150mA Low Dropout

Voltage Regulators

CLM2950 / CLM2951

FEATURES

Battery and +60V Positive Transients

CLM2951 Versions Only

APPLICATIONS

PRODUCT DESCRIPTION

Calogic’s CLM2950 and CLM2951 are low power voltage

regulators. These devices are an excellent choice for use in

battery-powered applications such as cordless telephones,

radio control systems, and portable computers. The CLM2950

and CLM2951 features very low quiescent current and very

low dropout voltage (Typ. 50mV at light load and 380mV at

100mA). This includes a tight initial tolerance of 0.5% typ.,

extremely good load and line regulation of 0.05% typ. and

very

low

output

temperature

coefficient,

making

the

CLM2950/CLM2951 useful as a low-power voltage reference.

Other key additional features of this device includes higher

output current (150mA), positive transient protection up to 60V

(Load dump), and the ability to survive an unregulated input

voltage transient of -20V below ground (reverse battery).

The error flag output feature is used as power-on reset for

warning of a low output voltage, due to falling voltage input of

batteries. Another feature is the logic-compatible shutdown

input which enables the regulator to be switched on and off.

The CLM2950 is offered in a 3-pin TO-92 package compatible

with other 5 volt regulators. The CLM2951 is also available in

8-pin plastic and SO-8.

The regulator output voltage may be pin-strapped for a 5V,

3.3V and 3.0 volts or programmed from 1.24 volt to 29 volts

with an external pair of resistors.

ORDERING INFORMATION

PART

PACKAGE

TEMPERATURE RANGE

CLM2950ACN-X

TO-92 (3-Pin)

IND.

CLM2950CN-X

TO-92 (3-Pin)

IND.

CLM2951ACP-X

Plastic DIP (8-Pin)

IND.

CLM2951CP-X

Plastic DIP (8-Pin)

IND.

CLM2951ACS-X

Plastic SOIC (8-Pin)

IND.

CLM2951CS-X

Plastic SOIC (8-Pin)

IND.

X = 3.0V, 3.3V or 5.0V

CORPORATION

PIN CONNECTIONS

1D-47

123

1. OUTPUT

2. GROUND

3. INPUT

TO-92

BOTTOM VIEW

GROUND

1

2

3

8

7

6

4

5

ERROR

CLM2951

1D-46

8-PIN SURFACE MOUNT

5V OR 3.3V TAP

FEEDBACK

INPUT

SHUTDOWN

SENSE

OUTPUT

TOP VIEW

CALOGIC CORPORATION, 237 Whitney Place, Fremont, California 94539, Telephone: 510-656-2900, FAX: 510-651-3025