MP111 – DYING GASP STORAGE AND RELEASE CONTROL IC

MP111 Rev. 1.0 1

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7

4/25/2018

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PIN FUNCTIONS

SOIC-8

Pin #

Name

Description

1

BST

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.

2

VIN

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

capacitor is needed to decouple the input rail.

3

FB2

Feedback to set release voltage.

4

GND

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.

5

FB1

Feedback to set storage voltage.

6

GASP

Open drain output to indicate dying gasp operation is active.

7

STRG

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

8

VMAX

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