Datasheet LTC3621, LTC3621-2 (Analog Devices) - 3
| Manufacturer | Analog Devices |
| Description | 17V, 1A Synchronous Step-Down Regulator with 3.5μA Quiescent Current |
| Pages / Page | 18 / 3 — orDer inForMaTion. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*. … |
| File Format / Size | PDF / 291 Kb |
| Document Language | English |
orDer inForMaTion. LEAD FREE FINISH. TAPE AND REEL. PART MARKING*. PACKAGE DESCRIPTION. TEMPERATURE RANGE
Model Line for this Datasheet
- LTC3621EDCB#PBF LTC3621EDCB#TRMPBF LTC3621EDCB#TRPBF LTC3621EDCB-2#PBF LTC3621EDCB-2#TRMPBF LTC3621EDCB-2#TRPBF LTC3621EDCB-23.3#PBF LTC3621EDCB-23.3#TRMPBF LTC3621EDCB-23.3#TRPBF LTC3621EDCB-25#PBF LTC3621EDCB-25#TRMPBF LTC3621EDCB-25#TRPBF LTC3621EDCB-3.3#PBF LTC3621EDCB-3.3#TRMPBF LTC3621EDCB-3.3#TRPBF LTC3621EDCB-5#PBF LTC3621EDCB-5#TRMPBF LTC3621EDCB-5#TRPBF LTC3621EMS8E#PBF LTC3621EMS8E#TRPBF LTC3621EMS8E-2#PBF LTC3621EMS8E-2#TRPBF LTC3621EMS8E-23.3#PBF LTC3621EMS8E-23.3#TRPBF LTC3621EMS8E-25#PBF LTC3621EMS8E-25#TRPBF LTC3621EMS8E-3.3#PBF LTC3621EMS8E-3.3#TRPBF LTC3621EMS8E-5#PBF LTC3621EMS8E-5#TRPBF LTC3621HMS8E#PBF LTC3621HMS8E#TRPBF LTC3621HMS8E-2#PBF LTC3621HMS8E-2#TRPBF LTC3621HMS8E-23.3#PBF LTC3621HMS8E-23.3#TRPBF LTC3621HMS8E-25#PBF LTC3621HMS8E-25#TRPBF LTC3621HMS8E-3.3#PBF LTC3621HMS8E-3.3#TRPBF LTC3621HMS8E-5#PBF LTC3621HMS8E-5#TRPBF LTC3621IDCB#PBF LTC3621IDCB#TRMPBF LTC3621IDCB#TRPBF LTC3621IDCB-2#PBF LTC3621IDCB-2#TRMPBF LTC3621IDCB-2#TRPBF LTC3621IDCB-23.3#PBF LTC3621IDCB-23.3#TRMPBF LTC3621IDCB-23.3#TRPBF LTC3621IDCB-25#PBF LTC3621IDCB-25#TRMPBF LTC3621IDCB-25#TRPBF LTC3621IDCB-3.3#PBF LTC3621IDCB-3.3#TRMPBF LTC3621IDCB-3.3#TRPBF LTC3621IDCB-5#PBF LTC3621IDCB-5#TRMPBF LTC3621IDCB-5#TRPBF LTC3621IMS8E#PBF LTC3621IMS8E#TRPBF LTC3621IMS8E-2#PBF LTC3621IMS8E-2#TRPBF LTC3621IMS8E-23.3#PBF LTC3621IMS8E-23.3#TRPBF LTC3621IMS8E-25#PBF LTC3621IMS8E-25#TRPBF LTC3621IMS8E-3.3#PBF LTC3621IMS8E-3.3#TRPBF LTC3621IMS8E-5#PBF LTC3621IMS8E-5#TRPBF
Text Version of Document
LTC3621/LTC3621-2
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3621EMS8E-2#PBF LTC3621EMS8E-2#TRPBF LTGHZ 8-Lead Plastic MSOP –40°C to 125°C LTC3621IMS8E-2#PBF LTC3621IMS8E-2#TRPBF LTGHZ 8-Lead Plastic MSOP –40°C to 125°C LTC3621HMS8E-2#PBF LTC3621HMS8E-2#TRPBF LTGHZ 8-Lead Plastic MSOP –40°C to 150°C LTC3621EMS8E-23.3#PBF LTC3621EMS8E-23.3#TRPBF LTGNZ 8-Lead Plastic MSOP –40°C to 125°C LTC3621IMS8E-23.3#PBF LTC3621IMS8E-23.3#TRPBF LTGNZ 8-Lead Plastic MSOP –40°C to 125°C LTC3621HMS8E-23.3#PBF LTC3621HMS8E-23.3#TRPBF LTGNZ 8-Lead Plastic MSOP –40°C to 150°C LTC3621EMS8E-25#PBF LTC3621EMS8E-25#TRPBF LTGQB 8-Lead Plastic MSOP –40°C to 125°C LTC3621IMS8E-25#PBF LTC3621IMS8E-25#TRPBF LTGQB 8-Lead Plastic MSOP –40°C to 125°C LTC3621HMS8E-25#PBF LTC3621HMS8E-25#TRPBF LTGQB 8-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/
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TJ = 25°C. (Note 3) VIN = 12V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Voltage 2.7 17 V VOUT Operating Voltage 0.6 VIN V IVIN Input Quiescent Current Shutdown Mode, VRUN = 0V 0.1 1.0 µA Burst Mode Operation 3.5 7 µA Forced Continuous Mode (Note 4), VFB 1.5 mA < 0.6V VFB Regulated Feedback Voltage LTC3621/LTC3621-2 0.594 0.6 0.606 V l 0.591 0.6 0.609 V IFB FB Input Current LTC3621/LTC3621-2 10 nA VOUT Regulated Fixed Output Voltage LTC3621-3.3/LTC3621-23.3 3.267 3.3 3.333 V l 3.250 3.3 3.350 V LTC3621-5/LTC3621-25 4.950 5.0 5.050 V l 4.925 5.0 5.075 V IFB(VOUT) Feedback Input Leakage Current Fixed Output Versions 2 10 µA ΔVLINE(REG) Reference Voltage Line Regulation VIN = 2.7V to 17V (Note 5) 0.01 0.015 %/V ΔVLOAD(REG) Output Voltage Load Regulation (Note 5) 0.1 % ILSW NMOS Switch Leakage 0.1 1 µA PMOS Switch Leakage 0.1 1 µA RDS(ON) NMOS On-Resistance (Bottom FET) VIN = 5V 0.15 Ω PMOS On-Resistance (Top FET) 0.37 Ω DMAX Maximum Duty Cycle VFB = 0.5V, VMODE/SYNC = 1.5V l 100 % tON(MIN) Minimum On-Time 60 ns VRUN RUN Input High Threshold 1.0 V RUN Input Low Threshold 0.3 V IRUN RUN Input Current VRUN = 12V 0 20 nA 3621fc For more information www.linear.com/LTC3621 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
orDer inForMaTion LEAD FREE FINISH TAPE AND REEL PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3621EMS8E-2#PBF LTC3621EMS8E-2#TRPBF LTGHZ 8-Lead Plastic MSOP –40°C to 125°C LTC3621IMS8E-2#PBF LTC3621IMS8E-2#TRPBF LTGHZ 8-Lead Plastic MSOP –40°C to 125°C LTC3621HMS8E-2#PBF LTC3621HMS8E-2#TRPBF LTGHZ 8-Lead Plastic MSOP –40°C to 150°C LTC3621EMS8E-23.3#PBF LTC3621EMS8E-23.3#TRPBF LTGNZ 8-Lead Plastic MSOP –40°C to 125°C LTC3621IMS8E-23.3#PBF LTC3621IMS8E-23.3#TRPBF LTGNZ 8-Lead Plastic MSOP –40°C to 125°C LTC3621HMS8E-23.3#PBF LTC3621HMS8E-23.3#TRPBF LTGNZ 8-Lead Plastic MSOP –40°C to 150°C LTC3621EMS8E-25#PBF LTC3621EMS8E-25#TRPBF LTGQB 8-Lead Plastic MSOP –40°C to 125°C LTC3621IMS8E-25#PBF LTC3621IMS8E-25#TRPBF LTGQB 8-Lead Plastic MSOP –40°C to 125°C LTC3621HMS8E-25#PBF LTC3621HMS8E-25#TRPBF LTGQB 8-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/
elecTrical characTerisTics The
l
denotes the specifications which apply over the specified operating junction temperature range, otherwise specifications are at TJ = 25°C. (Note 3) VIN = 12V, unless otherwise noted. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS
VIN Operating Voltage 2.7 17 V VOUT Operating Voltage 0.6 VIN V IVIN Input Quiescent Current Shutdown Mode, VRUN = 0V 0.1 1.0 µA Burst Mode Operation 3.5 7 µA Forced Continuous Mode (Note 4), VFB 1.5 mA < 0.6V VFB Regulated Feedback Voltage LTC3621/LTC3621-2 0.594 0.6 0.606 V l 0.591 0.6 0.609 V IFB FB Input Current LTC3621/LTC3621-2 10 nA VOUT Regulated Fixed Output Voltage LTC3621-3.3/LTC3621-23.3 3.267 3.3 3.333 V l 3.250 3.3 3.350 V LTC3621-5/LTC3621-25 4.950 5.0 5.050 V l 4.925 5.0 5.075 V IFB(VOUT) Feedback Input Leakage Current Fixed Output Versions 2 10 µA ΔVLINE(REG) Reference Voltage Line Regulation VIN = 2.7V to 17V (Note 5) 0.01 0.015 %/V ΔVLOAD(REG) Output Voltage Load Regulation (Note 5) 0.1 % ILSW NMOS Switch Leakage 0.1 1 µA PMOS Switch Leakage 0.1 1 µA RDS(ON) NMOS On-Resistance (Bottom FET) VIN = 5V 0.15 Ω PMOS On-Resistance (Top FET) 0.37 Ω DMAX Maximum Duty Cycle VFB = 0.5V, VMODE/SYNC = 1.5V l 100 % tON(MIN) Minimum On-Time 60 ns VRUN RUN Input High Threshold 1.0 V RUN Input Low Threshold 0.3 V IRUN RUN Input Current VRUN = 12V 0 20 nA 3621fc For more information www.linear.com/LTC3621 3 Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Block Diagram Operation Applications Information Package Description Revision History Typical Application Related Parts
