April 2001

3

MIC5219

MIC5219

Micrel

Pin Description

Pin No.

Pin No.

Pin Name

Pin Function

MSOP-8

SOT-23-5

2

1

IN

Supply Input

5–8

2

GND

Ground: MSOP-8 pins 5 through 8 are internally connected.

3

5

OUT

Regulator Output

1

3

EN

Enable (Input): CMOS compatible control input. Logic high = enable; logic

low or open = shutdown.

4 (fixed)

4 (fixed)

BYP

Reference Bypass: Connect external 470pF capacitor to GND to reduce

output noise. May be left open.

4 (adj.)

4 (adj.)

ADJ

Adjust (Input): Feedback input. Connect to resistive voltage-divider network.