MP3363

Single-String, 1.8V Minimum VIN, 36V VOUT

Boost LED Driver

MP3363 Rev. 1.0

MonolithicPower.com

1

9/28/2021

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© 2021 MPS. All Rights Reserved.

DESCRIPTION

The MP3363 is a fixed-frequency converter

ideal for low-current and high-current boost

applications. The low 0.2V feedback voltage

(VFB) offers higher efficiency in white LED driver

applications.

The MP3363 regulates the output voltage

(VOUT) up to 36V, with efficiency as high as

95%. Current mode regulation and external

compensation components allow the MP3363

control loop to be optimized across a wide

variety of input voltages.

The MP3363 supports analog dimming and

pulse-width modulation (PWM) dimming on

same pin. An input PWM signal with dimming

frequency below 2kHz initiates PWM dimming,

while an input PWM signal with dimming

frequency above 5kHz initiates analog dimming.

Soft start, cycle-by-cycle current limit, and input

under-voltage

lockout

(UVLO)

protection

prevent the sensitive external circuitry from

being damaged or overstressed during start-up

or potential overload current conditions.

The MP3363 is available in a TSOT23-8

package.

FEATURES

 Wide 1.8V to 36V Input Voltage Range

 1A Peak Current Limit

 0.5μA Shutdown Current

 Low 200mV Feedback Voltage (V

FB)

 200kHz to 2.2MHz Configurable Switching

Frequency (fSW)

 Internal 100mΩ, 40V Power Switch

 High Efficiency

 Analog Dimming and Pulse-Width

Modulation (PWM) Dimming

 Under-Voltage Lockout (UVLO) Protection

 Open/Short LED Protection

 Short FB to GND Protection

 Soft Start

 Thermal Shutdown (TSD)

 Available in a TSOT23-8 Package

APPLICATIONS

 Two AA Powered Backlighting

 LCD Backlighting

 General Lighting

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

SW

EN/DIM

1

COMP

3

4

5

OSC/

SYNC

GND

6

FB

7

8

OVP

+

+

VIN

RFB

ROVP1

ROVP2

CCOMP

COUT

CIN

L1

D1

VIN

2

ROSC

MP3363

GND