AAT1149A 데이터 시트보기 (PDF) - Skyworks Solutions
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AAT1149A Datasheet PDF : 17 Pages
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Pin Descriptions
DATA SHEET
AAT1149A
2.2MHz Fast Transient 400mA Step-Down Converter
Pin #
1
2
3
4
5
Symbol
FB
EN
AGND
PGND
IN
LX
Function
Feedback input pin. Connect this pin ito the converted output voltage node.
Enable pin.
Non-power signal ground pin.
Main power ground return pins. Connect to the output and input capacitor return.
Input supply voltage for the converter.
Switching node. Connect the inductor to this pin. It is internally connected to the drain of both high- and
low-side MOSFETs.
Pin Configuration
WLCSP-5
(Top View)
FB 1 2 EN
AGND/PGND 3
IN 4 5 LX
Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com
2
201988A • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • May 23, 2012
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