MP2480

5V―36V Input, 3A High

Power LED Driver

MP2480 Rev. 1.01

www.MonolithicPower.com

1

1/25/2013

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

© 2013 MPS. All Rights Reserved.

The Future of Analog IC Technology

DESCRIPTION

The MP2480 is step-down switching regulator

that delivers a constant current of up to 3A to

high-power LEDs. It integrates a high-side,

high-voltage power MOSFET with a current limit

of 4.3A. The wide 5V to 36V input range

accommodates

a

variety

of

step-down

applications, making it ideal for general lighting

and LCD backlighting applications. Hysteretic

current-mode control helps provide for a very

fast response, which makes the 20kHz dimming

frequency possible. MPS’s proprietary feedback

control minimizes the number of external

components while delivering an LED current

with a typical accuracy of ±3%.

The switching frequency goes up to 2MHz, thus

permitting smaller components. Thermal shut

down, and short circuit protection provide

reliable

fault-tolerant operation. A

160µA

quiescent current allows for use in battery-

powered applications.

The MP2480 is available in SOIC8-EP with an

exposed pad on the bottom.

FEATURES

• Wide 5V to 36V Operating Input Range

• Up to 95% Efficiency

• Hysteretic Control with No Compensation

• No Output Capacitor Required

• ±3% LED Current Accuracy

• Up to 2MHz Switching Frequency

• Up to 20kHz Dimming Frequency

• 200mV Reference Voltage

• Short-Circuit Protection with Integrated

High-Side MOSFET

• Thermal Shut Down

• Available in SOIC8-EP

APPLICATIONS

• High Power LED Driver

• General Lighting and LCD Backlighting

• Constant Current Source

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