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參數資料
| 型號： | LP2950 |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 100 mA Low Dropout Voltage Regulators(100mA,低壓差穩(wěn)壓器) |
| 中文描述： | 一百毫安低壓差穩(wěn)壓器（100mA的電流，低壓差穩(wěn)壓器） |
| 文件頁數： | 1/12頁 |
| 文件大小： | 297K |
| 代理商： | LP2950 |
Rev. 11/2/00
LP2950/LP2951
100 mA Low Dropout Voltage Regulators
FEATURES
5.0V, 3.3V and 3.0V Versions @ 100mA Output
Battery Powered Systems
Very Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Current & Thermal Limiting
Need Only 1
μ
F for Stability
Offered in TO-263 & SOIC
Direct Replacement For LP2950/LP2951 Sockets
LP2951 versions only
Error Flag Warns of Output Dropout
Logic-Controlled Electronic Shutdown
Output Programmable From 1.24 to 29V
PRODUCT DESCRIPTION
The LP2950 and LP2951 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 LP2950 and LP2951 features low
quiescent current and very low dropout voltage (Typ. 50mV at light load and 380 mV at 100mA). This includes a tight initial
tolerance of 0.5% typ., extremely good load and line regulation 0.05% typ., and very low output temperature coefficient, making the
LP2950/LP2951 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 falling voltage input of batteries.
Another feature is the logic-compatible shutdown input which enables the regulator to be switched ON and OFF. The LP2950 is
offered in a 3-pin TO-263 package compatible with other 5V, 3.0V & 3.3V regulators. The LP2951 is also available in 8-pin plastic,
SO-8 packages.
The regulator output voltage may be pin-strapped for 5.0V, 3.0V or 3.3V or programmed from 1.24V to 29V with an external pair of
resistors. Look for SPX2950/51 for 150mA, for SPX2975 for 180mA and SPX2954 for 250mA.
APPLICATIONS
Cordless Telephones
Radio Control Systems
Portable/Palm Top/Notebook Computers
Portable Consumer Equipment
Portable Instrumentation
Avionics
SMPS Post-Regulator
Voltage Reference
Automotive Electronics
8-Pin Surface Mount (S)
ALPHA
AS2930
LP2951
1
Top View
2
3
4
5
6
7
8
OUTPUT
SENSE
SHUTDOWN
GROUND
INPUT
FEEDBACK
5V or 3.3V TAP
ERROR
Top View
TO-263-3 (T)
1
LP2950
2
3
V
IN
V
OUT
GND
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相關代理商/技術參數 |
參數描述 |
|---|---|
| LP2950_05 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:100 mA LOW-DROPOUT VOLTAGE REGULATOR |
| LP2950_06 | 制造商:ONSEMI 制造商全稱:ON Semiconductor 功能描述:100 mA, Low Power Low Dropout Voltage Regulator |
| LP2950_07 | 制造商:SIPEX 制造商全稱:Sipex Corporation 功能描述:100mA Low Dropout Voltage Regulators |
| LP2950_08 | 制造商:MICREL 制造商全稱:Micrel Semiconductor 功能描述:100mA Low-Dropout Voltage Regulator |
| LP2950_09 | 制造商:UTC-IC 制造商全稱:UTC-IC 功能描述:100 mA LOW-DROPOUT VOLTAGE REGULATOR |
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