2/10

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

Rev.1.2 Sep.23, 2019

AX1255



BLOCK DIAGRAM

Enable

Thermal

Shutdown

Current-

Limit

Error

Amplifier

and

Soft-Start

Power-On-

Reset

VCNTL

VIN

VOUT

GND

VREF

EN

VREF

THSD

POR



PIN ASSIGNMENT

The package of AX1255 is SOP-8L-EP; the pin assignment is given by:

( Top View )

1

2

3

4

8

7

6

5

SOP-8L-EP

GND

VCNTL

VIN

GND

REFEN

VOUT

NC

NC

NC

Name

Description

VIN

Input Voltage pin

GND

Ground pin

REFEN Reference voltage input and chip

enable pin

VOUT

Output Voltage pin

VCNTL

Supply Input and Gate drive

voltage pin

NC

No connect pin



ORDER/MARKING INFORMATION

Order Information

Top Marking

Package Type

ES: SOP-8L-EP

AX 1255 XX X

Packing

Blank : Tube

A : Taping

Y

AX

Logo

Part number

ID code: internal

WW: 01 ~ 52

Year: 18=2018

19=2019

20=2020

21=2021

22=2022

YWWX

1 2 5 5

:

45=2045