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MA2011

Major Power Technology Co., Ltd.

Rev 1.0

17



PIN ASSIGNMENT

The package of MA2011 is SOP8L-EP. The pin assignment is given by:

( Top View )

1

2

3

4

8

7

6

5

EN

FB

SOP8L-EP

SS

VIN

GND

PGND

SW

SW

PAD

(SW)

Name

Description

EN

Chip Enable Pin. Active high. Internal pull high. Leave this pin floating to turn on

MA2011. Connect this pin to GND or give logic low signal to turn off. Add an extra

MLCC capacitor from EN pin to GND to adjust turn on delay time and avoids power

sequence issue.

VIN

FB

Negative Feedback Input Pin. The FB voltage is 1.0V. Set output voltage through a

precision resistor divider, recommended tolerance ±1% or lower.

SS

Soft-Start Pin. Connect an MLCC capacitor to GND, recommended 0.1uf／X5R at

least.

SW

Power Switch Output. SW is the drain of the internal MOSFET switch.

PGND Power Ground Pin.

GND

Signal Ground Pin.

PAD

Exposed-Pad. Connect to SW pin, and make sure a large area to SW-pad for

cooling.



ORDER / MARKING INFORMATION

Order Information

Top Marking

Package Type

MA2011

Packing

X X

ES: SOP8L-EP

Blank: Tube

A : Taping

X

X X X X X

Part number

ID code:internal

WW:01~52

Year:18=2018