Datasheet > AS1521U-5.0

AS1521U-5.0

更新时间： 2024-11-08 03:25:07

品牌	Logo	应用领域
西伯斯 - SIPEX		/
页数	文件大小	规格书
5页	115K
描述
Fixed Positive LDO Regulator, 5V, 0.7V Dropout, PSFM3, TO-220, 3 PIN

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数据手册

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AS1521U-5.0 数据手册

AS1521

300mA Low Dropout Voltage Regulator

(PRELIMINARY INFORMATION)

FEATURES

APPLICATIONS

• Battery Powered Systems

• Cordless Telephones

• 1% Output Accuracy @ 2.5V, 3.3V, 5V, @ 300mA Output

• Very Low Quiescent Current

• Radio Control Systems

• Portable/Palm Top/Notebook Computers

• Portable Consumer Equipment

• Portable Instrumentation

• Bar Code Scanners

• 0.42V (Typ.) Dropout Voltage @ 300mA

• 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 LT1521

• SMPS Post-Regulator

• Voltage Reference

• Automotive Electronics

PRODUCT DESCRIPTION

The AS1521 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 AS1521 features very low quiescent current and very low

dropout voltage. This includes a tight initial tolerance of 1% max, and very low output temperature coefficient, making the AS1521

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 AS1521 is offered in a SO-8, SOT-252, TO-223, TO-220 & TO-263 packages.

ORDERING INFORMATION

SO-8

TO-252

SOT-223

TO-220

3-PIN

TO-263

3-PIN

Oper. Temp.

Range

-40°C to +125°C

3-PIN

AS1521M3-X

AS1521S-X AS1521R-X

AS1521U-X AS1521T-X

X= Output Voltage (2.5V, 3.3V, 5.0V, or Blank for Adj.)

PIN CONNECTIONS

TO-252 (R)

TO-263-3 (T)

TO-220-3 (U)

8-Pin Surface Mount (S)

SOT-223 (M3)

V_OUT

V_IN

AS1521

GND

V_OUT

SENSE/ ADJ

GND

SHDN

AS1521

V_INGND V_OUT

ERROR

Front View

Top 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 5

中文翻译

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与AS1521U-5.0相关器件

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AS1521U-5-0	SIPEX	获取价格	Regulator, 1 Output, BIPolar,
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AS1524-BTDR	AMSCO	获取价格	150ksps, 12-Bit, 1-Channel Pseudo/True-Differential and 2-Channel Single-Ended ADCs
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AS1525-BTDT	AMSCO	获取价格	150ksps, 12-Bit, 1-Channel Pseudo/True-Differential and 2-Channel Single-Ended ADCs