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MA5003

Major Power Technology Co., Ltd.

Rev.1.3

Dec.01, 2016



BLOCK DIAGRAM

PWM

CONTROL

LOGIC

OSCILLATOR

+

-

COMP

ILIMIT

EA

REFERENCE

and BIAS

SOFTSTART

UVLO

and POR

0.6V

P-SWITCH

EN

FB

GND

SW

VCC

ISEN

Thermal

Shutdown

DRIVER



PIN ASSIGNMENT

The packages of MA5003 are SOT23-5L, and SOP8-EP; the pin assignment is given by:

( Top View )

1

2

3

4

8

EN

NC

SOP8L-EP

MA5003

GND

VCC

GND

SW

NC

FB

(GND)

Name

Description

EN

Chip Enable pin. Active high.

GND

Ground Pin.

SW

Switching Pin

VCC

VCC Input Pin

FB

Feedback Pin.

NC

NO Connect