MP23701

24V, 2A, 1.5MHz, Synchronous,

Step-Down LED Driver

MP23701 Rev. 1.0

www.MonolithicPower.com

1

3/22/2019

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

© 2019 MPS. All Rights Reserved.

DESCRIPTION

The

MP23701

is

a

24V,

monolithic,

synchronous, step-down, white LED driver with

a built-in power MOSFET and rectifier. The

MP23701 can achieve up to 2A of continuous

output current with excellent load and line

regulation.

Peak-current

mode

operation

provides fast transient response and easy loop

stabilization.

The

MP23701

implements

deep

analog

dimming. Full protection features include cycle-

by-cycle peak-current limiting, output short-

circuit protection (SCP), open LED protection,

NTC thermal protection, and thermal shutdown.

The MP23701 requires a minimal number of

readily

available,

standard,

external

components and is available in a UTQFN-8

(1.5mmx2.5mm) package.

FEATURES

 4.2V to 24V Wide Input Range

 Synchronous Step-Down Converter

 100mΩ Internal High-Side Power MOSFET

 80mΩ Internal Low-Side Synchronous

Rectifier

 Peak-Current Mode Control

 Up to 2A Continuous Output Current

 100mV Feedback Voltage

 Up to 97% Efficiency

 Fixed 1.5MHz Switching Frequency

 Analog Dimming

 Cycle-by-Cycle Current Limit

 Inherent LED Open Protection

 Output Short-Circuit Protection (SCP)

 NTC Thermal Protection

 Thermal Shutdown

 Auto-Restart Function

 Available in a UTQFN-8 (1.5mmx2.5mm)

Packages

APPLICATIONS

 Infrared LED Drivers

 General LED Drivers

 Flashlights

 Handheld Computer Backlight

All MPS parts are lead-free, halogen-free, and adhere to the RoHS

directive. For MPS green status, please visit the MPS website under

Quality Assurance. “MPS”, the MPS logo, and “Simple, Easy Solutions” are

trademarks of Monolithic Power Systems, Inc. or its subsidiaries.

TYPICAL APPLICATION

VIN (V)

84

86

88

90

92

94

96

98

100

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