AAT1149AIUV-1.875-T1 データシートの表示（PDF） - Analog Technology Inc

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AAT1149AIUV-1.875-T1

2.2MHz Fast Transient 400mA Step-Down Converter

Analog Technology Inc 

SwitchRegTM

PRODUCT DATASHEET

AAT1149A

2.2MHz Fast Transient 400mA Step-Down Converter

Pin Descriptions

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

2

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1149A.2008.08.1.1

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