MP2161A – 2A, 6V, 1.5MHz SYNCHRONOUS STEP-DOWN CONVERTER

MP2161A Rev. 1.02

www.MonolihicPower.com

9

6/30/2016

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

© 2016 MPS. All Rights Reserved.

PIN FUNCTIONS

Pin #

Name Description

1

PG

Power good indicator. The output of PG is an open drain with an internal pull-up resistor

to VIN. PG is pulled up to VIN when the FB voltage is within ±10% of the regulation level.

If FB voltage is out of that regulation range, it is low.

2

VIN

Supply voltage. The MP2161A operates from a +2.5V to +6V unregulated input. C1 is

needed to prevent large voltage spikes from appearing at the input.

3

SW

Switch output.

4

PGND Power ground.

5

OUT

Input sense for output voltage.

6

AGND Analogy ground for internal control circuit.

7

FB

Feedback. An external resistor divider from the output to AGND (tapped to FB) sets the

output voltage.

8

EN

On/off control.