AAT1126 Ver la hoja de datos (PDF) - Skyworks Solutions

Número de pieza

componentes Descripción

Fabricante

AAT1126

600mA, 1MHz Step-Down Converter

Skyworks Solutions 

Layout

The suggested PCB layout for the AAT1126 is shown in

Figures 2, 3, and 4. The following guidelines should be

used to help ensure a proper layout.

1. The input capacitor (C2) should connect as closely as

possible to VIN (Pin 3) and GND (Pin 1).

2. C1 and L1 should be connected as closely as possi-

ble. The connection of L1 to the LX pin should be as

short as possible.

DATA SHEET

AAT1126

600mA, 1MHz Step-Down Converter

3. The feedback trace or OUT pin (Pin 4) should be

separate from any power trace and connect as close-

ly as possible to the load point. Sensing along a

high-current load trace will degrade DC load regula-

tion. If external feedback resistors are used, they

should be placed as closely as possible to the OUT

pin (Pin 4) to minimize the length of the high imped-

ance feedback trace.

4. The resistance of the trace from the load return to

GND (Pin 1) should be kept to a minimum. This will

help to minimize any error in DC regulation due to

differences in the potential of the load return and the

AAT1126 ground.

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

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201976B • Skyworks Proprietary Information • Products and Product Information are Subject to Change Without Notice. • March 15, 2013

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