MP111 View Datasheet(PDF) - Monolithic Power Systems

Part Name

Description

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MP111

Dying Gasp Storage and Release Control IC

Monolithic Power Systems 

MP111 – DYING GASP STORAGE AND RELEASE CONTROL IC

PIN FUNCTIONS

SOIC-8

Pin #

1

2

3

4

5

6

7

8

Name

BST

VIN

FB2

GND

FB1

GASP

STRG

VMAX

Description

Bootstrap. A capacitor and a resistor in series connected between this pin and DC/DC

converter’s SW node is required to charge storage capacitor.

Supply Voltage. The MP111 operates from a +4.5V to +18V input rail. Input decoupling

capacitor is needed to decouple the input rail.

Feedback to set release voltage.

System Ground. This pin is the reference ground of the regulated output voltage.

For this reason care must be taken in PCB layout. Suggested to be connected to

GND with copper and vias.

Feedback to set storage voltage.

Open drain output to indicate dying gasp operation is active.

Connect to storage capacitor for dying gasp storage and release operation.

Internal Supply. A 2.2nF ceramic capacitor is required for decoupling.

MP111 Rev. 1.0 1

www.MonolithicPower.com

7

4/25/2018

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