Datasheet LTC3622, LTC3622-2, LTC3622-23/5 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | 17V, Dual 1A Synchronous Step-Down Regulator with Ultralow Quiescent Current |
| Pages / Page | 24 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS VIN1 = VIN2 = 12V, TA = 25°C, unless … |
| Revision | D |
| File Format / Size | PDF / 1.3 Mb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS VIN1 = VIN2 = 12V, TA = 25°C, unless otherwise noted. Efficiency vs Load Current at
Model Line for this Datasheet
- LTC3622EDE#PBF LTC3622EDE#TRPBF LTC3622EDE-2#PBF LTC3622EDE-2#TRPBF LTC3622EDE-23/5#PBF LTC3622EDE-23/5#TRPBF LTC3622EMSE#PBF LTC3622EMSE#TRPBF LTC3622EMSE-2#PBF LTC3622EMSE-2#TRPBF LTC3622HDE#PBF LTC3622HDE#TRPBF LTC3622HDE-2#PBF LTC3622HDE-2#TRPBF LTC3622HDE-23/5#PBF LTC3622HDE-23/5#TRPBF LTC3622HMSE#PBF LTC3622HMSE#TRPBF LTC3622HMSE-2#PBF LTC3622HMSE-2#TRPBF LTC3622IDE#PBF LTC3622IDE#TRPBF LTC3622IDE-2#PBF LTC3622IDE-2#TRPBF LTC3622IDE-23/5#PBF LTC3622IDE-23/5#TRPBF LTC3622IMSE#PBF LTC3622IMSE#TRPBF LTC3622IMSE-2#PBF LTC3622IMSE-2#TRPBF
Text Version of Document
LTC3622/ LTC3622-2/LTC3622-23/5
TYPICAL PERFORMANCE CHARACTERISTICS VIN1 = VIN2 = 12V, TA = 25°C, unless otherwise noted. Efficiency vs Load Current at Efficiency vs Load Current Dropout Operation Efficiency vs Load Current
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 40 40 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 V Burst Mode OPERATION V OUT = 2.5V 30 30 OUT = 2.5V PULSE SKIP V 20 VOUT = 5V 20 OUT = 3.3V V 20 IN = 12V VIN = 5V VIN = 12V 10 fSW = 1MHz 10 100% Duty Cycle 10 fSW = 2.25MHz Burst Mode OPERATION fSW = 2.25MHz Burst Mode OPERATION 0 0 0 0.0001 0.001 0.01 0.1 1 0.0001 0.001 0.01 0.1 1 0.0001 0.001 0.01 0.1 1 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3622 G01 3622 G02 3622 G03
VOUT Efficiency vs Input Voltage Above and Below Dropout Efficiency vs Load Current Efficiency vs Input Voltage
96 90 95 ILOAD = 10mA 10mA LOAD 84 80 1A LOAD ILOAD = 1mA 70 90 72 ILOAD = 100µA 60 60 85 50 48 40 80 EFFICIENCY (%) 36 EFFICIENCY (%) 30 EFFICIENCY (%) 24 20 VIN = 12V V 75 OUT = 4.25V VOUT = 1.8V VOUT = 2.5V 12 fSW = 1MHz 10 fSW = 1MHz fSW = 1MHz Burst Mode OPERATION Burst Mode OPERATION Burst Mode OPERATION 0 0 70 2.5 4.5 6.5 8.5 10.5 12.5 14.5 16.5 18.5 0.001 0.01 0.1 1 0 2 4 6 8 10 12 14 16 18 INPUT VOLTAGE (V) LOAD CURRENT (A) INPUT VOLTAGE (V) 3622 G04 3622 G05 3622 G06
IQ vs VIN Burst Mode Operation Pulse-Skipping Mode Operation
5 SW SW 10V/DIV 10V/DIV 4 IQ Burst Mode OPERATION V VOUT I OUT Q SHUT DOWN AC-COUPLED AC-COUPLED 3 50mV/DIV 20mV/DIV (µA) I Q 2 IL IL 100mA/DIV 200mA/DIV 1 3622 G08 4µs/DIV 3622 G09 4µs/DIV VIN = 12V VIN = 12V 0 V V 0 2 4 6 8 10 12 14 16 18 OUT = 2.5V OUT = 2.5V Burst Mode OPERATION PULSE-SKIPPING MODE INPUT VOLTAGE (V) IOUT = 75mA IOUT = 10mA 3622 G07 Rev D 6 For more information www.analog.com 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 Typical Applications Package Description Revision History Typical Application Related Parts
TYPICAL PERFORMANCE CHARACTERISTICS VIN1 = VIN2 = 12V, TA = 25°C, unless otherwise noted. Efficiency vs Load Current at Efficiency vs Load Current Dropout Operation Efficiency vs Load Current
100 100 100 90 90 90 80 80 80 70 70 70 60 60 60 50 50 50 40 40 40 EFFICIENCY (%) EFFICIENCY (%) EFFICIENCY (%) 30 V Burst Mode OPERATION V OUT = 2.5V 30 30 OUT = 2.5V PULSE SKIP V 20 VOUT = 5V 20 OUT = 3.3V V 20 IN = 12V VIN = 5V VIN = 12V 10 fSW = 1MHz 10 100% Duty Cycle 10 fSW = 2.25MHz Burst Mode OPERATION fSW = 2.25MHz Burst Mode OPERATION 0 0 0 0.0001 0.001 0.01 0.1 1 0.0001 0.001 0.01 0.1 1 0.0001 0.001 0.01 0.1 1 LOAD CURRENT (A) LOAD CURRENT (A) LOAD CURRENT (A) 3622 G01 3622 G02 3622 G03
VOUT Efficiency vs Input Voltage Above and Below Dropout Efficiency vs Load Current Efficiency vs Input Voltage
96 90 95 ILOAD = 10mA 10mA LOAD 84 80 1A LOAD ILOAD = 1mA 70 90 72 ILOAD = 100µA 60 60 85 50 48 40 80 EFFICIENCY (%) 36 EFFICIENCY (%) 30 EFFICIENCY (%) 24 20 VIN = 12V V 75 OUT = 4.25V VOUT = 1.8V VOUT = 2.5V 12 fSW = 1MHz 10 fSW = 1MHz fSW = 1MHz Burst Mode OPERATION Burst Mode OPERATION Burst Mode OPERATION 0 0 70 2.5 4.5 6.5 8.5 10.5 12.5 14.5 16.5 18.5 0.001 0.01 0.1 1 0 2 4 6 8 10 12 14 16 18 INPUT VOLTAGE (V) LOAD CURRENT (A) INPUT VOLTAGE (V) 3622 G04 3622 G05 3622 G06
IQ vs VIN Burst Mode Operation Pulse-Skipping Mode Operation
5 SW SW 10V/DIV 10V/DIV 4 IQ Burst Mode OPERATION V VOUT I OUT Q SHUT DOWN AC-COUPLED AC-COUPLED 3 50mV/DIV 20mV/DIV (µA) I Q 2 IL IL 100mA/DIV 200mA/DIV 1 3622 G08 4µs/DIV 3622 G09 4µs/DIV VIN = 12V VIN = 12V 0 V V 0 2 4 6 8 10 12 14 16 18 OUT = 2.5V OUT = 2.5V Burst Mode OPERATION PULSE-SKIPPING MODE INPUT VOLTAGE (V) IOUT = 75mA IOUT = 10mA 3622 G07 Rev D 6 For more information www.analog.com 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 Typical Applications Package Description Revision History Typical Application Related Parts
