Io=3A non-isorated step-down DC/DC Converter module

MPM00 Series

SANKEN ELECTRIC CO., LTD.

Sep./15/2015

Rev.3.0

1

http://www.sanken-ele.co.jp

General Descriptions

The MPM series is a full molded hybrid IC which contains

a non-insulated buck type DC/DC converter in one

package. A power supply circuit can be composed in a

simple way by using this hybrid IC which requires a small

part count.

By connecting only an input smoothing electrolytic

capacitor, an output smoothing electrolytic capacitor and

an output voltage setting resistor, the hybrid IC can be

operated. Because of this simple composition, time

required for design evaluation is significantly reduced.

Since a power inductor is built in, it is not required to

select and evaluate the inductor separately. By adopting a

full molding package which can be fitted to the heat sink

by screwing, board mounting can be made in

self-supporting state without the heat sink subject to the

output voltage setting and load conditions.

Features & Benefits

PWM control system

 By connecting only an input smoothing electrolytic

capacitor, an output smoothing electrolytic capacitor

and an output voltage setting resistor, the hybrid IC

can be operated.

 Since a power inductor is built in, it is not required to

select and evaluate the inductor separately.

 Maximum efficiency 91％

 Output current range 0 to 3A

 Operating frequency 250kHz

 Reference voltage 0.5V±2%

 Built-in protection function

Over Current Protection (OCP)

Thermal Shutdown (TSD)

Under Voltage Lockout (UVLO)

 Built-in phase compensation

 Built-in Soft-Start function

Package

 Full molding package SIP9(LF971)

Electrical Characteristics

 Input voltage range： MPM01 : 9V to 40V

MPM04 : 16V to 40V

 Output voltage range： MPM01 : 1.8V to 12V

MPM04 : 12V to 24V

 Output current I

 Operating frequency: 250kHz

Applications

 FA machine / Communications equipment

Domestic products

 Amusement machine / others

Line up

Product

name

fsw

VIN

Vo

Io

Lead Forming

MPM01

250kHz

9V to 40V

*1 1.8V to 12V

3A

LF971

Self-supporting

LF972

Right angle

MPM04

16V to 40V

*2

12V to 24V

LF971

Self-supporting

LF972

Right angle

20V<Vo<24V more than Vin(MIN)30V in 18V<Vo<20V.

Pin Assignment

Pin

Symbol Function

1,3

GND

Ground terminal

2

VIN

Input power supply terminal

4

FB

Feedback terminal

5,6,7

OUT

Output terminal

8,9

SW

Switching-Frequency-measurement