MP20056 – LOW-NOISE, HIGH-PSRR, 250mA LINEAR REGULATOR

MP20056 Rev.1.1

www.MonolithicPower.com

5

12/17/2015

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PIN FUNCTIONS

Pin #

QFN-8

(2mmx2mm)

Pin #

TSOT23-5

Name

Pin Function

1,

Exposed

Pad

2

GND

Ground. Connect exposed pad to GND plane for optimal thermal

performance.

2

3

EN

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

MP20056. Drive EN below 0.4V to turn it off. Do not float the EN pin.

3, 4

1

VIN

Regulator Input. Supply voltage ranges from 2.5V to 5.5V. Bypass with a

2.2μF capacitor. These pins must be externally connected for proper

operation even if they are internally connected.

5, 6

5

VOUT

Regulator Output. Bypass with a standard 4.7μF ceramic capacitor to GND.

Connect all the pins together externally.

7

NC

No Connection. Leave this NC pin open.

8

4

FB

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

divider. The feedback threshold voltage is 0.8V.