MIC47050-1.8YMTTR

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MIC47050-1.8YMTTR 数据手册

Micrel, Inc.

MIC47050

Pin Description

Fixed

ADJ

Pin Name

BIAS

Pin Function

Bias Supply. The bias supply is the power supply for the internal circuitry of the

regulator.

GND

Ground. Ground pins and exposed pad must be connected externally.

Input Supply. Drain of NMOS pass transistor which is the power input voltage for

regulator. The NMOS pass transistor steps down this input voltage to create the

output voltage.

OUT

Output. Output Voltage of Regulator.

Power Good Output. Open-drain output. Output is driven low when the output voltage

is less than the power good threshold of its programmed nominal output voltage.

When the output goes above the power good threshold, the open-drain output goes

high-impedance, allowing it to be pulled up to a fixed voltage.

–

PGOOD

–

ADJ

Adjust Input. Connect external resistor divider to program the output voltage.

Enable: TTL/CMOS compatible input. Logic high = enable, logic low = shutdown. Do

not leave floating.

GND

Exposed thermal pad. Connect to the ground plane to maximize thermal performance.

M9999-040312-B

April 2012

1 234 5 6 7...16

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