IS31PW3500

Integrated Silicon Solution, Inc. – www.issi.com

2

Rev.A, 12/30/2011

PIN CONFIGURATION

Package

Pin Configuration (Top View)

DFN-8

PIN DESCRIPTION

No.

Pin

Description

1

PGND

Signal ground, connect to ground.

2

VIN

Input supply voltage.

3

EN

Chip enable pin. Connect to 1.4V or higher to enable device,

0.4V or less to disable device.

4

AIN

Audio input.(note1)

5

AOUT

Audio output.(note1)

6

FB

Feedback pin. Reference voltage is 0.25V. Connect cathode of

lowest LED and resistor here. Calculate resistor value according

7

GND

Common ground

8

LX

Switch pin. Connect inductor/diode here. Minimize trace area at

this pin to reduce EMI.

Thermal Pad Connect to GND.

Note 1:

See section constant output voltage for Class-G audio amplifier in application information.

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