MP2141N

– 1A, SYNCHRONOUS, STEP-DOWN CONVERTER WITH 11µA I

Q

MP2141N Rev. 1.12

www.MonolithicPower.com

11

7/28/2017

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

© 2017 MPS. All Rights Reserved.

PIN FUNCTIONS

Pin # Name Description

1

FB/PG

MP2141NGTF: Feedback. An external resistor divider from the output to GND tapped to FB sets

the output voltage.

MP2141NGTF-18: Power Good Indicator. The output of this pin is an open drain with external

pull up resistor to Vin.

2

GND

Power ground.

3

VIN

Supply voltage. The MP2141N operates from a +2.3V to +5.5V unregulated input. A decoupling

capacitor is needed to prevent large voltage spikes from appearing at input.

4

SW

Output switching node. SW is the drain of the internal high-side P-channel MOSFET. Connect

the inductor to SW to complete the converter.

5

EN

On/off control.

6

OUT

Output voltage power rail and input sense. Connect the load to OUT. An output capacitor is

needed to decrease the output voltage ripple.