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