ACT4533
Rev 1, 25-Feb-13
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(L = 47µH, CIN = 10µF, COUT = 47µF, Ta = 25°C, RCOMP = 2.2k, CCOMP1 = 4.7nF, CCOMP2 = 47pF)
SW vs. Output Voltage Ripple
Start up with EN
VIN = 24V
VOUT = 5V
IOUT = 2.1A
CH1
CH1
CH2
VIN = 12V
VOUT = 5V
IOUT = 2.1A
CH2
CH1: EN, 2V/div
CH2: VOUT, 2V/div
TIME: 400µs//div
CH1: SW, 10V/div
CH2: VOUT Ripple, 50mV/div
TIME: 4µs/div
Load transient (80mA-1A-80mA)
Start up with EN
CH1
CH2
CH1
CH2
VIN = 24V
VOUT = 5V
VIN = 12V
VOUT = 5V
IISET = 2.1A
I
ISET = 2.1A
CH1: EN, 2V/div
CH2: VOUT, 2V/div
TIME: 400µs//div
CH1: VOUT, 100mV/div
CH2: IOUT, 1A/div
TIME: 400µs/div
Short Circuit
Load Transient (1A-2.1A-1A)
VIN = 12V
V
OUT = 5V
CH1
IISET = 2.1A
CH1
CH2
VIN = 12V
VOUT = 5V
IISET = 2.1A
CH2
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 100µs/div
CH1: VOUT, 100mV/div
CH2: IOUT, 1A/div
TIME: 400µs/div
Innovative PowerTM
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