MP2498

Integrated 100V Load Dump Protection,

2A Step-Down Regulator

MP2498 Rev. 1.0

www.MonolithicPower.com

1

8/7/2012

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© 2012 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2498 is a high frequency monolithic

step-down

switch

mode

converter

with

integrated buck internal high side high voltage

power MOSFET and an integrated input

overvoltage protection. It provides 2A output

with current mode control for fast loop response

and easy compensation.

The wide 6.5V to 30V input range of the buck

regulator accommodates a variety of step-down

applications, including those in automotive input

environment.

High power conversion efficiency over a wide

load range is achieved by scaling down the

switching frequency at light load condition to

reduce the switching and gate driving losses.

Fault condition protection includes cycle-by-

cycle current limiting and thermal shutdown.

The

MP2498

can

survive

high-voltage

transients such as those found in automotive

and industrial applications.

The MP2498 requires a minimum number of

readily available standard external components.

The MP2498 is available in a 28-pin QFN

package.

FEATURES

• 100V Switch for load dump protection

• Eliminate External Transorb and Fuse

• 250mΩ Internal MOSFET in Buck Regulator

• 150kHz to 2MHz Programmable Switching

Frequency to Reduce Radio Interference

• 120μA Quiescent Current

• Ceramic Capacitor Stable

• Up to 95% Efficiency

• Output Adjustable from 0.8V to 15V

• Available in a 4x5mm 28-Pin QFN Package

APPLICATIONS

• Automotive Electronics

• Industrial Power Systems

• Distributed Power Systems

• Power Supply for Linear Charger

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