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

Rev.1.5 Oct.15, 2019

AX3116



BLOCK DIAGRAM

PVCC

Oscillator

Circuit

Reference Voltage

PWM Switched

Control Circuit

+

-

VSS

VEN

EN

SS

FB

Thermal

Shutdown

SW

Current

Limit

4uA

VCC

110uA

OCSET



PIN ASSIGNMET

The package of AX3116 is SOP-8L-EP; the pin assignment is given by:

( Top View)

1

2

3

4

8

7

6

5

SW

VSS

SOP-8L-EP

OCSET

VCC

SS

EN

FB

PVCC

SW

Name

Description

FB

Feedback pin

EN

Power-off pin

H：normal operation(Step-down)

L：Step-down operation stopped

(All circuits deactivated)

SS

Soft-Start pin

VCC

IC power supply pin

PVCC

Driver power supply pin

SW

Switch pin. Connect external

inductor/diode here.

VSS

GND pin

OCSET

Add an external resistor to set max

switch output current.



ORDER/MARKING INFORMATION

Order Information

Top Marking

Package Type

ES: SOP-8L-EP

AX3116 X XX X

Packing

Blank : Tube

A : Taping

Frequency

Blank : 330Khz

Logo

Y

AX 3

Part number

ID code:internal

WW: 01~52

1 1 6

Y WW X

Year: 18=2018

19=2019

20=2020

21=2021

22=2022

:

45=2045