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ACT4501 Datenblatt(PDF) 11 Page - Active-Semi, Inc

Teilenummer ACT4501
Bauteilbeschribung  1.25A CC/CV Step-Down DC/DC Converter
PDF  15 Pages
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Hersteller  ACTIVE-SEMI [Active-Semi, Inc]
Direct Link  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT4501 Datenblatt(HTML) 11 Page - Active-Semi, Inc

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ACT4501
Rev 2, 14-Nov-12
Innovative Power
TM
- 11 -
www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
TYPICAL PERFORMANCE CHARACTERISTICS
Input Voltage (V)
5
10
15
20
25
30
35
Switching Frequency vs. Input Voltage
125
120
115
110
105
100
130
Switching Frequency vs. Feedback Voltage
100
80
60
40
20
0
120
140
Feedback Voltage (V)
0
0.2
0.4
0.6
0.8
1
1000
900
800
700
600
500
400
Temperature (°C)
-40
-25
0
25
50
75
80
CC Current vs. Input Voltage
1000
900
800
700
600
500
400
Peak Current Limit vs. Duty Cycle
2500
2250
2000
1750
1500
1250
1000
750
500
250
0
Duty Cycle
0
0.1
0.2
0.3
0.4
0.5
0.6
0.7
0.8
0.9
CC Current vs. Temperature
Input Voltage (V)
10
12
18
24
30
VIN = 12V
RISET = 33kΩ
RISET = 33kΩ
(Circuit of Figure 7, IISET = 1A, L = 82µH, CIN = 10µF, COUT = 22µF, TA = 25°C, unless otherwise specified.)
Load Current (mA)
10
100
1000
10000
1
100
90
80
70
60
50
40
Efficiency vs. Load Current
VIN = 12V
VOUT = 5V
VIN = 24V
VIN = 16V



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