Datasheet LTC3544B (Analog Devices) - 2
| Manufacturer | Analog Devices |
| Description | Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA |
| Pages / Page | 18 / 2 — (Note 1). LEAD FREE FINISH. TAPE AND REEL. PART MARKING. PACKAGE … |
| File Format / Size | PDF / 300 Kb |
| Document Language | English |
(Note 1). LEAD FREE FINISH. TAPE AND REEL. PART MARKING. PACKAGE DESCRIPTION. TEMPERATURE RANGE. LEAD BASED FINISH. The
Model Line for this Datasheet
Text Version of Document
LTC3544B absoluTe MaxiMuM raTings pin conFiguraTion
(Note 1)
Input Supply Voltage ...–0.3V to 6V TOP VIEW RUNx ... –0.3V to (VIN + 0.3V) VFBx ...–0.3V to (VIN + 0.3V) RUN200B V CC GNDA SW100 SWx ... –0.3V to (VIN + 0.3V) 16 15 14 13 300mA P-Channel Source Current (DC) (Note 8) . 450mA VFB200B 1 12 RUN100 300mA N-Channel Sink Current (DC) (Note 8) ... 450mA VFB200A 2 17 11 VFB100 200mA P-Channel Source Current (DC) (Note 8) . 300mA GNDA RUN200A 3 10 VFB300 200mA N-Channel Sink Current (DC) (Note 8) ... 300mA SW200B 4 9 RUN300 100mA P-Channel Source Current (DC) (Note 8) . 200mA 5 6 7 8 100mA N-Channel Sink Current (DC) (Note 8) ... 200mA PGND PV IN Peak 300mA SW Sink and Source Current SW200A SW300 (Note 8) ... 600mA UD PACKAGE 16-LEAD (3mm s 3mm) PLASTIC QFN Peak 200mA SW Sink and Source Current TJMAX = 125°C, θJA = 68°C/W (Note 8) ... 400mA EXPOSED PAD (PIN 17) IS ANALOG GND, MUST BE SOLDERED TO PCB Peak 100mA SW Sink and Source Current (Note 8) ... 200mA Operating Temperature Range .. –40°C to 85°C Junction Temperature (Notes 3, 4) .. 125°C Storage Temperature Range ..–65°C to 125°C orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3544BEUD#PBF LTC3544BEUD#TRPBF LCLN 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3544BEUD LTC3544BEUD#TR LCLN 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. 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/ e
lecTrical characTerisTics
The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS General Characteristics
VIN Input Voltage Range l 2.25 5.5 V VFBREGx Regulated Feedback Voltage (Note 5) 0.792 0.8 0.808 V l 0.784 0.8 0.816 V ΔVFBREGx Reference Voltage Line Regulation (Note 5) VIN = 2.25V to 5.5V 0.05 0.25 %/V VLOADREG Output Voltage Load Regulation (Note 6) 0.5 % IS Input DC Bias Current Active Mode (Pulse Skip) VFB = 0.7V, ILOAD = 0A, 2.25MHz, 825 1100 µA Four Regulators Enabled Shutdown 0.1 2 µA fOSC Oscillator Frequency VIN = 3V 2.25 MHz VIN = 2.5V to 5.5V l 1.8 2.7 MHz 3544bfb Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagrams Operation Applications Information Package Description Revision History Related Parts
(Note 1)
Input Supply Voltage ...–0.3V to 6V TOP VIEW RUNx ... –0.3V to (VIN + 0.3V) VFBx ...–0.3V to (VIN + 0.3V) RUN200B V CC GNDA SW100 SWx ... –0.3V to (VIN + 0.3V) 16 15 14 13 300mA P-Channel Source Current (DC) (Note 8) . 450mA VFB200B 1 12 RUN100 300mA N-Channel Sink Current (DC) (Note 8) ... 450mA VFB200A 2 17 11 VFB100 200mA P-Channel Source Current (DC) (Note 8) . 300mA GNDA RUN200A 3 10 VFB300 200mA N-Channel Sink Current (DC) (Note 8) ... 300mA SW200B 4 9 RUN300 100mA P-Channel Source Current (DC) (Note 8) . 200mA 5 6 7 8 100mA N-Channel Sink Current (DC) (Note 8) ... 200mA PGND PV IN Peak 300mA SW Sink and Source Current SW200A SW300 (Note 8) ... 600mA UD PACKAGE 16-LEAD (3mm s 3mm) PLASTIC QFN Peak 200mA SW Sink and Source Current TJMAX = 125°C, θJA = 68°C/W (Note 8) ... 400mA EXPOSED PAD (PIN 17) IS ANALOG GND, MUST BE SOLDERED TO PCB Peak 100mA SW Sink and Source Current (Note 8) ... 200mA Operating Temperature Range .. –40°C to 85°C Junction Temperature (Notes 3, 4) .. 125°C Storage Temperature Range ..–65°C to 125°C orDer inForMaTion
LEAD FREE FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3544BEUD#PBF LTC3544BEUD#TRPBF LCLN 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C
LEAD BASED FINISH TAPE AND REEL PART MARKING PACKAGE DESCRIPTION TEMPERATURE RANGE
LTC3544BEUD LTC3544BEUD#TR LCLN 16-Lead (3mm × 3mm) Plastic QFN –40°C to 85°C Consult LTC Marketing for parts specified with wider operating temperature ranges. 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/ e
lecTrical characTerisTics
The
l
denotes the specifications which apply over the full operating temperature range, otherwise specifications are at TA = 25°C. VIN = 3.6V unless otherwise noted. (Note 2) SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS General Characteristics
VIN Input Voltage Range l 2.25 5.5 V VFBREGx Regulated Feedback Voltage (Note 5) 0.792 0.8 0.808 V l 0.784 0.8 0.816 V ΔVFBREGx Reference Voltage Line Regulation (Note 5) VIN = 2.25V to 5.5V 0.05 0.25 %/V VLOADREG Output Voltage Load Regulation (Note 6) 0.5 % IS Input DC Bias Current Active Mode (Pulse Skip) VFB = 0.7V, ILOAD = 0A, 2.25MHz, 825 1100 µA Four Regulators Enabled Shutdown 0.1 2 µA fOSC Oscillator Frequency VIN = 3V 2.25 MHz VIN = 2.5V to 5.5V l 1.8 2.7 MHz 3544bfb Document Outline Features Applications Description Typical Application Absolute Maximum Ratings Pin Configuration Order Information Electrical Characteristics Typical Performance Characteristics Pin Functions Functional Diagrams Operation Applications Information Package Description Revision History Related Parts
