MIC5209 datasheet(11/30 Pages) MICROCHIP

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DS20005720B-page 11

MIC5209

3.0

PIN DESCRIPTIONS

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

TABLE 3-1:

PIN FUNCTION TABLE

Pin Number

8-Pin VDFN

Pin Number

SOT-223

Pin Number

SOIC-8

Pin Number

DDPAK

Pin Name

Description

1, 2

Supply Input.

2, TAB

5, 6, 7, 8

3, TAB

GND

Ground: SOT-223 Pin 2 and TAB are

internally connected. SOIC-8 Pins 5

through 8 are internally connected.

3, 4

OUT

Regulator Output: Pins 3 and 4 must

be tied together.

—

Not Connected.

—

Enable (Input): CMOS-compatible

control input. Logic-High = Enable;

Logic-Low = Shutdown.

—

4 (Fixed)

5 (Fixed)

BYP

Reference Bypass: Connect external

470 pF capacitor to GND to reduce

output noise. Can be left open. For

1.8V or 2.5V operation, see Application

Information.

—

4 (Adjustable) 5 (Adjustable)

ADJ

Adjust (Input): Feedback input.

Connect to resistive voltage-divider

network.

—

ePad

Exposed Thermal Pad: Connect to

GND for best thermal performance.

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