MP2374

6.5V-32V Input, 1A, 330kHz

Step-Down Converter

MP2374 Rev. 1.0

www.MonolithicPower.com

1

1/23/2014

MPS Proprietary Information. Patent Protected. Unauthorized Photocopy and Duplication Prohibited.

© 2014 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2374 is a high voltage step-down

converter ideal for automotive power adapter

battery chargers. Its wide 6.5V to 32V input

voltage range covers the automotive battery’s

requirements and it achieves 1A continuous

output for quick charge capability.

Current mode operation provides fast transient

response and eases loop stabilization. Fault

protection

includes

cycle-by-cycle

current

limiting and thermal shutdown. In shutdown

mode, the converter draws only 20μA of supply

current.

The MP2374 requires a minimum number of

readily

available

external

components

to

complete a 1A step-down DC to DC converter

solution.

FEATURES

• Wide 6.5V to 32V Input Operating Range

• 34V Absolute Maximum Input

• 1A Continuous Load Current

• 120mΩ Internal Power MOSFET Switch

• Stable with Low ESR Output Ceramic

Capacitors

• Up to 95% Efficiency

• 20μA Shutdown Mode

• Fixed 330KHz Frequency

• Thermal Shutdown

• Cycle-by-Cycle Over Current Protection

• Output Adjustable From 1.23V to 21V

• Under Voltage Lockout

• Reference Voltage Output

• Available in an 8-Pin SOIC Package

APPLICATIONS

• Automotive Power Adapters

• PDA and Cellular Phone Battery Chargers

• Automotive Aftermarket Electronics

All MPS parts are lead-free and adhere to the RoHS directive. For MPS green

status, please visit MPS website under Quality Assurance. “MPS” and “The

Future of Analog IC Technology” are Registered Trademarks of Monolithic

Power Systems, Inc.

TYPICAL APPLICATION

INPUT

6.5V to 32V

OPEN

NOT USED

OUTPUT

2.5V

C4

4.7nF

D1

C2

10nF

MP2374

BS

IN

FB

SW

REF

GND

COMP

EN

1

3

5

6

4

8

7

2

OFF ON