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Axelite Confidential Materials, do not copy or distribute without written consent.

Rev.1.4 Oct.11, 2011

AX3022



BLOCK DIAGRAM

200KHz

OSC.

START

UP

+

+

+

_

Thermal

Shutdown

CONTROL

+

DRIVER

COMP.

COMP.

Vss

SW

EN

FB

200mV

220mV

COMP.

VCC

Current

limit

+

_

AMP

COMP.

CURRENT

SOURCE

BIAS

0.75V

REFERENCE

2.5V

REGULATOR



PIN ASSIGNMENT

The package of AX3022 is SOT89-5L; the pin assignment is given by:

SOT89-5L

(Top View)

3

2

1

54

SW

VSS

FB

EN

VCC

AX3022

Name

Description

VCC

Operating voltage input

SW

Switching output

FB

Output voltage feedback control

EN

ON/OFF Shutdown

VSS

GND pin



ORDER/MARKING INFORMATION

Order Information

Top Marking

Package Type

F5: SOT89-5L

AX3022 XX X

Packing

Blank : Tube

A : Taping

3

Part number

ID code: internal

WW: 01~26 (A~Z)

27~52 (a~z)

Year: A=2010

1=2011

WX

0 22

Y