Datasheet > AS1129U-2.5

AS1129U-2.5

更新时间： 2024-11-10 03:36:39

品牌	Logo	应用领域
西伯斯 - SIPEX		/
页数	文件大小	规格书
4页	120K
描述
Fixed Positive LDO Regulator, PSFM3, TO-220, 3 PIN

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数据手册

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AS1129U-2.5 数据手册

AS1129

500mA Low Dropout Voltage Regulator

(PRELIMINARY INFORMATION)

FEATURES

APPLICATIONS

• Battery Powered Systems

• Cordless Telephones

• 1% Output Accuracy 2.5V, 3.3V, 5V, @ 500mA Output

• Very Low Quiescent Current

• 0.4V Dropout Voltage

• Radio Control Systems

• Portable/Palm Top/Notebook Computers

• Portable Consumer Equipment

• Portable Instrumentation

• Bar Code Scanners

• Extremely Tight Load and Line Regulation

• Current & Thermal Limiting

• Logic-Controlled Electronic Shutdown

• Reverse Battery Protection

• Output Programmable From 1.24 To 20V

• Equivalent Replacement For LT1129

• SMPS Post-Regulator

• Voltage Reference

• Automotive Electronics

PRODUCT DESCRIPTION

The AS1129 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 AS1129 features very low quiescent current and very low

dropout voltage of 0.4 volts. This includes a tight initial tolerance of 1% max, and very low output temperature coefficient, making

the AS1129 useful as a low-power voltage reference.

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.

The AS1129 is offered TO-92, SOT-223, TO-220, TO-252 and TO-263 in 3 & 5 leads.

ORDERING INFORMATION

TO-92

SOT-223

TO-220

3-PIN

TO-263

3/5-PIN

AS1129T-X

TO-263

5-PIN

AS1129T3-X

TO-252

3/5-PIN

AS1129R-X

Oper. Temp.

Range

-40°C to +125°C

3-PIN

AS1129N-X AS1129M3-X

AS1129U-X

X= Output Voltage (2.5V, 3.3V or 5.0V)

Consult factory for other fixed voltages.

PIN CONNECTIONS

TO-263-5 (T)

TO-252 (R)

TO-92 (N)

TO-263-3 (T)

SOT-223 (M3)

TO-220-3 (U)

V_IN

1) OUTPUT

2) SENSE/ ADJ

3) GND

4) SHDN

AS1129

GND

V_OUT

AS1129

V_OUT

4) V

V_INGND V_OUT

GND

V_IN

Top View

Front View

Bottom View

V_OUTGND V_IN

Top View

V_OUT

V_IN

GND

V_OUT

SHDN

Front View

<0.25V OFF

>2.8V

Rev. 10/11/00

12 3 4

中文翻译

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