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參數資料
| 型號： | LP3871ES-1.8 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | 0.8A Fast Ultra Low Dropout Linear Regulators |
| 中文描述： | 1.8 V FIXED POSITIVE LDO REGULATOR, 0.35 V DROPOUT, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁數： | 1/18頁 |
| 文件大?。?/td> | 364K |
| 代理商： | LP3871ES-1.8 |
LP3871/LP3874
0.8A Fast Ultra Low Dropout Linear Regulators
General Description
The LP3871/LP3874 series of fast ultra low-dropout linear
regulators operate from a +2.5V to +7.0V input supply. Wide
range of preset output voltage options are available. These
ultra low dropout linear regulators respond very quickly to
step changes in load, which makes them suitable for low
voltage microprocessor applications. The LP3871/LP3874
are developed on a CMOS process which allows low quies-
cent current operation independent of output load current.
This CMOS process also allows the LP3871/LP3874 to op-
erate under extremely low dropout conditions.
Dropout Voltage:
Ultra low dropout voltage; typically 24mV
at 80mA load current and 240mV at 0.8A load current.
Ground Pin Current:
Typically 6mA at 0.8A load current.
Shutdown Mode:
Typically 10nA quiescent current when
the shutdown pin is pulled low.
Error Flag:
Error flag goes low when the output voltage
drops 10% below nominal value.
SENSE:
Sense pin improves regulation at remote loads.
Precision Output Voltage:
Multiple output voltage options
are available ranging from 1.8V to 5.0V with a guaranteed
accuracy of
±
1.5% at room temperature, and
±
3.0% over all
conditions (varying line, load, and temperature).
Features
n
Ultra low dropout voltage
n
Low ground pin current
n
Load regulation of 0.04%
n
10nA quiescent current in shutdown mode
n
Guaranteed output current of 0.8A DC
n
Available in TO-263, TO-220 and SOT-223 packages
n
Output voltage accuracy
±
1.5%
n
Error flag indicates output status
n
Sense option improves load regulation
n
Minimum output capacitor requirements
n
Overtemperature/overcurrent protection
n
40C to +125C junction temperature range
Applications
n
Microprocessor power supplies
n
GTL, GTL+, BTL, and SSTL bus terminators
n
Power supplies for DSPs
n
SCSI terminator
n
Post regulators
n
High efficiency linear regulators
n
Battery chargers
n
Other battery powered applications
Typical Application Circuits
20063101
*SD and ERROR pins must be pulled high through a 10k
pull-up resistor. Connect the ERROR pin to ground if this function is not used. See application hints
for more information.
April 2004
L
2004 National Semiconductor Corporation
DS200631
www.national.com
相關PDF資料 |
PDF描述 |
|---|---|
| LP3871ES-2.5 | 0.8A Fast Ultra Low Dropout Linear Regulators |
| LP3871ES-3.3 | 0.8A Fast Ultra Low Dropout Linear Regulators |
| LP3871ES-5.0 | 0.8A Fast Ultra Low Dropout Linear Regulators |
| LP3871EMPX-3.3 | 0.8A Fast Ultra Low Dropout Linear Regulators |
| LP3871EMPX-5.0 | 0.8A Fast Ultra Low Dropout Linear Regulators |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LP3871ES-2.5 | 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3871ES-2.5/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 0.8A Low Dropout 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3871ES-3.3 | 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3871ES-3.3/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 0.8A Low Dropout 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調節(jié):0.3 % 輸出端數量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP3871ES-5.0 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述:V REG LDO 0.8A 5.0V 3871 TO-263-5 |
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