MP2410A

– 24V, 2A, 1MHZ, SYNCHRONOUS, STEP-DOWN, LED DRIVER

MP2410A Rev. 1.0

www.MonolithicPower.com

9

4/25/2016

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© 2016 MPS. All Rights Reserved.

PIN FUNCTIONS

Pin #

Name

Description

TSOT23-6

TSOT23-8

1

5

GND

Ground. GND is the voltage reference for the regulated output voltage.

Give careful consideration to GND during layout.

2

6

SW

Switch output.

3

7

VIN

Supply voltage. The MP2410A operates on a 4.2V to 24V, unregulated

input. An input capacitor is needed to prevent large voltage spikes from

appearing at the input.

4

2

FB

Current sense feedback voltage.

FB’s internal reference voltage is 0.1V.

5

3

EN/DIM

On/off control input and dimming command input. Leaving EN/DIM

floating or applying a voltage higher than 0.59V on EN/DIM turns on the

MP2410A. For analog dimming, when the EN/DIM voltage rises up from

0.7V to 1.44V, the output current changes from its min value to the full-

scale LED current. For PWM dimming, apply a 100Hz to 2kHz PWM

signal with an amplitude higher than 1.5V to EN/DIM.

6

4

BST

Bootstrap. Connect a capacitor between SW and BST to form a floating

supply across the power switch driver. This capacitor is needed to drive

the power switch’s gate above the supply voltage.

-

1

NTC

LED temperature protection. Connect an NTC resistor from NTC to

GND to reduce the output current to protect the LED when the ambient

temperature rises up at high levels.

-

8

NC

No connection.