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ACT4533A Datasheet(PDF) 14 Page - Active-Semi, Inc

Part # ACT4533A
Description  Wide-Input Sensorless CC/CV Step-Down DC/DC Converter
PDF  18 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4533A Datasheet(HTML) 14 Page - Active-Semi, Inc

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ACT4533A/B
Rev 0, 14-Aug-13
Innovative Power
TM
- 14 -
www.active-semi.com
Copyright © 2013 Active-Semi, Inc.
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
Start up into CC mode
SW vs. Output Voltage Ripples
Start up into CC mode
VOUT = 5V
RLORD = 1.5Ω
IISET = 2.65A
VIN = 12V
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 400µs/div
CH1: VOUT, 2V/div
CH2: IOUT, 1A/div
TIME: 400µs/div
VIN = 12V
VOUT = 5V
IOUT = 2.4A
CH1
CH2
CH1: VOUT Ripple, 20mV/div
CH2: SW, 10V/div
TIME: 4µs/div
VOUT = 5V
RLORD = 1.5Ω
IISET = 2.65A
VIN = 24V
CH1
CH2
CH1
CH2
Standby Current vs. Input Voltage
(FB=1V)
1160
1120
1080
1040
1000
960
Input Voltage (V)
8
12
16
20
24
28
32
40
36
Reverse Leakage Current (VIN Floating)
160
120
80
40
0
VOUT (V)
0
1
2
3
4
5
(Schematic as show in Figure 9, Ta = 25°C, unless otherwise specified)
Feedback Voltage vs. Input Voltage
0.818
0.815
0.812
0.809
0.806
0.803
0.800
Input Voltage (V)
8
12
16
20
24
28
32
36
40



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