SPX2955S

更新时间： 2024-11-28 13:13:55

品牌	Logo	应用领域
西伯斯 - SIPEX		稳压器
页数	文件大小	规格书
9页	187K
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中文翻译

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SPX2955S 数据手册

SPX2955/56/57

350mA Low Drop Out Voltage Regulator

with Shutdown

(PRELIMINARY INFORMATION)

FEATURES

APPLICATIONS

• Output Accuracy 5V, 3.3V@ 350mA Output

• Very Low Quiescent Current

• Battery Powered Systems

• Cordless Telephones

• Low Dropout Voltage

• Radio Control Systems

• Portable/Palm Top/Notebook Computers

• Portable Consumer Equipment

• Portable Instrumentation

• Automotive Electronics

• SMPS Post-Regulator

• Extremely Tight Load And Line Regulation

• Very Low Temperature Coefficient

• Current & Thermal Limiting

• Error Flag Warns Of Output Dropout

• Logic-Controlled Electronic Shutdown

• Output Programmable From 1.24V to 29V

• Voltage Reference

PRODUCT DESCRIPTION

The SPX2955/56/57 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 SPX2955/56/57 features very low quiescent current

(100µA Typ.) and very low dropout voltage. This includes a tight initial tolerance of 1% max and 2% max., and very low output

temperature coefficient, making the SPX2955/56/57 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 a falling voltage input of batteries.

Another feature is the logic-compatible shutdown input which enables the regulator to be switched on and off. The SPX2955/56/57 is

offered in 3-pin and 5-pin TO-220 package compatible with other 5 volt and adjustable regulators, in 8-Pin Plastic Dip SO-8 (same pin

out as SPX2951) and surface mount TO-263 packages.

The regulator output voltage (of the 8-pin package and 5-pin TO-220 & TO-263) may be pin-strapped for a 5V and 3.3V or

programmed from 1.24V to 29V with an external pair of resistors. Look for SPX2951 for 150mA and SPX2954 for 250mA

applications.

PIN CONNECTIONS

TO-220-3 Package

TO-263-5 Package

SPX2956/57

TO-220-5 Package

8-Pin Surface Mount

V_OUT

GND

V_IN

OUTPUT

SENSE

INPUT

FEEDBACK

ALPHA

SPX2955

Five Lead Package Pin Functions:

AS2930

SPX2956/57

SHUTDOWN

Front View

5V/ 3.3V TAP

ERROR

SPX2956

SPX2957

ADJUST

SHUTDOWN

GND

GROUND

ERROR

INPUT

GND

TO-263-3 Package

Top View

V_OUT

OUTPUT

INPUT

2 3 4

SPX2955

GND

V _IN

SHUTDOWN OUTPUT

1 2 3 4 5

Top View

Front View

Rev. 11/21/00

12 3 4 5 6 7...9

中文翻译

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与SPX2955S相关器件

型号	品牌	获取价格	描述	数据表
SPX2955S-5.0	SIPEX	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.6V Dropout, PDSO8, PLASTIC,
SPX2955T5-3.3	SIPEX	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.6V Dropout, PSSO5, TO-263,
SPX2955U5-5.0	SIPEX	获取价格	Fixed/Adjustable Positive LDO Regulator, 1.24V Min, 29V Max, 0.6V Dropout, PSFM5, TO-220,
SPX2956AS-3.3	SIPEX	获取价格	Analog Circuit,
SPX2956AS-5.0	SIPEX	获取价格	Analog Circuit,
SPX2956AT3-3.3	SIPEX	获取价格	350mA Low Drop Out Voltage Regulator with Shutdown
SPX2956AT3-5.0	SIPEX	获取价格	350mA Low Drop Out Voltage Regulator with Shutdown
SPX2956AT5-3.3	SIPEX	获取价格	350mA Low Drop Out Voltage Regulator with Shutdown
SPX2956AT5-5.0	SIPEX	获取价格	350mA Low Drop Out Voltage Regulator with Shutdown
SPX2956S-3.3	SIPEX	获取价格	350mA Low Drop Out Voltage Regulator with Shutdown

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