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參數(shù)資料
| 型號(hào)： | SPX2957S |
| 英文描述： | 350mA Low Drop Out Voltage Regulator with Shutdown |
| 中文描述： | 350mA的低壓差與關(guān)斷穩(wěn)壓器 |
| 文件頁(yè)數(shù)： | 1/9頁(yè) |
| 文件大?。?/td> | 184K |
| 代理商： | SPX2957S |
Rev. 11/21/00
ALPHA
1
2
3
4
8-Pin Surface Mount
Top View
5
6
7
8
AS2930
OUTPUT
SENSE
SHUTDOWN
GROUND
INPUT
FEEDBACK
5V/ 3.3V TAP
ERROR
SPX2955/56/57
350mA Low Drop Out Voltage Regulator
with Shutdown
(PRELIMINARY INFORMATION)
FEATURES
Output Accuracy 5V, 3.3V@ 350mA Output
Battery Powered Systems
Very Low Quiescent Current
Low Dropout Voltage
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
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
(100
μ
A 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
APPLICATIONS
Cordless Telephones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
Automotive Electronics
SMPS Post-Regulator
Voltage Reference
TO-263-5 Package
Top View
1 2 3 4 5
SPX2956/57
INPUT
GND
INPUT
ERROR
OUTPUT
GND
Five Lead Package Pin Functions:
SPX2956
SPX2957
1)
2)
3)
4)
5)
ADJUST
SHUTDOWN
OUTPUT
SHUTDOWN
Front View
3
2
1
TO-263-3 Package
V
OUT
GND
V
IN
SPX2955
Top View
SPX2956/57
TO-220-5 Package
5
4
3
2
1
Front View
TO-220-3 Package
S
1
2
3
V
OUT
GND
V
IN
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| SPX2956AT5-3.3 | 350mA Low Drop Out Voltage Regulator with Shutdown |
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| SPX2957 | 350mA Low Drop Out Voltage Regulator with Shutdown(350mA，低壓差穩(wěn)壓器(帶關(guān)斷)) |
| SPX2956AT3-3.3 | 350mA Low Drop Out Voltage Regulator with Shutdown |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SPX2957T3 | 制造商:SIPEX 制造商全稱(chēng):Sipex Corporation 功能描述:350mA Low Drop Out Voltage Regulator with Shutdown |
| SPX2957T5 | 制造商:SIPEX 制造商全稱(chēng):Sipex Corporation 功能描述:350mA Low Drop Out Voltage Regulator with Shutdown |
| SPX2957U3 | 制造商:SIPEX 制造商全稱(chēng):Sipex Corporation 功能描述:350mA Low Drop Out Voltage Regulator with Shutdown |
| SPX2957U5 | 制造商:SIPEX 制造商全稱(chēng):Sipex Corporation 功能描述:350mA Low Drop Out Voltage Regulator with Shutdown |
| SPX2967 | 制造商:SIPEX 制造商全稱(chēng):Sipex Corporation 功能描述:400mA Low Dropout Voltage Regulator |
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