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LTC3122EMSE#PBF

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Switching Voltage Regulators 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect
Manufacturer: Analog Devices



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LTC3122EMSE#PBF
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LTC3122EMSE#PBF
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LTC3122EMSE#PBF
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Manufacturer
Analog Devices
Product Category
Switching Voltage Regulators
RoHS - XON
Y Icon ROHS
Mounting Style
Smd/Smt
Output Voltage
2.2 v to 15 V
Output Current
2.5 A
Number of Outputs
1 Output
Input Voltage MAX
5.5 V
Topology
Boost
Input Voltage MIN
0.5 V
Switching Frequency
1 Mhz
Minimum Operating Temperature
- 40 C
Maximum Operating Temperature
+125 C
Series
Ltc3122
Packaging
Tube
Input Voltage
0.5 v to 5.5 V
Package / Case
MSOP-12
Quiescent Current
25 uA
Type
Synchronous Dc/Dc Converter
Brand
Analog Devices
Shutdown
Shutdown
Operating Supply Current
0.025 mA
Product Type
Switching Voltage Regulators
Factory Pack Quantity :
37
Subcategory
Pmic - Power Management Ics
Cnhts
8542390000
Hts Code
8542390001
Mxhts
85423901
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Mfr. Part No.
Description
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POWER LOSS (W) LTC3122 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect Fea T Descrip T ? n V Range: 1.8V to 5.5V, 500mV After Start-Up The LTC 3122 is a synchronous step-up DC/DC converter IN n Output Voltage Range: 2.2V to 15V with true output disconnect and inrush current limiting. The n 800mA Output Current for V = 5V and V = 12V 2.5A current limit along with the ability to program output IN OUT n Output Disconnects from Input When Shut Down voltages up to 15V makes the LTC3122 well suited for a n Synchronous Rectification: Up to 95% Efficiency variety of demanding applications. Once started, opera- n Inrush Current Limit tion will continue with inputs down to 500mV, extending n Up to 3MHz Adjustable Switching Frequency runtime in many applications. Synchronizable to External Clock The LTC3122 features output disconnect in shutdown, ? n Selectable Burst Mode Operation: 25?A I Q dramatically reducing input power drain and enabling n Output Overvoltage Protection V to completely discharge. Adjustable PWM switching OUT n Soft-Start from 100kHz to 3MHz optimizes applications for highest n <1?A I in Shutdown Q efficiency or smallest solution footprint. The oscillator n 12-Lead, 3mm ? 4mm ? 0.75mm Thermally can also be synchronized to an external clock for noise Enhanced DFN and MSOP Packages sensitive applications. Selectable Burst Mode operation reduces quiescent current to 25?A, ensuring high efficiency a T across the entire load range. An internal soft-start limits inrush current during start-up. n RF Power n Piezo Actuators Other features include a <1?A shutdown current and ro- n Small DC Motors bust protection under short-circuit, thermal overload, and n 12V Analog Rail From Battery, 5V, or Backup Capacitor output overvoltage conditions. The LTC3122 is offered in both a low profile 12-lead (3mm ? 4mm ? 0.75 mm) DFN L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the package and a 12-lead thermally enhanced MSOP package. property of their respective owners. Typical a T 5V to 12V Synchronous Boost Converter with Output Disconnect Efficiency Curve 100 10 3.3?H V IN Burst Mode 5V 90 OPERATION SW 80 V OUT V V 12V IN OUT 70 1 800mA LTC3122 PWM SD OFF ON 100nF 60 4.7?F BURST PWM PWM/SYNC CAP 50 1.02M 40 RT FB 22?F 0.1 30 PWM POWER LOSS V V 113k CC C 20 SGND PGND 210k 57.6k 10 10pF 4.7?F 390pF 0 0.01 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3122 TA01b 3122 TA01a 3122fa 1 For more information www.linear.com/LTC3122 EFFICIENCY (%) ion pplica ions pplica ion uresPOWER LOSS (W) LTC3122 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect Fea T Descrip T ? n V Range: 1.8V to 5.5V, 500mV After Start-Up The LTC 3122 is a synchronous step-up DC/DC converter IN n Output Voltage Range: 2.2V to 15V with true output disconnect and inrush current limiting. The n 800mA Output Current for V = 5V and V = 12V 2.5A current limit along with the ability to program output IN OUT n Output Disconnects from Input When Shut Down voltages up to 15V makes the LTC3122 well suited for a n Synchronous Rectification: Up to 95% Efficiency variety of demanding applications. Once started, opera- n Inrush Current Limit tion will continue with inputs down to 500mV, extending n Up to 3MHz Adjustable Switching Frequency runtime in many applications. Synchronizable to External Clock The LTC3122 features output disconnect in shutdown, ? n Selectable Burst Mode Operation: 25?A I Q dramatically reducing input power drain and enabling n Output Overvoltage Protection V to completely discharge. Adjustable PWM switching OUT n Soft-Start from 100kHz to 3MHz optimizes applications for highest n <1?A I in Shutdown Q efficiency or smallest solution footprint. The oscillator n 12-Lead, 3mm ? 4mm ? 0.75mm Thermally can also be synchronized to an external clock for noise Enhanced DFN and MSOP Packages sensitive applications. Selectable Burst Mode operation reduces quiescent current to 25?A, ensuring high efficiency a T across the entire load range. An internal soft-start limits inrush current during start-up. n RF Power n Piezo Actuators Other features include a <1?A shutdown current and ro- n Small DC Motors bust protection under short-circuit, thermal overload, and n 12V Analog Rail From Battery, 5V, or Backup Capacitor output overvoltage conditions. The LTC3122 is offered in both a low profile 12-lead (3mm ? 4mm ? 0.75 mm) DFN L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the package and a 12-lead thermally enhanced MSOP package. property of their respective owners. Typical a T 5V to 12V Synchronous Boost Converter with Output Disconnect Efficiency Curve 100 10 3.3?H V IN Burst Mode 5V 90 OPERATION SW 80 V OUT V V 12V IN OUT 70 1 800mA LTC3122 PWM SD OFF ON 100nF 60 4.7?F BURST PWM PWM/SYNC CAP 50 1.02M 40 RT FB 22?F 0.1 30 PWM POWER LOSS V V 113k CC C 20 SGND PGND 210k 57.6k 10 10pF 4.7?F 390pF 0 0.01 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3122 TA01b 3122 TA01a 3122fa 1 For more information www.linear.com/LTC3122 EFFICIENCY (%) ion pplica ions pplica ion uresLTC3122 a Te Maxi Mu M r a T (Note 1) V Voltage .................................................. ?0.3V to 6V All Other Pins ............................................... ?0.3V to 6V IN V Voltage ............................................ ?0.3V to 18V Operating Junction Temperature Range (Notes 3, 4) OUT SW Voltage (Note 2) .................................. ?0.3V to 18V LTC3122E/LTC3122I .......................... ?40?C to 125?C SW Voltage (Pulsed < 100ns) (Note 2) ....... ?0.3V to 19V LTC3122H .......................................... ?40?C to 150?C V , RT Voltage .......................................... ?0.3V to V Storage Temperature Range .................. ?65?C to 150?C C CC CAP Voltage MSE Lead Temperature (Soldering, 10sec) ...........300?C V < 5.7V ............................?0.3V to (V + 0.3V) OUT OUT 5.7V ? V ? 11.7V...... (V ? 6V) to (V + 0.3V) OUT OUT OUT V > 11.7V .................................(V ? 6V) to 12V OUT OUT p in c F T TOP VIEW TOP VIEW SW 1 12 CAP SW 1 12 CAP PGND 2 11 V OUT PGND 2 11 V OUT V 3 10 SGND IN 13 V 3 13 10 SGND IN PGND PGND PWM/SYNC 4 9 SD PWM/SYNC 4 9 SD 5 V 8 FB CC V 5 8 FB CC RT 6 7 V C RT 6 7 V C MSE PACKAGE 12-LEAD PLASTIC MSOP DE PACKAGE T = 150?C, ? = 40?C/W (NOTE 5), ? = 10?C/W JMAX JA JC 12-LEAD (4mm ? 3mm) PLASTIC DFN EXPOSED PAD (PIN 13) IS PGND, T = 125?C, ? = 43?C/W (NOTE 5), ? = 5?C/W JMAX JA JC MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE EXPOSED PAD (PIN 13) IS PGND, MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE o r Der i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3122EDE#PBF LTC3122EDE#TRPBF 3122 12-Lead (4mm ? 3mm) Plastic DFN ?40?C to 125?C LTC3122IDE#PBF LTC3122IDE#TRPBF 3122 12-Lead (4mm ? 3mm) Plastic DFN ?40?C to 125?C LTC3122EMSE#PBF LTC3122EMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 125?C LTC3122IMSE#PBF LTC3122IMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 125?C LTC3122HMSE#PBF LTC3122HMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 150?C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. 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/ 3122fa 2 For more information www.linear.com/LTC3122 ion or ion igura on ings bsoluPOWER LOSS (W) LTC3122 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect Fea T Descrip T ? n V Range: 1.8V to 5.5V, 500mV After Start-Up The LTC 3122 is a synchronous step-up DC/DC converter IN n Output Voltage Range: 2.2V to 15V with true output disconnect and inrush current limiting. The n 800mA Output Current for V = 5V and V = 12V 2.5A current limit along with the ability to program output IN OUT n Output Disconnects from Input When Shut Down voltages up to 15V makes the LTC3122 well suited for a n Synchronous Rectification: Up to 95% Efficiency variety of demanding applications. Once started, opera- n Inrush Current Limit tion will continue with inputs down to 500mV, extending n Up to 3MHz Adjustable Switching Frequency runtime in many applications. Synchronizable to External Clock The LTC3122 features output disconnect in shutdown, ? n Selectable Burst Mode Operation: 25?A I Q dramatically reducing input power drain and enabling n Output Overvoltage Protection V to completely discharge. Adjustable PWM switching OUT n Soft-Start from 100kHz to 3MHz optimizes applications for highest n <1?A I in Shutdown Q efficiency or smallest solution footprint. The oscillator n 12-Lead, 3mm ? 4mm ? 0.75mm Thermally can also be synchronized to an external clock for noise Enhanced DFN and MSOP Packages sensitive applications. Selectable Burst Mode operation reduces quiescent current to 25?A, ensuring high efficiency a T across the entire load range. An internal soft-start limits inrush current during start-up. n RF Power n Piezo Actuators Other features include a <1?A shutdown current and ro- n Small DC Motors bust protection under short-circuit, thermal overload, and n 12V Analog Rail From Battery, 5V, or Backup Capacitor output overvoltage conditions. The LTC3122 is offered in both a low profile 12-lead (3mm ? 4mm ? 0.75 mm) DFN L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the package and a 12-lead thermally enhanced MSOP package. property of their respective owners. Typical a T 5V to 12V Synchronous Boost Converter with Output Disconnect Efficiency Curve 100 10 3.3?H V IN Burst Mode 5V 90 OPERATION SW 80 V OUT V V 12V IN OUT 70 1 800mA LTC3122 PWM SD OFF ON 100nF 60 4.7?F BURST PWM PWM/SYNC CAP 50 1.02M 40 RT FB 22?F 0.1 30 PWM POWER LOSS V V 113k CC C 20 SGND PGND 210k 57.6k 10 10pF 4.7?F 390pF 0 0.01 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3122 TA01b 3122 TA01a 3122fa 1 For more information www.linear.com/LTC3122 EFFICIENCY (%) ion pplica ions pplica ion uresPOWER LOSS (W) LTC3122 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect Fea T Descrip T ? n V Range: 1.8V to 5.5V, 500mV After Start-Up The LTC 3122 is a synchronous step-up DC/DC converter IN n Output Voltage Range: 2.2V to 15V with true output disconnect and inrush current limiting. The n 800mA Output Current for V = 5V and V = 12V 2.5A current limit along with the ability to program output IN OUT n Output Disconnects from Input When Shut Down voltages up to 15V makes the LTC3122 well suited for a n Synchronous Rectification: Up to 95% Efficiency variety of demanding applications. Once started, opera- n Inrush Current Limit tion will continue with inputs down to 500mV, extending n Up to 3MHz Adjustable Switching Frequency runtime in many applications. Synchronizable to External Clock The LTC3122 features output disconnect in shutdown, ? n Selectable Burst Mode Operation: 25?A I Q dramatically reducing input power drain and enabling n Output Overvoltage Protection V to completely discharge. Adjustable PWM switching OUT n Soft-Start from 100kHz to 3MHz optimizes applications for highest n <1?A I in Shutdown Q efficiency or smallest solution footprint. The oscillator n 12-Lead, 3mm ? 4mm ? 0.75mm Thermally can also be synchronized to an external clock for noise Enhanced DFN and MSOP Packages sensitive applications. Selectable Burst Mode operation reduces quiescent current to 25?A, ensuring high efficiency a T across the entire load range. An internal soft-start limits inrush current during start-up. n RF Power n Piezo Actuators Other features include a <1?A shutdown current and ro- n Small DC Motors bust protection under short-circuit, thermal overload, and n 12V Analog Rail From Battery, 5V, or Backup Capacitor output overvoltage conditions. The LTC3122 is offered in both a low profile 12-lead (3mm ? 4mm ? 0.75 mm) DFN L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the package and a 12-lead thermally enhanced MSOP package. property of their respective owners. Typical a T 5V to 12V Synchronous Boost Converter with Output Disconnect Efficiency Curve 100 10 3.3?H V IN Burst Mode 5V 90 OPERATION SW 80 V OUT V V 12V IN OUT 70 1 800mA LTC3122 PWM SD OFF ON 100nF 60 4.7?F BURST PWM PWM/SYNC CAP 50 1.02M 40 RT FB 22?F 0.1 30 PWM POWER LOSS V V 113k CC C 20 SGND PGND 210k 57.6k 10 10pF 4.7?F 390pF 0 0.01 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3122 TA01b 3122 TA01a 3122fa 1 For more information www.linear.com/LTC3122 EFFICIENCY (%) ion pplica ions pplica ion uresLTC3122 a Te Maxi Mu M r a T (Note 1) V Voltage .................................................. ?0.3V to 6V All Other Pins ............................................... ?0.3V to 6V IN V Voltage ............................................ ?0.3V to 18V Operating Junction Temperature Range (Notes 3, 4) OUT SW Voltage (Note 2) .................................. ?0.3V to 18V LTC3122E/LTC3122I .......................... ?40?C to 125?C SW Voltage (Pulsed < 100ns) (Note 2) ....... ?0.3V to 19V LTC3122H .......................................... ?40?C to 150?C V , RT Voltage .......................................... ?0.3V to V Storage Temperature Range .................. ?65?C to 150?C C CC CAP Voltage MSE Lead Temperature (Soldering, 10sec) ...........300?C V < 5.7V ............................?0.3V to (V + 0.3V) OUT OUT 5.7V = V = 11.7V...... (V ? 6V) to (V + 0.3V) OUT OUT OUT V > 11.7V .................................(V ? 6V) to 12V OUT OUT p in c F T TOP VIEW TOP VIEW SW 1 12 CAP SW 1 12 CAP PGND 2 11 V OUT PGND 2 11 V OUT V 3 10 SGND IN 13 V 3 13 10 SGND IN PGND PGND PWM/SYNC 4 9 SD PWM/SYNC 4 9 SD 5 V 8 FB CC V 5 8 FB CC RT 6 7 V C RT 6 7 V C MSE PACKAGE 12-LEAD PLASTIC MSOP DE PACKAGE T = 150?C, ? = 40?C/W (NOTE 5), ? = 10?C/W JMAX JA JC 12-LEAD (4mm ? 3mm) PLASTIC DFN EXPOSED PAD (PIN 13) IS PGND, T = 125?C, ? = 43?C/W (NOTE 5), ? = 5?C/W JMAX JA JC MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE EXPOSED PAD (PIN 13) IS PGND, MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE o r Der i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3122EDE#PBF LTC3122EDE#TRPBF 3122 12-Lead (4mm ? 3mm) Plastic DFN ?40?C to 125?C LTC3122IDE#PBF LTC3122IDE#TRPBF 3122 12-Lead (4mm ? 3mm) Plastic DFN ?40?C to 125?C LTC3122EMSE#PBF LTC3122EMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 125?C LTC3122IMSE#PBF LTC3122IMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 125?C LTC3122HMSE#PBF LTC3122HMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 150?C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. 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/ 3122fa 2 For more information www.linear.com/LTC3122 ion or ion igura on ings bsoluLTC3122 e Trical c T TThe l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T = 25?C (Note 3). V = 3.6V, V = 12V, RT = 57.6k unless otherwise noted. A IN OUT PARAMETER CONDITIONS MIN. TYP MAX UNITS Minimum Start-Up Voltage V = 0V l 1.7 1.8 V OUT l Input Voltage Range After V ? 2.2V 0.5 5.5 V OUT Output Voltage Adjust Range l 2.2 15 V l Feedback Voltage 1.178 1.202 1.225 V Feedback Input Current V = 1.4V 1 50 nA FB Quiescent Current, Shutdown V = 0V, V = 0V, Not Including Switch Leakage 0.01 1 ?A SD OUT Quiescent Current, Active V = 0V, Measured On V , Non-Switching 500 700 ?A C IN Quiescent Current, Burst Measured on V , V > 1.4V 25 40 ?A IN FB Measured on V , V > 1.4V 10 20 ?A OUT FB l N-channel MOSFET Switch Leakage Current V = 15V, V = 15V, V = 0V 0.1 30 ?A SW OUT C P-channel MOSFET Switch Leakage Current V = 0V, V = 15V, V = 0V l 0.1 70 ?A SW OUT SD N-channel MOSFET Switch On-Resistance 0.121 ? P-channel MOSFET Switch On-Resistance 0.188 ? N-channel MOSFET Current Limit l 2.5 3.5 4.5 A l Maximum Duty Cycle V = 1.0V 90 94 % FB Minimum Duty Cycle V = 1.4V l 0 % FB l Switching Frequency 0.85 1 1.15 MHz SYNC Frequency Range l 0.1 3 MHz l PWM/SYNC Input High 0.9 ?V V CC PWM/SYNC Input Low l 0.1?V V CC PWM/SYNC Input Current V = 5.5V 0.01 1 ?A PWM/SYNC CAP Clamp Voltage V > 6.1V, Referenced to V ?5.2 ?5.6 ?6.0 V OUT OUT V Regulation Voltage V < 2.8V, V > 5V 4 4.25 4.5 V CC IN OUT Error Amplifier Transconductance l 70 95 120 ?S Error Amplifier Output Current ?25 ?A Soft-Start Time 10 ms SD Input High l 1.6 V l SD Input Low 0.25 V SD Input Current V = 5.5V 1 2 ?A SD Note 1: Stresses beyond those listed under Absolute Maximum Ratings temperature range. The LTC3122H is guaranteed to meet specifications may cause permanent damage to the device. Exposure to any Absolute over the full ?40?C to 150?C operating junction range. The junction Maximum Rating condition for extended periods may affect device temperature (T in ?C) is calculated from the ambient temperature (T in J A reliability and lifetime. ?C) and power dissipation (P in Watts) according to the formula: T = T D J A + (P ? ? ) where ? is the thermal impedance of the package. Note 2: Voltage transients on the SW pin beyond the DC limit specified in D JA JA the Absolute Maximum Ratings are non-disruptive to normal operations Note 4: The LTC3122 includes overtemperature protection that is intended when using good layout practices, as shown on the demo board or to protect the device during momentary overload conditions. Junction described in the data sheet or application notes. temperature will exceed 150?C when overtemperature shutdown is active. Continuous operation above the specified maximum operating junction Note 3: The LTC3122 is tested under pulsed load conditions such that temperature may result in device degradation or failure. T ? T . The LTC3122E is guaranteed to meet performance specifications A J from 0?C to 85?C. Specifications over the ?40?C to 125?C operating Note 5: Failure to solder the exposed backside of the package to the PC junction temperature range are assured by design, characterization and board ground plane will result in a thermal impedance much higher than correlation with statistical process controls. The LTC3122I is guaranteed the rated package specifications. to meet specifications over the full ?40?C to 125?C operating junction 3122fa 3 For more information www.linear.com/LTC3122 ics eris harac lecPOWER LOSS (W) LTC3122 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect Fea T Descrip T ? n V Range: 1.8V to 5.5V, 500mV After Start-Up The LTC 3122 is a synchronous step-up DC/DC converter IN n Output Voltage Range: 2.2V to 15V with true output disconnect and inrush current limiting. The n 800mA Output Current for V = 5V and V = 12V 2.5A current limit along with the ability to program output IN OUT n Output Disconnects from Input When Shut Down voltages up to 15V makes the LTC3122 well suited for a n Synchronous Rectification: Up to 95% Efficiency variety of demanding applications. Once started, opera- n Inrush Current Limit tion will continue with inputs down to 500mV, extending n Up to 3MHz Adjustable Switching Frequency runtime in many applications. Synchronizable to External Clock The LTC3122 features output disconnect in shutdown, ? n Selectable Burst Mode Operation: 25?A I Q dramatically reducing input power drain and enabling n Output Overvoltage Protection V to completely discharge. Adjustable PWM switching OUT n Soft-Start from 100kHz to 3MHz optimizes applications for highest n <1?A I in Shutdown Q efficiency or smallest solution footprint. The oscillator n 12-Lead, 3mm ? 4mm ? 0.75mm Thermally can also be synchronized to an external clock for noise Enhanced DFN and MSOP Packages sensitive applications. Selectable Burst Mode operation reduces quiescent current to 25?A, ensuring high efficiency a T across the entire load range. An internal soft-start limits inrush current during start-up. n RF Power n Piezo Actuators Other features include a <1?A shutdown current and ro- n Small DC Motors bust protection under short-circuit, thermal overload, and n 12V Analog Rail From Battery, 5V, or Backup Capacitor output overvoltage conditions. The LTC3122 is offered in both a low profile 12-lead (3mm ? 4mm ? 0.75 mm) DFN L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the package and a 12-lead thermally enhanced MSOP package. property of their respective owners. Typical a T 5V to 12V Synchronous Boost Converter with Output Disconnect Efficiency Curve 100 10 3.3?H V IN Burst Mode 5V 90 OPERATION SW 80 V OUT V V 12V IN OUT 70 1 800mA LTC3122 PWM SD OFF ON 100nF 60 4.7?F BURST PWM PWM/SYNC CAP 50 1.02M 40 RT FB 22?F 0.1 30 PWM POWER LOSS V V 113k CC C 20 SGND PGND 210k 57.6k 10 10pF 4.7?F 390pF 0 0.01 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3122 TA01b 3122 TA01a 3122fa 1 For more information www.linear.com/LTC3122 EFFICIENCY (%) ion pplica ions pplica ion uresPOWER LOSS (W) LTC3122 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect Fea T Descrip T ? n V Range: 1.8V to 5.5V, 500mV After Start-Up The LTC 3122 is a synchronous step-up DC/DC converter IN n Output Voltage Range: 2.2V to 15V with true output disconnect and inrush current limiting. The n 800mA Output Current for V = 5V and V = 12V 2.5A current limit along with the ability to program output IN OUT n Output Disconnects from Input When Shut Down voltages up to 15V makes the LTC3122 well suited for a n Synchronous Rectification: Up to 95% Efficiency variety of demanding applications. Once started, opera- n Inrush Current Limit tion will continue with inputs down to 500mV, extending n Up to 3MHz Adjustable Switching Frequency runtime in many applications. Synchronizable to External Clock The LTC3122 features output disconnect in shutdown, ? n Selectable Burst Mode Operation: 25?A I Q dramatically reducing input power drain and enabling n Output Overvoltage Protection V to completely discharge. Adjustable PWM switching OUT n Soft-Start from 100kHz to 3MHz optimizes applications for highest n <1?A I in Shutdown Q efficiency or smallest solution footprint. The oscillator n 12-Lead, 3mm ? 4mm ? 0.75mm Thermally can also be synchronized to an external clock for noise Enhanced DFN and MSOP Packages sensitive applications. Selectable Burst Mode operation reduces quiescent current to 25?A, ensuring high efficiency a T across the entire load range. An internal soft-start limits inrush current during start-up. n RF Power n Piezo Actuators Other features include a <1?A shutdown current and ro- n Small DC Motors bust protection under short-circuit, thermal overload, and n 12V Analog Rail From Battery, 5V, or Backup Capacitor output overvoltage conditions. The LTC3122 is offered in both a low profile 12-lead (3mm ? 4mm ? 0.75 mm) DFN L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the package and a 12-lead thermally enhanced MSOP package. property of their respective owners. Typical a T 5V to 12V Synchronous Boost Converter with Output Disconnect Efficiency Curve 100 10 3.3?H V IN Burst Mode 5V 90 OPERATION SW 80 V OUT V V 12V IN OUT 70 1 800mA LTC3122 PWM SD OFF ON 100nF 60 4.7?F BURST PWM PWM/SYNC CAP 50 1.02M 40 RT FB 22?F 0.1 30 PWM POWER LOSS V V 113k CC C 20 SGND PGND 210k 57.6k 10 10pF 4.7?F 390pF 0 0.01 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3122 TA01b 3122 TA01a 3122fa 1 For more information www.linear.com/LTC3122 EFFICIENCY (%) ion pplica ions pplica ion uresLTC3122 a Te Maxi Mu M r a T (Note 1) V Voltage .................................................. ?0.3V to 6V All Other Pins ............................................... ?0.3V to 6V IN V Voltage ............................................ ?0.3V to 18V Operating Junction Temperature Range (Notes 3, 4) OUT SW Voltage (Note 2) .................................. ?0.3V to 18V LTC3122E/LTC3122I .......................... ?40?C to 125?C SW Voltage (Pulsed < 100ns) (Note 2) ....... ?0.3V to 19V LTC3122H .......................................... ?40?C to 150?C V , RT Voltage .......................................... ?0.3V to V Storage Temperature Range .................. ?65?C to 150?C C CC CAP Voltage MSE Lead Temperature (Soldering, 10sec) ...........300?C V < 5.7V ............................?0.3V to (V + 0.3V) OUT OUT 5.7V = V = 11.7V...... (V ? 6V) to (V + 0.3V) OUT OUT OUT V > 11.7V .................................(V ? 6V) to 12V OUT OUT p in c F T TOP VIEW TOP VIEW SW 1 12 CAP SW 1 12 CAP PGND 2 11 V OUT PGND 2 11 V OUT V 3 10 SGND IN 13 V 3 13 10 SGND IN PGND PGND PWM/SYNC 4 9 SD PWM/SYNC 4 9 SD 5 V 8 FB CC V 5 8 FB CC RT 6 7 V C RT 6 7 V C MSE PACKAGE 12-LEAD PLASTIC MSOP DE PACKAGE T = 150?C, ? = 40?C/W (NOTE 5), ? = 10?C/W JMAX JA JC 12-LEAD (4mm ? 3mm) PLASTIC DFN EXPOSED PAD (PIN 13) IS PGND, T = 125?C, ? = 43?C/W (NOTE 5), ? = 5?C/W JMAX JA JC MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE EXPOSED PAD (PIN 13) IS PGND, MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE o r Der i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3122EDE#PBF LTC3122EDE#TRPBF 3122 12-Lead (4mm ? 3mm) Plastic DFN ?40?C to 125?C LTC3122IDE#PBF LTC3122IDE#TRPBF 3122 12-Lead (4mm ? 3mm) Plastic DFN ?40?C to 125?C LTC3122EMSE#PBF LTC3122EMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 125?C LTC3122IMSE#PBF LTC3122IMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 125?C LTC3122HMSE#PBF LTC3122HMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 150?C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. 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/ 3122fa 2 For more information www.linear.com/LTC3122 ion or ion igura on ings bsoluPOWER LOSS (W) LTC3122 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect Fea T Descrip T ? n V Range: 1.8V to 5.5V, 500mV After Start-Up The LTC 3122 is a synchronous step-up DC/DC converter IN n Output Voltage Range: 2.2V to 15V with true output disconnect and inrush current limiting. The n 800mA Output Current for V = 5V and V = 12V 2.5A current limit along with the ability to program output IN OUT n Output Disconnects from Input When Shut Down voltages up to 15V makes the LTC3122 well suited for a n Synchronous Rectification: Up to 95% Efficiency variety of demanding applications. Once started, opera- n Inrush Current Limit tion will continue with inputs down to 500mV, extending n Up to 3MHz Adjustable Switching Frequency runtime in many applications. Synchronizable to External Clock The LTC3122 features output disconnect in shutdown, ? n Selectable Burst Mode Operation: 25?A I Q dramatically reducing input power drain and enabling n Output Overvoltage Protection V to completely discharge. Adjustable PWM switching OUT n Soft-Start from 100kHz to 3MHz optimizes applications for highest n <1?A I in Shutdown Q efficiency or smallest solution footprint. The oscillator n 12-Lead, 3mm ? 4mm ? 0.75mm Thermally can also be synchronized to an external clock for noise Enhanced DFN and MSOP Packages sensitive applications. Selectable Burst Mode operation reduces quiescent current to 25?A, ensuring high efficiency a T across the entire load range. An internal soft-start limits inrush current during start-up. n RF Power n Piezo Actuators Other features include a <1?A shutdown current and ro- n Small DC Motors bust protection under short-circuit, thermal overload, and n 12V Analog Rail From Battery, 5V, or Backup Capacitor output overvoltage conditions. The LTC3122 is offered in both a low profile 12-lead (3mm ? 4mm ? 0.75 mm) DFN L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the package and a 12-lead thermally enhanced MSOP package. property of their respective owners. Typical a T 5V to 12V Synchronous Boost Converter with Output Disconnect Efficiency Curve 100 10 3.3?H V IN Burst Mode 5V 90 OPERATION SW 80 V OUT V V 12V IN OUT 70 1 800mA LTC3122 PWM SD OFF ON 100nF 60 4.7?F BURST PWM PWM/SYNC CAP 50 1.02M 40 RT FB 22?F 0.1 30 PWM POWER LOSS V V 113k CC C 20 SGND PGND 210k 57.6k 10 10pF 4.7?F 390pF 0 0.01 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3122 TA01b 3122 TA01a 3122fa 1 For more information www.linear.com/LTC3122 EFFICIENCY (%) ion pplica ions pplica ion uresPOWER LOSS (W) LTC3122 15V, 2.5A Synchronous Step-Up DC/DC Converter with Output Disconnect Fea T Descrip T ? n V Range: 1.8V to 5.5V, 500mV After Start-Up The LTC 3122 is a synchronous step-up DC/DC converter IN n Output Voltage Range: 2.2V to 15V with true output disconnect and inrush current limiting. The n 800mA Output Current for V = 5V and V = 12V 2.5A current limit along with the ability to program output IN OUT n Output Disconnects from Input When Shut Down voltages up to 15V makes the LTC3122 well suited for a n Synchronous Rectification: Up to 95% Efficiency variety of demanding applications. Once started, opera- n Inrush Current Limit tion will continue with inputs down to 500mV, extending n Up to 3MHz Adjustable Switching Frequency runtime in many applications. Synchronizable to External Clock The LTC3122 features output disconnect in shutdown, ? n Selectable Burst Mode Operation: 25?A I Q dramatically reducing input power drain and enabling n Output Overvoltage Protection V to completely discharge. Adjustable PWM switching OUT n Soft-Start from 100kHz to 3MHz optimizes applications for highest n <1?A I in Shutdown Q efficiency or smallest solution footprint. The oscillator n 12-Lead, 3mm ? 4mm ? 0.75mm Thermally can also be synchronized to an external clock for noise Enhanced DFN and MSOP Packages sensitive applications. Selectable Burst Mode operation reduces quiescent current to 25?A, ensuring high efficiency a T across the entire load range. An internal soft-start limits inrush current during start-up. n RF Power n Piezo Actuators Other features include a <1?A shutdown current and ro- n Small DC Motors bust protection under short-circuit, thermal overload, and n 12V Analog Rail From Battery, 5V, or Backup Capacitor output overvoltage conditions. The LTC3122 is offered in both a low profile 12-lead (3mm ? 4mm ? 0.75 mm) DFN L, LT, LTC, LTM, Linear Technology, the Linear logo and Burst Mode are registered trademarks and ThinSOT is a trademark of Linear Technology Corporation. All other trademarks are the package and a 12-lead thermally enhanced MSOP package. property of their respective owners. Typical a T 5V to 12V Synchronous Boost Converter with Output Disconnect Efficiency Curve 100 10 3.3?H V IN Burst Mode 5V 90 OPERATION SW 80 V OUT V V 12V IN OUT 70 1 800mA LTC3122 PWM SD OFF ON 100nF 60 4.7?F BURST PWM PWM/SYNC CAP 50 1.02M 40 RT FB 22?F 0.1 30 PWM POWER LOSS V V 113k CC C 20 SGND PGND 210k 57.6k 10 10pF 4.7?F 390pF 0 0.01 0.01 0.1 1 10 100 1000 LOAD CURRENT (mA) 3122 TA01b 3122 TA01a 3122fa 1 For more information www.linear.com/LTC3122 EFFICIENCY (%) ion pplica ions pplica ion uresLTC3122 a Te Maxi Mu M r a T (Note 1) V Voltage .................................................. ?0.3V to 6V All Other Pins ............................................... ?0.3V to 6V IN V Voltage ............................................ ?0.3V to 18V Operating Junction Temperature Range (Notes 3, 4) OUT SW Voltage (Note 2) .................................. ?0.3V to 18V LTC3122E/LTC3122I .......................... ?40?C to 125?C SW Voltage (Pulsed < 100ns) (Note 2) ....... ?0.3V to 19V LTC3122H .......................................... ?40?C to 150?C V , RT Voltage .......................................... ?0.3V to V Storage Temperature Range .................. ?65?C to 150?C C CC CAP Voltage MSE Lead Temperature (Soldering, 10sec) ...........300?C V < 5.7V ............................?0.3V to (V + 0.3V) OUT OUT 5.7V = V = 11.7V...... (V ? 6V) to (V + 0.3V) OUT OUT OUT V > 11.7V .................................(V ? 6V) to 12V OUT OUT p in c F T TOP VIEW TOP VIEW SW 1 12 CAP SW 1 12 CAP PGND 2 11 V OUT PGND 2 11 V OUT V 3 10 SGND IN 13 V 3 13 10 SGND IN PGND PGND PWM/SYNC 4 9 SD PWM/SYNC 4 9 SD 5 V 8 FB CC V 5 8 FB CC RT 6 7 V C RT 6 7 V C MSE PACKAGE 12-LEAD PLASTIC MSOP DE PACKAGE T = 150?C, ? = 40?C/W (NOTE 5), ? = 10?C/W JMAX JA JC 12-LEAD (4mm ? 3mm) PLASTIC DFN EXPOSED PAD (PIN 13) IS PGND, T = 125?C, ? = 43?C/W (NOTE 5), ? = 5?C/W JMAX JA JC MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE EXPOSED PAD (PIN 13) IS PGND, MUST BE SOLDERED TO PCB FOR RATED THERMAL PERFORMANCE o r Der i n F Ma T LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTC3122EDE#PBF LTC3122EDE#TRPBF 3122 12-Lead (4mm ? 3mm) Plastic DFN ?40?C to 125?C LTC3122IDE#PBF LTC3122IDE#TRPBF 3122 12-Lead (4mm ? 3mm) Plastic DFN ?40?C to 125?C LTC3122EMSE#PBF LTC3122EMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 125?C LTC3122IMSE#PBF LTC3122IMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 125?C LTC3122HMSE#PBF LTC3122HMSE#TRPBF 3122 12-Lead Plastic MSOP ?40?C to 150?C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based finish parts. 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/ 3122fa 2 For more information www.linear.com/LTC3122 ion or ion igura on ings bsoluLTC3122 e Trical c T TThe l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T = 25?C (Note 3). V = 3.6V, V = 12V, RT = 57.6k unless otherwise noted. A IN OUT PARAMETER CONDITIONS MIN. TYP MAX UNITS Minimum Start-Up Voltage V = 0V l 1.7 1.8 V OUT l Input Voltage Range After V = 2.2V 0.5 5.5 V OUT Output Voltage Adjust Range l 2.2 15 V l Feedback Voltage 1.178 1.202 1.225 V Feedback Input Current V = 1.4V 1 50 nA FB Quiescent Current, Shutdown V = 0V, V = 0V, Not Including Switch Leakage 0.01 1 ?A SD OUT Quiescent Current, Active V = 0V, Measured On V , Non-Switching 500 700 ?A C IN Quiescent Current, Burst Measured on V , V > 1.4V 25 40 ?A IN FB Measured on V , V > 1.4V 10 20 ?A OUT FB l N-channel MOSFET Switch Leakage Current V = 15V, V = 15V, V = 0V 0.1 30 ?A SW OUT C P-channel MOSFET Switch Leakage Current V = 0V, V = 15V, V = 0V l 0.1 70 ?A SW OUT SD N-channel MOSFET Switch On-Resistance 0.121 O P-channel MOSFET Switch On-Resistance 0.188 O N-channel MOSFET Current Limit l 2.5 3.5 4.5 A l Maximum Duty Cycle V = 1.0V 90 94 % FB Minimum Duty Cycle V = 1.4V l 0 % FB l Switching Frequency 0.85 1 1.15 MHz SYNC Frequency Range l 0.1 3 MHz l PWM/SYNC Input High 0.9 ?V V CC PWM/SYNC Input Low l 0.1?V V CC PWM/SYNC Input Current V = 5.5V 0.01 1 ?A PWM/SYNC CAP Clamp Voltage V > 6.1V, Referenced to V ?5.2 ?5.6 ?6.0 V OUT OUT V Regulation Voltage V < 2.8V, V > 5V 4 4.25 4.5 V CC IN OUT Error Amplifier Transconductance l 70 95 120 ?S Error Amplifier Output Current ?25 ?A Soft-Start Time 10 ms SD Input High l 1.6 V l SD Input Low 0.25 V SD Input Current V = 5.5V 1 2 ?A SD Note 1: Stresses beyond those listed under Absolute Maximum Ratings temperature range. The LTC3122H is guaranteed to meet specifications may cause permanent damage to the device. Exposure to any Absolute over the full ?40?C to 150?C operating junction range. The junction Maximum Rating condition for extended periods may affect device temperature (T in ?C) is calculated from the ambient temperature (T in J A reliability and lifetime. ?C) and power dissipation (P in Watts) according to the formula: T = T D J A + (P ? ? ) where ? is the thermal impedance of the package. Note 2: Voltage transients on the SW pin beyond the DC limit specified in D JA JA the Absolute Maximum Ratings are non-disruptive to normal operations Note 4: The LTC3122 includes overtemperature protection that is intended when using good layout practices, as shown on the demo board or to protect the device during momentary overload conditions. Junction described in the data sheet or application notes. temperature will exceed 150?C when overtemperature shutdown is active. Continuous operation above the specified maximum operating junction Note 3: The LTC3122 is tested under pulsed load conditions such that temperature may result in device degradation or failure. T ? T . The LTC3122E is guaranteed to meet performance specifications A J from 0?C to 85?C. Specifications over the ?40?C to 125?C operating Note 5: Failure to solder the exposed backside of the package to the PC junction temperature range are assured by design, characterization and board ground plane will result in a thermal impedance much higher than correlation with statistical process controls. The LTC3122I is guaranteed the rated package specifications. to meet specifications over the full ?40?C to 125?C operating junction 3122fa 3 For more information www.linear.com/LTC3122 ics eris harac lec

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