MP158 –SMALL, ENERGY-EFFICIENT, OFF-LINE REGULATOR
PIN FUNCTIONS
Pin #
TSOT23-
SOIC-8
5
Pin #
Name
Description
1
2
1
2
VCC
FB
Control circuit power supply.
Regulator feedback.
3,4
3,4
SOURCE Internal power MOSFET source. Ground reference for VCC and FB pins.
5
7
DRAIN
N/C
Internal power MOSFET drain. High-voltage current source input.
Not connected.
5,6,8
MP158 Rev. 1.0
10/17/2014
www.MonolithicPower.com
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7
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