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ACT2102 Datasheet(PDF) 13 Page - Active-Semi, Inc

No. de pieza ACT2102
Descripción Electrónicos  18V/2A Step-Down DC/DC Converter
PDF  16 Pages
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Fabricante Electrónico  ACTIVE-SEMI [Active-Semi, Inc]
Página de inicio  http://www.active-semi.com
Logo ACTIVE-SEMI - Active-Semi, Inc

ACT2102 Datasheet(HTML) 13 Page - Active-Semi, Inc

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ACT2102
Rev 2, 23-May-12
®
Innovative PowerTM
- 13 -
www.active-semi.com
Copyright © 2012 Active-Semi, Inc.
TYPICAL PERFORMANCE CHARACTERISTICS CONT’D
10mA Load Operation
100mA Load Operation
No Load Operation
CH1: VRIPPLE, 10mV/div
CH2: SW, 5V/div
CH3: IL, 200mA/div
TIME: 10µs/div
CH1: VRIPPLE, 20mV/div
CH2: SW, 5V/div
CH3: IL, 1A/div
TIME: 2µs/div
CH1
CH2
CH1
CH2
CH1
CH2
Standby Current vs. VIN
3
2.5
2
1.5
1
0.5
0
VIN Voltage (V)
3
5
7
9
11
13
15
17
19
21
IIN vs. VIN at Output Dead Short
140
120
100
80
60
40
20
VIN (V)
4
6
8
10
12
14
16
18
20
Peak Current Limit vs. Duty Cycle
3.2
3.0
2.8
2.6
2.4
3.4
3.6
Duty Cycle
20
30
40
50
60
70
80
90
(L = 22µH, CIN = 100µF, COUT = 330µF, Ta = 25°C, RCOMP = 15k, CCOMP1 = 2.2nF, CCOMP2 = N/C)
VIN = 12V
V0UT = 5V
VIN = 12V
V0UT = 5V
VIN = 12V
V0UT = 5V
CH3
CH3
CH1: VRIPPLE, 20mV/div
CH2: SW, 5V/div
CH3: IL, 1A/div
TIME: 2µs/div
CH3



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