AX3702



BLOCK DIAGRAM

Bandgap

0.6V

FB

PWM

HSON

LSON

SW

GND

M1

REFSS

Modulation

Ramp

Control

Logic

REFSS

Constant

On-time

ON

VIN

SW

IN

SW

M2

OVLD

ILIMT

Current

Limit

&

Over-load

Detection

EA

EN

IN

SoftStart



PIN ASSIGNMENT

The packages of AX3702 are SOT-23-5L, SOT-23-6L, TDFN-10L (3*3), and SOP-8L-EP the

pin assignment is given by:

TDFN-10L (3*3)

EN

SW

1

FB

10

2

3

4

5

6

7

8

9

PVIN

NC

NC

SGND

SW

PGND

PGND

AX3702

(GND)

( Top View )

1

2

3

4

8

7

6

5

EN

NC

SOP-8L-EP

SGND

PVIN

PGND

SW

FB

NC

(Top View)

EN

GND

SW

VIN

FB

1

2

3

4

SOT-23-5L

5

SOT-23-5L(A-Type)

(Top View)

EN

GND

SW

VIN

FB

1

2

3

4

5

SOT-23-6L

6

GND

SOT-23-6L

2/22

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Rev1.4 Sep.30, 2021