Datasheet LTC3544 (Analog Devices) - 6
| Manufacturer | Analog Devices |
| Description | Quad Synchronous Step-Down Regulator: 2.25MHz, 300mA, 200mA, 200mA, 100mA |
| Pages / Page | 16 / 6 — TYPICAL PERFORMANCE CHARACTERISTICS. Load Step Response 100mA Channel. … |
| File Format / Size | PDF / 300 Kb |
| Document Language | English |
TYPICAL PERFORMANCE CHARACTERISTICS. Load Step Response 100mA Channel. Load Step Crosstalk. PFET RDS(ON) vs Supply Voltage
Model Line for this Datasheet
Text Version of Document
LTC3544
TYPICAL PERFORMANCE CHARACTERISTICS Load Step Response 100mA Channel Load Step Crosstalk
VOUT100 VOUT100 50mV/DIV 1mV/DIV AC COUPLED VOUT200A 1mV/DIV IL VOUT200B 100mA/DIV 1mV/DIV VOUT300 ILOAD 50mV/DIV 100mA/DIV V 20 3544 G16 IN = 3.6V μs/DIV V 40 3544 G17 IN = 3.6V μs/DIV V T OUT = 1.2V A = 25°C T 300mA LOAD STEP ON V A = 25°C OUT300 I OTHER CHANNELS LOADED 50% OF MAXIMUM LOAD = 400μA TO 100mA
PFET RDS(ON) vs Supply Voltage NFET RDS(ON) vs Supply Voltage
1.2 1.0 TA = 25°C TA = 25°C 0.9 1.0 0.8 0.7 0.8 ) Ω ) Ω 0.6 ( 0.6 0.5 DS(ON)R DS(ON)R 0.4 0.4 0.3 300 300 0.2 0.2 200B 200B 200A 0.1 200A 100 100 0 0 2 2.5 3 3.5 4 4.5 5 5.5 6 2 3 4 5 6 VIN (V) VIN (V) 3544 G16 3544 G17
PFET RDS(ON) vs Temperature NFET RDS(ON) vs Temperature
1.0 1.0 VIN = 3.6V VIN = 3.6V 0.9 0.9 0.8 0.8 0.7 0.7 ) Ω 0.6 Ω 0.6 ( 0.5 0.5 DS(ON) DS(ON) R 0.4 R 0.4 0.3 0.3 300 300 0.2 0.2 200B 200B 0.1 200A 0.1 200A 100 100 0 0 –50 –30 –10 10 30 50 70 90 –50 0 50 100 TEMPERATURE (°C) TEMPERATURE (°C) 3544 G18 3544 G19 3544fa 6
TYPICAL PERFORMANCE CHARACTERISTICS Load Step Response 100mA Channel Load Step Crosstalk
VOUT100 VOUT100 50mV/DIV 1mV/DIV AC COUPLED VOUT200A 1mV/DIV IL VOUT200B 100mA/DIV 1mV/DIV VOUT300 ILOAD 50mV/DIV 100mA/DIV V 20 3544 G16 IN = 3.6V μs/DIV V 40 3544 G17 IN = 3.6V μs/DIV V T OUT = 1.2V A = 25°C T 300mA LOAD STEP ON V A = 25°C OUT300 I OTHER CHANNELS LOADED 50% OF MAXIMUM LOAD = 400μA TO 100mA
PFET RDS(ON) vs Supply Voltage NFET RDS(ON) vs Supply Voltage
1.2 1.0 TA = 25°C TA = 25°C 0.9 1.0 0.8 0.7 0.8 ) Ω ) Ω 0.6 ( 0.6 0.5 DS(ON)R DS(ON)R 0.4 0.4 0.3 300 300 0.2 0.2 200B 200B 200A 0.1 200A 100 100 0 0 2 2.5 3 3.5 4 4.5 5 5.5 6 2 3 4 5 6 VIN (V) VIN (V) 3544 G16 3544 G17
PFET RDS(ON) vs Temperature NFET RDS(ON) vs Temperature
1.0 1.0 VIN = 3.6V VIN = 3.6V 0.9 0.9 0.8 0.8 0.7 0.7 ) Ω 0.6 Ω 0.6 ( 0.5 0.5 DS(ON) DS(ON) R 0.4 R 0.4 0.3 0.3 300 300 0.2 0.2 200B 200B 0.1 200A 0.1 200A 100 100 0 0 –50 –30 –10 10 30 50 70 90 –50 0 50 100 TEMPERATURE (°C) TEMPERATURE (°C) 3544 G18 3544 G19 3544fa 6
