B1121-Z-3.0 查看數據表（PDF） - Bay Linear

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B1121-Z-3.0

150mA Low Dropout Voltage Regulator

Bay Linear 

Bay Linear

Inspire the Linear Power

150mA Low Dropout Voltage Regulator

B1121

Description

The Bay Linear B1121 is a low power voltage regulator.

This device is an excellent choice for use in battery-

powered applications such as cordless telephones, radio

control systems, and portable computers. The B1121

features very low quiescent current and very low

dropout voltage of 0.40 volts. This includes a tight

initial tolerance of ± 1% max, and very low output

temperature coefficient, making the B1121 useful as a

low-power voltage reference.

The B1121 feature low quiescent current ( 75µA Typ.)

and low dropout of 40mV at light loads 400mV (typ.) at

150mA.

The Bay Linear B1121 is available in fixed voltages of 3.0V,

3.3V, and 5.0V in a SOT-223 and TO-92 packages.

Features

• 1% Output Accuracy @ 3.0V, 3.3V, 5.0V

• Very Low Quiescent Current

• 0.40V Low Dropout Voltage

• Extremely Tight Load and Line

Regulation

• Very Low Temperature Coefficient

• Needs only 1µF for Stability

• Current & Thermal Limiting

• Equivalent Replacement For LT1121

Applications

• Battery Powered Systems

• Portable instrumentation

• Notebooks Computers

• Potable Consumer Equipment

• Automotive electronics

• SMPS Post-Regulator

•

Pin Connection

TO-92 (Z)

Vout

Vin

Grd

SOT-223

Tab VOUT

IN GND OUT

Front View

Ordering Information

Package

SOT-223

TO-92

1%

B1121-R-XX

B1121-Z-XX

“XX” Voltage Selection Guide

Vout

5.0V

3.3V

3V

XX Code

5

3.3

3

Bay Linear, Inc 2478 Armstrong Street, Livermore, CA 94550 Tel: (925) 989-7144, Fax: (925) 940-9556

www.baylinear.com

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