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參數資料
| 型號： | SPX2951 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 150mA Low Dropout Voltage Regulators （Output Programmable From 1.24V to 29V）(150mA，低壓差穩壓器（可編程輸出從1.24V-29V)) |
| 中文描述： | 150mA的低壓差穩壓器（輸出可編程從兩種器件的29V）（150毫安，低壓差穩壓器（可編程輸出從兩種器件- 29V）） |
| 文件頁數： | 1/12頁 |
| 文件大小： | 258K |
| 代理商： | SPX2951 |
Rev. 10/30/00
SPX2950/SPX2951
150mA Low Dropout Voltage Regulators
FEATURES
5.0V, 3.3V, and 3.0V Versions at 150mA Output
Very Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Needs Only 1
μ
F for Stability
Current & Thermal Limiting
Unregulated DC Input can Withstand -20V Reverse Battery
and +60V Positive Transients
Similar Replacement With Higher I
OUT
for LP2950/LP2951 Sockets
SPX2951 Versions Only
Error Flag Warns of Output Dropout
Logic-Controlled Electronic Shutdown
Output Programmable From 1.24V to 29V
PRODUCT DESCRIPTION
The SPX2950 and SPX2951 are low power voltage regulators. These devices are an excellent choice for use in battery-powered
applications such as cordless telephones, radio control systems, and portable computers. The SPX2950 and SPX2951 feature very low
quiescent current and very low dropout voltage (Typ. 50mV at light load and 380mV at 100mA). This include a tight initial tolerance
of 0.5% typ., extremely good load and line regulation of 0.05% typ. and very low output temperature coefficient, making the
SPX2950/SPX2951 useful as a low-power voltage reference. Other key additional features of this device includes higher output
current (150mA), positive transient protection up to 60V (Load dump), and the ability to survive an unregulated input voltage transient
of -20V below ground (reverse battery).
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 SPX2950 is
offered in a 3-Pin TO-92 package compatible with other 5V regulators. The SPX2951 is also available in 8-Pin Plastic, SO-8 and
TO-99 metal can packages.
The regulator output voltage may be pin-strapped for a 5V, 3.3V and 3.0V or programmed from 1.24V to 29V with an external pair of
resistors. Look for SPX2954 for 250mA and SPX2955 for 350mA.
Top View
APPLICATIONS
Battery Powered Systems
Cordless Telephones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
Avionics
Automotive Electronics
SMPS Post-Regulator
Voltage Reference
V
IN
Bottom View
1
3
2
V
OUT
GND
TO-92 (N)
PIN CONNECTIONS
SPX2951
1
8-Pin Surface Mount
2
4
5
6
7
8
OUTPUT
SENSE
SHUTDOWN
GROUND
INPUT
FEEDBACK
5V or 3.3V TAP
ERROR
相關PDF資料 |
PDF描述 |
|---|---|
| SPX2954 | 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)) |
| SPX432 | 1.24V Precision Adjustable Shunt Regulator(1.24V精密可調分流穩壓器) |
| SPX432AM | Ultra 1.24V Precision Adjustable Shunt Regulator |
| SPX432AM5 | Ultra 1.24V Precision Adjustable Shunt Regulator |
| SPX432AN | Ultra 1.24V Precision Adjustable Shunt Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| SPX2951ACS-3.0 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:150mA Low Dropout Voltage Regulators |
| SPX2951ACS-3.3 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:150mA Low Dropout Voltage Regulators |
| SPX2951ACS-3-3 | 制造商:Exar Corporation 功能描述: |
| SPX2951ACS-5.0 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:150mA Low Dropout Voltage Regulators |
| SPX2951ACS-L-3-3 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
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