AOZ1010

Rev. 1.0 November 2006

www.aosmd.com

Page 2 of 14

Ordering Information

All AOS Products are offering in packaging with Pb-free plating and compliant to RoHS standards.

Pin Configuration

Pin Description

Block Diagram

Part Number

Ambient Temperature Range

Package

Environmental

AOZ1010AI

-40°C to +85°C

SO-8

RoHS

LX

LX

EN

COMP

1

2

3

4

PGND

VIN

AGND

FB

SO-8

(Top View)

8

7

6

5

Pin Number

Pin Name

Pin Function

1

PGND

Power ground. Electrically needs to be connected to AGND.

3AGND

Reference connection for controller section. Also used as thermal connection for controller

section. Electrically needs to be connected to PGND.

4FB

The FB pin is used to determine the output voltage via a resistor divider between the output

and GND.

5

COMP

External loop compensation pin.

6EN

7, 8

LX

PWM output connection to inductor. Thermal connection for output stage.

500kHz

Oscillator

AGND

PGND

VIN

EN

FB

COMP

LX

LX

OTP

Internal

+5V

ILimit

PWM

Control

Logic

5V LDO

Regulator

UVLO

& POR

Softstart

Reference

& Bias

0.8V

Q1

D1

PWM

Comp

Level

Shifter

+

FET

Driver

ISen

EAmp

+

–

+

–

+

–

+

RoHS

Compliant