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ACT4012ASH Datasheet(PDF) 8 Page - Active-Semi, Inc

Part # ACT4012ASH
Description  Wide Input 1.5A Step Down Converter
PDF  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4012ASH Datasheet(HTML) 8 Page - Active-Semi, Inc

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ACT4012A
Innovative Products. Active Solutions.
- 8 -
www.active-semi.com
Copyright © 2006 Active-Semi, Inc.
Rev PrA, 21-Nov-07
TYPICAL PERFORMANCE CHARACTERISTICS
Load (A)
0.1
0.5
1.1
1.5
70
80
60
85
95
0.1
Load (A)
0.3
0.5
0.7
0.9
100
95
65
55
Efficiency vs. Load
(Circuit of Figure 3, unless otherwise specified.)
Input Voltage (V)
20
0
12
16
20
Shutdown Supply current vs. Input Voltage
25
15
10
5
Load (A)
80
0.1
0.3
0.7
0.9
Surface Temperature vs. Load
1.3
100
60
40
20
Junction Temperature (°C)
1.29
-40
0
40
80
Feedback Voltage vs. Junction Temperature
120
1.30
1.28
1.27
1.26
90
85
80
70
60
1.1
1.3
1.5
90
75
65
0.3
0.7
0.9
1.3
VOUT = 3.3V
L= 15µH
COUT = 22µF/cera
0.5
1.1
1.5
VIN = 12V
VIN = 20V
VIN = 8V
VOUT = 5V
L= 22µH
COUT = 22µF/cera
VIN = 8V
VIN = 12V
VIN = 20V
Efficiency vs. Load
75
5.0
6
10
14
Output Voltage vs. Input Voltage
20
5.4
4.6
4.2
4.0
5.2
4.8
4.4
12
8
Input Voltage (V)
18
16
IOUT = 0.5A
IOUT = 1A
IOUT = 1.5A
VIN = 12V
VIN = 20V
VIN = 8V



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