ACT4523A
Rev 0, 25-Jul-13
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
(Schematic as show in Figure 8, Ta = 25°C, unless otherwise specified)
Standby Current vs. Input Voltage
(FB=1V)
Feedback Voltage vs. Input Voltage
1160
1120
1080
1040
1000
960
0.818
0.815
0.812
0.809
0.806
0.803
0.800
8
12
16
20
24
28
32
36
40
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
VOUT = 5V
RLORD = 1.5ꢀ
IISET = 2.65A
VIN = 12V
CH1
CH2
80
40
0
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 400µs/div
0
1.0
2.0
3.0
4.0
5.0
VOUT(V)
Start up into CC mode
SW vs. Output Voltage Ripples
VIN = 12V
VOUT = 5V
IOUT = 2.4A
VOUT = 5V
LORD = 1.5ꢀ
IISET = 2.65A
VIN = 24V
R
CH1
CH1
CH2
CH2
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 400µs/div
CH1: VOUT Ripple, 20mV/div
CH2: SW, 5V/div
TIME: 2µs/div
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