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參數(shù)資料
| 型號(hào)： | SPX2951CS-L-3.0 |
| 元件分類： | 固定／可調(diào)正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器 |
| 英文描述： | FIXED/ADJUSTABLE POSITIVE LDO REGULATOR, 0.5 V DROPOUT, PDSO8 |
| 封裝： | PLASTIC, SOIC-8 |
| 文件頁數(shù)： | 1/12頁 |
| 文件大?。?/td> | 258K |
| 代理商： | SPX2951CS-L-3.0 |
Rev. 10/30/00
SPX2950/SPX2951
150mA Low Dropout Voltage Regulators
FEATURES
APPLICATIONS
5.0V, 3.3V, and 3.0V Versions at 150mA Output
Battery Powered Systems
Very Low Quiescent Current
Cordless Telephones
Low Dropout Voltage
Radio Control Systems
Extremely Tight Load and Line Regulation
Portable/Palm Top/Notebook Computers
Very Low Temperature Coefficient
Portable Consumer Equipment
Needs Only 1F for Stability
Portable Instrumentation
Current & Thermal Limiting
Avionics
Unregulated DC Input can Withstand -20V Reverse Battery
Automotive Electronics
and +60V Positive Transients
SMPS Post-Regulator
Similar Replacement With Higher IOUT for LP2950/LP2951 Sockets
Voltage Reference
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.
V
IN
Bottom View
13
2
V
OUT
GND
TO-92 (N)
PIN CONNECTIONS
ALPHA
AS2930
1
8-Pin Surface Mount
Top View
2
3
4
5
6
7
8
SPX2951
OUTPUT
SENSE
SHUTDOWN
GROUND
INPUT
FEEDBACK
5V or 3.3V TAP
ERROR
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相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| SPX2951CS-L-3-3 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SPX2951CS-L-5-0 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SPX2951CS-L-5-0/TR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Exar Corporation 功能描述: |
| SPX2954 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:250 mA Low Drop Out Voltage Regulator |
| SPX2954_05 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:250mA Low Dropout Voltage Regulator |
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