SPX2957T5

更新时间： 2024-11-27 22:17:39

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
描述
350mA Low Drop Out Voltage Regulator with Shutdown

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中文翻译

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SPX2957T5 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SPX2957T5相关器件

型号	品牌	获取价格	描述	数据表
SPX2957U3	SIPEX	获取价格	350mA Low Drop Out Voltage Regulator with Shutdown
SPX2957U5	SIPEX	获取价格	350mA Low Drop Out Voltage Regulator with Shutdown
SPX2967	SIPEX	获取价格	400mA Low Dropout Voltage Regulator
SPX2967T	SIPEX	获取价格	400mA Low Dropout Voltage Regulator
SPX2967T/TR	SIPEX	获取价格	Fixed Positive LDO Regulator, 5V, 0.6V Dropout, PSSO7, TO-263, 7 PIN
SPX2967T-L	SIPEX	获取价格	Fixed Positive LDO Regulator, 5V, 0.6V Dropout, PSSO7, LEAD FREE, TO-263, 7 PIN
SPX2967T-L/TR	SIPEX	获取价格	Fixed Positive LDO Regulator, 5V, 0.6V Dropout, PSSO7, LEAD FREE, TO-263, 7 PIN
SPX2967U	SIPEX	获取价格	400mA Low Dropout Voltage Regulator
SPX2969	SIPEX	获取价格	150mA Low Dropout Voltage Regulator
SPX2969CS-L/TR	SIPEX	获取价格	Fixed Positive LDO Regulator, 5V, 0.5V Dropout, PDSO8, LEAD FREE, MS-012AA, SOIC-8

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