MP3362

– SINGLE-STRING, 3V MINIMUM Vin, 36V BOOST LED DRIVER

MP3362 Rev. 1.1

www.MonolithicPower.com

3

2/22/2023

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

© 2023 MPS. All Rights Reserved.

PIN FUNCTIONS

Pin #

Name

Description

1

SW

Output switch node. SW is the drain of the internal N-channel MOSFET. Connect the

inductor and rectifier to SW to complete the boost converter.

2

VIN

Input supply pin.

This pin can be connected to the regulator’s input supply or to the output

for bootstrap operation.

3

COMP

Error amplifier output compensation. Connect the COMP pin to a series RC network to

compensate the regulator control loop.

4

EN/

DIM

Enable and dimming pin. Used the EN/DIM pin to enable/disable the device, or to initiate

PWM dimming or analog dimming. The following conditions determine how this pin operates:

1. Keep the EN/DIM pin low for 20ms to disable the IC.

2. Apply a <2kHz PWM signal frequency to make the IC work in PWM dimming mode.

3. Apply a >5kHz PWM signal frequency to make the IC work in analog dimming mode.

5

OSC/

SYNC

Switching frequency setting and synchronization pin. Connect a resistor to this pin to

program the switching frequency. Apply a pulse signal between 200kHz and 2.2MHz to

synchronize the switching frequency.

6

FB

Regulation feedback input. The regulation threshold is 0.2V.

7

OVP

Open LED protection pin. OVP pin senses the output voltage to protect the IC during open

LED operation.

8

GND

Ground.