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

Rev.1.9 Oct.30, 2019

AX3513



BLOCK DIAGRAM

FB

EN

VIN

SW

GND

Over-Temperature and

Short-Circuit Protection

REF

Soft-Star

0.6V

+

-

-

+

Icomp

Isense

AMP

OSC

SLOPE

COMP

PWM

LOGIC

Izero

COMP

NON-OVERLAP

CONTROL

RESET

SET

Enable Logic



PIN ASSIGNMENT

The packages of AX3513 are TSOT-23-5L and TDFN-6L; the pin assignment is given by:

(Top View)

EN

GND

SW

VIN

FB

1

2

3

4

5

TSOT-23-5L

Name

Description

EN

Enable pin

H：normal operation

L：Shutdown

GND

Ground Pin

SW

Switch output pin. Connect

external inductor here. Minimize

trace area at this pin to reduce

EMI.

VIN

Power Supply Input Pin

FB

Output Feedback pin

NC

No Connect.

TDFN-6L (2*2)

VIN

FB

SW

1

2

3

4

5

6

EN

GND

NC

GND