ACT4523
Rev 5, 14-Nov-12
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(L = 33µH, CIN = 10µF, COUT = 47µF, Ta = 25°C, RCOMP = 8.2k, CCOMP1 = 2.2nF, CCOMP2 = NC)
Standby Current vs. Input Voltage
Shutdown Current vs. Input Voltage
175
160
145
130
115
100
85
3
2.5
2
1.5
1
0.5
0
0
70
10
15
20
25
30
35
40
4
8
12
16
20
24
28
32
36
40
Input Voltage (V)
Input Voltage (V)
Start up into CC mode
Reverse Leakage Current (VIN Floating)
160
120
80
VOUT = 5V
RLORD = 1.5ꢀ
IISET = 2A
VIN = 12V
CH1
CH2
40
0
0
1
2
3
4
5
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 200µs/div
VOUT (V)
Start up into CC mode
SW vs. Output Voltage Ripples
VOUT = 5V
VIN = 12V
RLORD = 1.5ꢀ
VOUT = 5V
IISET = 2A
VIN = 24V
IOUT = 2.1A
CH1
CH1
CH2
CH2
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 200µs/div
CH1: VOUT Ripple, 20mV/div
CH2: SW, 5V/div
TIME: 2µs/div
Innovative PowerTM
- 12 -
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