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ACT4012ASH 数据表(PDF) 7 Page - Active-Semi, Inc

部件名 ACT4012ASH
功能描述  Wide Input 1.5A Step Down Converter
PDF  10 Pages
Scroll/Zoom Zoom In 100%  Zoom Out
制造商  ACTIVE-SEMI [Active-Semi, Inc]
网页  http://www.active-semi.com
标志 ACTIVE-SEMI - Active-Semi, Inc

ACT4012ASH 数据表(HTML) 7 Page - Active-Semi, Inc

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ACT4012A
Rev0, 16-May-08
Innovative Power
TM
- 7 -
www.active-semi.com
Copyright © 2008 Active-Semi, Inc.
Figure 3:
ACT4012A 5V/1.5A Output Application
: D1 is a 30V, 2A Schottky diode with low forward voltage, an IR 20BQ030 or SK23 equivalent. C4 can be either a ceramic capacitor
(Panasonic ECJ-3YB1C226M) or SP-CAP (Specialty Polymer) Aluminum Electrolytic Capacitor such as Panasonic EEFCD0J470XR.
The SP-Cap is based on aluminum electrolytic capacitor technology, but uses a solid polymer electrolyte and has very stable capaci-
tance characteristics in both operating temperature and frequency compared to ceramic, polymer, and low ESR tantalum capacitors.
ACT4012A
BS
IN
EN
COMP
FB
SW
G
ENABLE
7.5V to 20V
+
5V/1.5A
VIN
VOUT
R1 37k
D1
C4
22µF/10V
Ceramic
R2
13k
C5
(OPTIONAL)
R3
15k
C1
10µF/
25V
C2
1.5nF
L1 22µH/2A
C3
10nF



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