MP2149 –6V, 1A, LOW QUIESCENT CURRENT, DUAL, SYNC BUCK REGULATOR

MP2149 Rev.1.01

www.MonolithicPower.com

7

5/31/2013

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PIN FUNCTIONS

Package

Pin #

Name Description

1

FB2

Feedback 2. Error amplifier input. Connect to the tap of an external resistor divider between

the output and GND. Sets the regulation voltage.

2

EN2

Channel 2 Enable. Buck.

3

SW2

Switch Node Connects to the channel 2 internal high-side and low-side power MOSFETs.

Connects to the inductor.

4

EN1

Channel 1 Enable. Buck.

5

GND

Ground.

6

SW1

Switch Node Connects to the channel 1 internal high-side and low-side power MOSFETs.

Connects to the inductor.

7

IN

Input Supply. Requires a decoupling capacitor to ground to reduce switching spikes.

8

FB1

Feedback 1. Error amplifier input. Connect to the tap of an external resistor divider between

the output and GND. Sets the regulation voltage.