MP157 –SMALLEST ENERGY EFFICIENT OFF-LINE REGULATOR WITH EXTENDED POWER RANGE

MP157 Rev. 1.04

www.MonolithicPower.com

9

6/27/2016

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PIN FUNCTIONS

Pin #

TSOT23-5

Pin#

SOIC8

Name

Description

1

1

VCC

Power supply of all the control circuit.

2

2

FB

Feedback of the regulator.

3,4

3,4

SOURCE Source of internal power MOSFET. Ground reference for VCC and FB pins.

5

7

DRAIN

Drain of internal power MOSFET. Input of high voltage current source.

5,6,8

N/C

Not connected.