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

Rev.1.6 Oct.16, 2019

AX3301



BLOCK DIAGRAM

GATE

Vcc

Reference Voltage

+

-

Vss

VEN

EN

OCSET

FB

LX

100uA

-

PWM Switched

Control Circuit

Thermal

Shutdown

Oscillation

Circuit

COMP



PIN ASSIGNMET

These packages of AX3301 are MSOP-8L and SOP-8L; the pin assignment is given by:

( Top View )

1

2

3

4

8

7

6

5

LX

EN

FB

Vss

Vcc

GATE

Comp

Ocset

MSOP - 8L/SOP - 8L

Name

Description

EN

Shutdown Control Input.

H：normal operation(Step-down)

L：Shutdown mode

Comp

Compensation pin

OCSET

Add an external resistor to set

max switch output current.

VCC

IC power supply pin

GATE

Gate drive for external P-channel

MOSFET.

LX

LX is the current sense input.

VSS

GND pin

FB

Feedback pin