Note 3) 10 70 mV OUT IN LOAD PGM IN 1174fe 2 U WWWLTC1174 LTC1174-3.3/LTC1174-5 High Efficiency Step-Down and Inverting DC/DC Converter FEATURES DESCRIPTIO ? ? High Efficiency: Up to 94% The LTC 1174 is a simple current mode DC/DC converter ? Peak Inductor Current Independent of ideally suited for 9V to 5V, 5V to 3.3V or 5V to ?5V Inductor Value operation. With an internal 0.9? switch (at a supply ? Short-Circuit Protection voltage of 9V), the LTC1174 requires only four external ? Optimized for 5V to ?5V Applications components to construct a complete high efficiency ? Wide V Range: 4V to 18.5V DC/DC converter. IN ? Low Dropout Operation Under a no load condition the LTC1174 draws only 130?A. ? Low-Battery Detector In shutdown, it draws a mere 1?A making this converter ? Pin Selectable Current Limit ideal for current sensitive applications. In dropout, the ? Internal 0.9 ? Power Switch: V = 9V IN internal P-channel MOSFET switch is turned on continu- ? Only Four External Components Required ously allowing the user to maximize the life of the battery ? 130?A Standby Current source. ? Active Low Micropower Shutdown The maximum inductor current of the LTC1174 family is U pin selectable to either 340mA or 600mA, optimizing APPLICATIO S efficiency for a wide range of applications. Operation up to ? Distributed Power Systems 200kHz permits the use of small surface mount inductors ? Step-Down Converters and capacitors. ? Inverting Converters For applications requiring higher output current or ultra- ? Memory Backup Supply high efficiency, see the LTC1148 data sheet. ? Portable Instruments , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ? Battery-Powered Equipment All other trademarks are the property of their respective owners. TYPICAL APPLICATIO High Efficiency Step-Down Converter LTC1174-5 Efficiency 100 V IN 9V 15?F* 95 + 6 V = 6V 25V IN V IN ?3 3 8 90 LB SHUTDOWN IN V = 9V IN 2 1 LB V OUT OUT 85 7 5 5V I SW PGM ? 175mA 100?H LTC1174-5 + 80 100?F** GND 1N5818 10V L = 100?H 4 75 V = 5V OUT 1174 TA01 I = 0V PGM * (3) AVX TPSD156K025 70 ** AVX TPSD107K010 1 10 100 200 ? COILTRONICS CTX100-4 LOAD CURRENT (mA) 1174 TA02 1174fe 1 EFFICIENCY (%) U ULTC1174 LTC1174-3.3/LTC1174-5 High Efficiency Step-Down and Inverting DC/DC Converter FEATURES DESCRIPTIO ? ? High Efficiency: Up to 94% The LTC 1174 is a simple current mode DC/DC converter ? Peak Inductor Current Independent of ideally suited for 9V to 5V, 5V to 3.3V or 5V to ?5V Inductor Value operation. With an internal 0.9? switch (at a supply ? Short-Circuit Protection voltage of 9V), the LTC1174 requires only four external ? Optimized for 5V to ?5V Applications components to construct a complete high efficiency ? Wide V Range: 4V to 18.5V DC/DC converter. IN ? Low Dropout Operation Under a no load condition the LTC1174 draws only 130?A. ? Low-Battery Detector In shutdown, it draws a mere 1?A making this converter ? Pin Selectable Current Limit ideal for current sensitive applications. In dropout, the ? Internal 0.9 ? Power Switch: V = 9V IN internal P-channel MOSFET switch is turned on continu- ? Only Four External Components Required ously allowing the user to maximize the life of the battery ? 130?A Standby Current source. ? Active Low Micropower Shutdown The maximum inductor current of the LTC1174 family is U pin selectable to either 340mA or 600mA, optimizing APPLICATIO S efficiency for a wide range of applications. Operation up to ? Distributed Power Systems 200kHz permits the use of small surface mount inductors ? Step-Down Converters and capacitors. ? Inverting Converters For applications requiring higher output current or ultra- ? Memory Backup Supply high efficiency, see the LTC1148 data sheet. ? Portable Instruments , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. ? Battery-Powered Equipment All other trademarks are the property of their respective owners. TYPICAL APPLICATIO High Efficiency Step-Down Converter LTC1174-5 Efficiency 100 V IN 9V 15?F* 95 + 6 V = 6V 25V IN V IN ?3 3 8 90 LB SHUTDOWN IN V = 9V IN 2 1 LB V OUT OUT 85 7 5 5V I SW PGM ? 175mA 100?H LTC1174-5 + 80 100?F** GND 1N5818 10V L = 100?H 4 75 V = 5V OUT 1174 TA01 I = 0V PGM * (3) AVX TPSD156K025 70 ** AVX TPSD107K010 1 10 100 200 ? COILTRONICS CTX100-4 LOAD CURRENT (mA) 1174 TA02 1174fe 1 EFFICIENCY (%) U ULTC1174 LTC1174-3.3/LTC1174-5 ABSOLUTE AXI U RATI GS (Note 1) (Voltage Referred to GND Pin) Operating Temperature Range Input Supply Voltage (Pin 6) LTC1174CX ............................................ 0?C to 70?C LTC1174 ........................................... ?0.3V to 13.5V LTC1174IX ........................................ ? 40?C to 85?C LTC1174HV ...................................... ?0.3V to 18.5V Junction Temperature (Note 2)............................ 125?C Switch Current (Pin 5) .............................................. 1A Storage Temperature Range ................ ?65?C to 150?C Switch Voltage (Pin 5) Lead Temperature (Soldering, 10 sec)................. 300?C LTC1174 ................................................. V ? 13.5V IN LTC1174HV ............................................ V ? 18.5V IN UUW PACKAGE/ORDER I FOR ATIO TOP VIEW TOP VIEW V (V *) 1 8 SHUTDOWN V (V *) 1 8 SHUTDOWN OUT FB OUT FB LB 2 7 I LB 2 I OUT PGM 7 OUT PGM LB V 3 6 LB 3 6 V IN IN IN IN GND SW GND SW 4 5 4 5 S8 PACKAGE N8 PACKAGE 8-LEAD PLASTIC SO 8-LEAD PDIP * ADJUSTABLE OUTPUT VERSION * ADJUSTABLE OUTPUT VERSION T = 125?C, ? = 150?C/W T = 125?C, ? = 110?C/W JMAX JA JMAX JA ORDER PART NUMBER ORDER PART NUMBER S8 PART MARKING LTC1174CN8 LTC1174CS8 1174 LTC1174CN8-3.3 LTC1174CS8-3.3 117433 LTC1174CN8-5 LTC1174CS8-5 117450 LTC1174IN8 LTC1174IS8 1174I LTC1174HVCN8 LTC1174HVCS8 1174H LTC1174HVCN8-3.3 LTC1174HVCS8-3.3 1174H3 LTC1174HVCN8-5 LTC1174HVCS8-5 1174H5 LTC1174HVIS8 1174HI Order Options Tape and Reel: Add #TR Lead Free: Add #PBF Lead Free Tape and Reel: Add #TRPBF Lead Free Part Marking: http://www.linear.com/leadfree/ Consult LTC Marketing for parts specified with wider operating temperature ranges. ELECTRICAL CHARACTERISTICS The ? denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25?C. V = 9V, V = V , I = 0V, unless otherwise noted. A IN SHUTDOWN IN PGM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS I Feedback Current LTC1174/LTC1174HV 1 ?A FB V Feedback Voltage LTC1174/LTC1174HV ? 1.20 1.25 1.30 V FB V Regulated Output Voltage LTC1174-3.3/LTC1174HV-3.3 ? 3.14 3.30 3.46 V OUT LTC1174-5/LTC1174V-5 ? 4.75 5.00 5.25 V ?V Output Voltage Line Regulation V = 6V to 12V, I = 100mA, I = V (Note 3) 10 70 mV OUT IN LOAD PGM IN 1174fe 2 U WWWLTC1174 LTC1174-3.3/LTC1174-5 ELECTRICAL CHARACTERISTICS The ? denotes specifications which apply over the full operating temperature range, otherwise specifications are at T = 25?C. V = 9V, V = V , I = 0V, unless otherwise noted. A IN SHUTDOWN IN PGM SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Output Voltage Load Regulation LTC1174-3.3 (Note 3) 20mA < I < 175mA, I = 0V ?5 ?70 mV LOAD PGM 20mA < I < 400mA, I = V ?45 ?70 mV LOAD PGM IN LTC1174-5 (Note 3) 20mA < I < 175mA, I = 0V ?5 ?70 mV LOAD PGM 20mA < I < 400mA, I = V ?50 ?70 mV LOAD PGM IN I Input DC Supply Current (Note 4) Active Mode Q LTC1174: 4V < V < 12V, I = 0V 450 600 ?A IN PGM LTC1174HV: 4V < V < 16V, I = 0V 450 600 ?A IN PGM Sleep Mode LTC1174: 4V < V < 12V 130 180 ?A IN LTC1174HV: 4V < V < 16V 130 180 ?A IN SHUTDOWN (Note 4) LTC1174: V = 0V, 4V < V < 12V 1 10 ?A SHUTDOWN IN LTC1174HV: V = 0V, 4V < V < 16V 2 25 ?A SHUTDOWN IN V Low-Battery Trip Point 1.25 1.4 V LBTRIP I Current into Pin 3 0.5 ?A LBIN I Current Sunk by Pin 2 LTC1174: V = 0.4V 1.0 1.2 1.5 mA LBOUT LBOUT LTC1174HV: V = 0.4V 0.6 0.8 1.5 mA LBOUT V Comparator Hysteresis LTC1174/LTC1174HV 7.5 15 30 mV HYST I Current Limit I = V , V = 0V ? 0.54 0.60 0.83 A PEAK PGM IN OUT = 0V, V = 0V ? 0.27 0.34 0.53 A I PGM OUT R ON Resistance of Switch LTC1174 ? 0.75 1.30 ? ON LTC1174HV ? 0.90 1.55 ? t Switch Off-Time (Note 6) V at Regulated Value 3 4 5 ?s OFF OUT V SHUTDOWN Pin High Minimum Voltage at Pin 8 for Device to Be Active 1.2 V IH V SHUTDOWN Pin Low Maximum Voltage at Pin 8 for Device to Be in Shutdown 0.75 V IL I SHUTDOWN Pin Input Current LTC1174: V = 12V 0.5 ?A IH SHUTDOWN LTC1174HV: V = 16V 2.0 ?A SHUTDOWN I SHUTDOWN Pin Input Current 0 = V = 0.8V 0.5 ?A IL SHUTDOWN The ? denotes specifications which apply over the full operating temperature range, otherwise specifications are at ?40?C = T = 85?C. LTC1174I and LTC1174HVI Only. A SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Feedback Voltage LTC1174I/LTC1174HVI ? 1.18 1.25 1.31 V FB I Current Sunk by Pin 2 V = 0.4V (LTC1174I) ? 0.75 1.2 2.0 mA LBOUT LBOUT V = 0.4V (LTC1174HVI) ? 0.50 0.8 1.6 mA LBOUT I Current Limit I = V , V = 0V (LTC1174I) ? 0.54 0.60 0.84 A PEAK PGM IN OUT I = 0V, V = 0V (LTC1174I) 0.34 A PGM OUT I = V , V = 0V (LTC1174HVI) ? 0.5 0.60 0.86 A PGM IN OUT I = 0V, V = 0V (LTC1174HVI) 0.34 A PGM OUT t Switch Off-Time (Note 6) V at Regulated Value (LTC1174I) ? 2.0 4 6.0 ?s OFF OUT V at Regulated Value (LTC1174HVI) ? 1.8 4 6.2 ?s OUT R Switch On Resistance LTC1174I/LTC1174HVI ? 0.9 1.7 ? ON Note 1: Stresses beyond those listed under Absolute Maximum Ratings Note 2: T is calculated from the ambient temperature T and power J A may cause permanent damage to the device. Exposure to any Absolute dissipation P according to the following formulas: D Maximum Rating condition for extended periods may affect device LTC1174CN8, LTC1174CN8-3.3, LTC1174CN8-5: reliability and lifetime. T = T + (P ? 110?C/W) J A D LTC1174CS8, LTC1174CS8-3.3, LTC1174CS8-5: T = T + (P ? 150?C/W) J A D 1174fe 3

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