Elektronische Bauelemente

ST2123

CMOS Positive

Voltage Regulator

*

Adjustable Output Voltage

Features

* High Accurate

* Over-Temperature Shutdown

1.5%

* Very Low Dropout Voltage

*

Low Temperature Coefficient

* Short Circuit Current Fold-back

* Guaranteed 300mA output

* Current Limiting

* Portable Electronics

Applications

* PC Peripherals

* Wireless Devices

* Battery Powered Widgets

* Electronic Scales

* Instrumentation

* Cordless Phones

and Current Fold-back to prevent device failure under the "Worst" of

operating conditions. The SOT-26 version also features a "Power Good"

detector, which pulls low when the output is out of regulation.

The ST2123 is stable with an output capacitance of 2.2µF or greater.

01-Jun-2002 Rev. A

Page 1 of 8

http://www.SeCoSGmbH.com/

Any changing of specification will not be informed individual

RoHS Compliant Product

Typical Application Circuit

Functional Block Diagram

Description

The ST2123 series of positive,linear regulators feature low quiescent

current (35µA typ.) with low dropout voltage, making them ideal

f

or battery applications. These rugged devices have both Thermal Shutdown,

ST2123

REF.

Min.

Max.

REF.

Millimeter

A

2.70

3.10

G

1.90 REF.

B

2.60

3.00

H

1.20 REF.

C

1.40

1.80

I

0.12 REF.

D

0.30

0.55

J

0.37 REF.

E

0

0.10

K

0.60 REF.

F

0°

10°

L

0.95 REF.

Millimeter

Dimensions

*

Power Good Detector

*

Power-Saving Shutdown Mode

±