CYStech Electronics Corp.

Spec. No. : C503A3

Issued Date : 2003.03.21

Revised Date :

Page No. : 1/4

PL2950A3

CYStek Product Specification

100mA Low Dropout Voltage Regulators

PL2950-XXA3

FEATURES

APPLICATIONS

• Battery powered systems

• High accuracy output voltage

• Cordless telephones

• Guaranteed 100mA output

• Radio control systems

• Very low quiescent current

• Portable/Palm top/Notebook computers

• Low dropout voltage

• Portable consumer equipment

• Extremely tight load and line regulation

• Portable Instrumentation

• Very low temperature coefficient

• Avionics

• Needs only 1µF for stability

• Automotive Electronics

• Error Flag warns of output dropout

• SMPS Post-Regulator

• Logic-Controlled electronic shutdown

• Voltage Reference

• Output programmable from 1.24 to 29V

PRODUCT DESCRIPTION

ThePL2950-XX is a low power voltage regulator. This device excellent choice for use in battery powered application such as cordless

telephone, radio control systems, and portable computers.

The PL2950-XX features very low quiescent current (75

µA Typ.) and very low drop output voltage (Typ. 40mV 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 PL2950-XX useful as a low-power voltage reference.

The error flag output feature is used as power-on reset for warn of a low output voltage, due to following batteries on input. Other feature

is the logic-compatible shutdown input which enable the regulator to be switched on and off.

The PL2950-XX is offered in 3-pin TO-92 package compatible with other fixed regulator.

Absolute Maximum Ratings

Device Selection Guide

* - other versions are also available

Vout = 2.0V to 5.0V. Please consult factory for

more information

Power Dissipation

Internally Limited

Lead Temperature

(Soldering, 5 seconds)

260℃

Storage Temperature Range

-65

°C to+150°C

Operating Junction Temperature Range -55

°C to +150°C

Input Supply Voltage

-0.3 to +30V

Feedback Input Voltage

-1.5 to +30V

Shutdown Input Voltage

-0.3 to +30V

Error Comparator Output

-0.3 to +30V

Vout

, Volts

Device

2.85*

PL2950-2.85

3.0

PL2950-3.0

3.3

PL2950-3.3

5.0

PL2950

TO-92