2/8

MA5620(Preliminary)

Major Power Technology Co., Ltd.

Rev.0.2

Jul 16, 2016

The package of MA5620 is TDFN-12L (3x3) package; the pin assignment is given by:

1

2

3

4

5

6

12

11

10

9

8

7

(GND )

GND

VREF

CS2

CS1

COMP

FB

GL

LX

GH

VIN

SENSE

BS

(Top View)

TDFN-12L (3 x 3)

SOP-14L

1

(Top View)

LX

SGND

PGND

GL

FB

COMP

CS1

CS2

VREF

SGND

BS

VIN

GH

SENSE

2

3

4

5

6

7

8

9

10

11

12

13

14

Name

Description

BS

Boot-Strap Pin. Supply high side gate driver. Decouple this pin to LX pin with 0.1uF ceramic

cap.

SENSE Power Input Current limit sense.

VIN

Power Input pin. Bypass IN to GND with a suitably large capacitor to eliminate noise on the

input to the IC.

GH

Gate drive for external high side N-MOSFET..

LX

Switching sense.

GL

Gate drive for external low side N-MOSFET..

PGND/

GND

Power Ground.

FB

Feedback Input. FB senses the output voltage to regulate that voltage. Drive FB with a

resistive voltage divider from the output voltage.

COMP

Compensation Node. COMP is used to compensate the regulation control loop. Connect a

series RC network from COMP to GND to compensate the regulation control loop.

CS1

The Current Sense 1 pin.

CS2

The Current Sense 2 pin.

VREF Internal regulator pin

PGND Ground.

PAD

Ground (Connect to GND).