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參數(shù)資料
| 型號(hào)： | LP2950ACZ-3.0 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類(lèi)： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | Series of Adjustable Micropower Voltage Regulators |
| 中文描述： | 3 V FIXED POSITIVE LDO REGULATOR, 0.6 V DROPOUT, PBCY3 |
| 封裝： | PLASTIC, TO-92, 3 PIN |
| 文件頁(yè)數(shù)： | 1/14頁(yè) |
| 文件大?。?/td> | 142K |
| 代理商： | LP2950ACZ-3.0 |
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Advanced Monolithic Systems, Inc.
6680B Sierra Lane, Dublin, CA 94568 Phone (925) 556-9090 Fax (925) 556-9140
Advanced
LP2950/LP2951
Monolithic
100mA LOW DROPOUT VOLTAGE REGULATOR
Systems
FEATURES
5V, 3.3V, and 3V Versions at 100mA Output Current
High Accuracy Output Voltage
Extremely Low Quiescent Current
Low Dropout Voltage
Extremely Tight Load and Line Regulation
Very Low Temperature Coefficient
Current and Thermal Limiting
Needs Minimum Capacitance (1
μ
F) for Stability
Unregulated DC Positive Transients 60V
ADDITIONAL FEATURES (LP2951 ONLY)
1.24V to 29V Programmable Output
Error Flag Warning of Voltage Output Dropout
Logic Controlled Electronic Shutdown
APPLICATIONS
Battery Powered Systems
Portable Consumer Equipment
Cordless Telephones
Portable (Notebook) Computers
Portable Instrumentation
Radio Control Systems
Automotive Electronics
Avionics
Low-Power Voltage Reference
GENERAL DESCRIPTION
The LP2950 and LP2951 are micropower voltage regulators ideally suited for use in battery-powered systems. These devices
feature very low quiescent current (typ.75μA), and very low dropout voltage (typ.45mV at light loads and 380mV at 100mA)
thus prolonging battery life. The quiescent current increases only slightly in dropout. The LP2950/LP2951 has positive
transient protection up to 60V and can survive unregulated input transient up to 20V below ground.
The LP2950 and LP2951 were designed to include a tight initial tolerance (typ. 0.5%), excellent load and line regulation (typ.
0.05%), and a very low output voltage temperature coefficient, making these devices useful as a low-power voltage reference.
The LP2950 is offered in the 3-pin TO-92 package. LP2951 is available in 8-pin plastic SOIC and DIP packages and offers
three major additional system features. An error flag output warns of a low output voltage, often due to failing batteries on
input. The LP2951 also features the logic-compatible shutdown input which enables the regulator to be switched on and off.
The LP2951 device may be pin-strapped for a 5V, 3.3V, or 3V output, or programmed from 1.24V to 29V with an external
pair of resistors.
ORDERING INFORMATION
PIN CONNECTION
PACKAGE TYPE
8 LEAD PDIP
LP2951ACP-X
LP2951CP-X
OPERATING
TEMP. RANGE
IND.
IND
TO-92
8 LEAD SOIC
LP2951ACS-X
LP2951CS-X
LP2950ACN-X
LP2950CN-X
X = 3.3V, or 3V
8L SOIC/ 8L PDIP
1
2
8
4
3
7
5
6 V
TAP
ERROR
FEEDBACK
OUTPUT
SENSE
SHUTDOWN
INPUT
GROUND
Top View
TO-92
OUTPUT
INPUT
GND
Bottom View
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP2950ACZ-3.3 | Series of Adjustable Micropower Voltage Regulators |
| LP2950ACZ-5.0 | Series of Adjustable Micropower Voltage Regulators |
| LP2950CZ-5.0 | Series of Adjustable Micropower Voltage Regulators |
| LP2950-02BZ | 100mA Low-Dropout Voltage Regulator |
| LP2950-03BZ | 100mA Low-Dropout Voltage Regulator |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP2950ACZ5.0 | 制造商:未知廠家 制造商全稱:未知廠家 功能描述:Positive Fixed Voltage Regulator |
| LP2950ACZ-5.0 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP2950ACZ-5.0 | 制造商:Texas Instruments 功能描述:IC V REG LDO +5.0V 2950 TO-92-3 |
| LP2950ACZ-5.0/LFT1 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP2950ACZ-5.0/LFT2 | 功能描述:低壓差穩(wěn)壓器 - LDO RoHS:否 制造商:Texas Instruments 最大輸入電壓:36 V 輸出電壓:1.4 V to 20.5 V 回動(dòng)電壓（最大值）:307 mV 輸出電流:1 A 負(fù)載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類(lèi)型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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