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參數資料
| 型號： | SPX2954 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 250 mA Low Dropout Voltage Regulator（Output Programmable From 1.24V to 29V）(250mA，低壓差穩壓器（可編程輸出從1.24V-29V)) |
| 中文描述： | 250毫安低壓差穩壓器（輸出可編程從兩種器件的29V）（250mA的，低壓差穩壓器（可編程輸出從兩種器件- 29V）） |
| 文件頁數： | 1/7頁 |
| 文件大小： | 204K |
| 代理商： | SPX2954 |
Rev. 11/21/00
SPX2954
250 mA Low Drop Out Voltage Regulator
FEATURES
Output Accuracy 5V, 3.3V,@ 250mA Output
Very Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load And Line Regulation
Very Low Temperature Coefficient
Current & Thermal Limiting
Improved Replacement With Hight I
OUT
For LP2954 Sockets
SPX2954 Version Over LP2954
Error Flag Warns Of Output Dropout
Logic-Controlled Electronic Shutdown
Output Programmable From 1.24V to 29V
Input Can Withstand -20V Reverse Battery & +60 Positive Transient
PRODUCT DESCRIPTION
The SPX2954 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 SPX2954 features very low quiescent current (75
μ
A Typ.)
and very low dropout voltage. This includes a tight initial tolerance of
±
0.5% max and
±
1% max., and very low output temperature
coefficient, making the SPX2954 useful as a low-power voltage reference. The key SPX2954 features include protection against
reversed battery, fold-back current limiting, and automotive load dump protection (60V positive transient).
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.
Another feature is the logic compatible shutdown input which enables the regulator to be switched on and off. The SPX2954 is offered
in a 3-pin TO-92and TO-263 package compatible with other 5 volt regulators, in 8-Pin plastic, SO-8, (same pin out as SPX2951), TO-
220 and TO-263.
The regulator output voltage (of the 8-pin) may be pin-strapped for a 5Vand 3.3V or programmed from 1.24V to 29V with an external
pair of resistors. Look for SPX2951 for 150mA and LP2951 for 100mA applications.
TO-263-5 Package
TO-263-3 Package
8-Pin Surface Mount (S)
APPLICATIONS
Battery Powered Systems
Cordless Telephones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
Automotive Electronics
SMPS Post-Regulator
Voltage Reference
Avionics
TO-220-5 Package
Front View
SPX2954
GND
SHUTDOWN
ERROR
1)
3)
4)
5)
2) OUTPUT
INPUT
1 2 3 4 5
Front View
TO-220-3 Package
SPX2954
1
2
3
V
OUT
V
IN
GND
Top View
4 5
SPX2954
V
IN
V
OUT
V
ADJ
GND
SHUTDOWN
ERROR
1)
2) OUTPUT
3)
4)
5)
INPUT
SPX2954
Top View
1
2
3
3
2
1
Bottom View
1
3
2
OUTPUT
GND
INPUT
TO-92 (N)
Top View
2
1
3
4
8
7
6
5
SPX2954
SHUTDOWN
GND
INPUT
5V, 3.3V TAP
ERROR
FEEDBACK
SENSE
OUTPUT
SPX2954
1
3
2
V
OUT
GND
SOT-223 Package
Front View
V
IN
PIN CONNECTIONS
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相關代理商/技術參數 |
參數描述 |
|---|---|
| SPX2954_05 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:250mA Low Dropout Voltage Regulator |
| SPX2954AM3-3.3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:250 mA Low Drop Out Voltage Regulator |
| SPX2954AM3-3-3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:250mA Low Dropout Voltage Regulator |
| SPX2954AM3-5.0 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:250 mA Low Drop Out Voltage Regulator |
| SPX2954AM3-5-0 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:250mA Low Dropout Voltage Regulator |
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