© 2004 California Micro Devices Corp. All rights reserved.

2

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01/20/04

CM3102

Ordering Information

Note 1: Parts are shipped in Tape & Reel form unless otherwise specified.

PIN DESCRIPTIONS

PIN

NAME

DESCRIPTION

1

IN

Positive input voltage for the regulator. The internal loading on this input is typically 300

µA when-

ever the regulator is enabled, and less than 1

µA when the regulator is disabled. Although an input

filter capacitor is not required, it is recommended that a 1

µF ceramic capacitor be used for addi-

tional filtering and stability if this pin is greater than 2 inches from the main input filter.

2

GND

The negative reference for all voltages.

3

EN

mode and an internal discharge resistance (500

put voltage to 0 volts.

4

PG

Power Good output. This is an open drain output and functions as a supply voltage supervisor for

the output voltage. It is asserted low when the output falls below 89% of its nominal value. This out-

5

OUT

The regulated voltage output. An output capacitor of 1

µF is recommended to minimize any tran-

sient load disturbances under normal operating conditions. Additional output capacitance can be

used to further improve transient load response.

PACKAGE / PINOUT DIAGRAM

Note: This drawing is not to scale.

5-pin SOT23

IN

GND

EN

OUT

PG

1

2

5

3

4

Top View

PART NUMBERING INFORMATION

Regulator

Pins

Package

Standard Finish

Lead-free Finish

Ordering Part

Part Marking

Ordering Part

Part Marking

CM3102-12

5

SOT23-5

CM3102-12ST

BA12

CM3102-12SO

BB12