MP20051 – LOW NOISE HIGH PSRR 1A LINEAR REGULATOR

MP20051 Rev.1.11

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4

12/26/2013

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PIN FUNCTIONS

Pin #

Name

Pin Function

1, 2

VOUT

Regulator output. Bypass with a standard 4.7μF ceramic capacitor to GND. Connect all

the pins together externally.

3

FB

Feedback Input. Connect FB to the center point of the external resistor divider. The

feedback threshold voltage is 0.8V.

4

GND

Exposed pad

Ground. Connect exposed pad to GND plane for optimal thermal performance.

5

EN

Regulator Enable Control Input. Drive EN above 1.5V to turn on the MP20051. Drive EN

below 0.4V to turn it off. Do not float the EN pin.

6

NC

No Connection. Leave this NC pin open.

7, 8

VIN

Regulator Input. Supply voltage ranges from 2.5V to 5.5V. Bypass with 2.2μF capacitor.

These pins must be externally connected for proper operation even if they are internally

connected.