MIC23153 datasheet(13/26 Pages) MICROCHIP

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DS20006489B-page 13

MIC23153

3.0

PIN DESCRIPTIONS

The descriptions of the pins are listed in Table 3-1.

TABLE 3-1:

PIN FUNCTION TABLE

Pin Number

(Fixed)

Pin Number

(Adjustable)

Name

Description

Switch (Output): Internal power MOSFET output switches.

Enable (Input): Logic high enables operation of the regulator. Logic

low will shut down the device. Do not leave floating.

SNS

Sense: Connect to VOUT as close to output capacitor as possible to

sense output voltage.

—

Not Internally Connected.

—

Feedback: Connect a resistor divider from the output to ground to set

the output voltage.

Power Good: Open-drain output for the power good indicator. Use a

pull-up resistor from this pin to a voltage source to detect a power

good condition.

Soft-Start: Place a capacitor from this pin to ground to program the

soft start time. Do not leave floating, 100 pF minimum CSS is

required.

AGND

Analog Ground: Connect to central ground point where all high

current paths meet (CIN, COUT, PGND) for best operation.

8, 9

VIN

Input Voltage: Connect a capacitor to ground to decouple the noise.

PGND

Power Ground.

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