AAT1130 Ver la hoja de datos (PDF) - Skyworks Solutions

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AAT1130

2.5MHz 400mA Step-Down DC/DC Converter

Skyworks Solutions 

DATA SHEET

AAT1130

2.5MHz 400mA Step-Down DC/DC Converter

Pin Descriptions

Pin #

1

2

3

4

5

6

7, 8, 9, 10

Symbol

FB

VOUT

VCC

VP

LX

EN

GND

Function

Output voltage feedback input. FB senses the output voltage through a resistor voltage divider circuit.

Connect the voltage divider from the output voltage to FB. The feedback threshold is 0.6V.

Output voltage sense input. VOUT senses the output voltage. Connect VOUT to the output voltage node

for proper on-time calculation.

Input supply voltage. Connect VCC to the input supply voltage.

Power input supply voltage. Connect VP to the VCC pin, and to the input supply voltage. Bypass VP to

GND with a 2.2μF or greater ceramic capacitor.

Switching node. Connect the LC filter between LX and the load. LX is internally connected to the drain of

the p-channel MOSFET switch and n-channel MOSFET synchronous rectifier.

Enable input. Active logic high.

Ground.

Pin Configuration

SC70JW-10

(Top View)

FB 1

VOUT 2

VCC 3

VP 4

LX 5

10 GND

9 GND

8 GND

7 GND

6 EN

Skyworks Solutions, Inc. • Phone [781] 376-3000 • Fax [781] 376-3100 • sales@skyworksinc.com • www.skyworksinc.com

2

201977B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013

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