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ACT4088 Datasheet(PDF) 4 Page - Active-Semi, Inc

Part # ACT4088
Description  28V, 1.5A, 1.4MHz Step-Down DC/DC Converter in SOT23-6
PDF  12 Pages
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Manufacturer  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4088 Datasheet(HTML) 4 Page - Active-Semi, Inc

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ACT4088
Rev 2, 15-Nov-12
Innovative PowerTM
- 4 -
www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
TYPICAL PERFORMANCE CHARACTERISTICS
(Circuit of Figure 2, VIN = 12V, L = 4.7µH, C1 = 10µF, C2 = 22µF, TA = +25°C, unless otherwise specified.)
Temperature (°C)
FB Voltage vs. Temperature
800
804
808
812
816
820
-40
-20
0
20
40
60
80
100
120
Oscillator Frequency vs. Temperature
1.20
1.30
1.40
1.50
1.60
Efficiency vs. Load Current
50
75
85
55
65
0.1
1
10
Efficiency vs. Load Current
95
VIN = 12V
VOUT = 5V
VOUT = 3.3V
Duty Cycle
Peak Current Limit vs. Duty Cycle
0.0
0.5
1.0
1.5
2.0
2.5
0
20
40
80
100
Input Voltage (V)
Shutdown Current vs. Input Voltage
0
5
10
15
20
30
0
4
8
24
28
Load Current (A)
VIN = 24V
VIN = 18V
0.1
1
10
Load Current (A)
50
75
85
55
65
95
VIN = 24V
VIN = 18V
VIN = 12V
Temperature (°C)
-40
-20
0
20
40
60
80
100
120
3.0
60
25
Sup
ply
Cur
ren
t
EN Pull-up Current
16
12
20



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