參數(shù)資料
型號(hào)： LP3964EMP-1.8
元件分類： 基準(zhǔn)電壓源/電流源
英文描述： THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
中文描述： 三端固定電壓調(diào)節(jié)器
文件頁(yè)數(shù)： 1/22頁(yè)
文件大?。?/td> 479K
代理商： LP3964EMP-1.8
LP3961/LP3964
800mA Fast Ultra Low Dropout Linear Regulators
General Description
The LP3961/LP3964 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 fast to step
changes in load which makes them suitable for low voltage
microprocessor applications. The LP3961/LP3964 are de-
veloped on a CMOS process which allows low quiescent
current operation independent of output load current. This
CMOS process also allows the LP3961/LP3964 to operate
under extremely low dropout conditions.
Dropout Voltage:
Ultra low dropout voltage; typically 24mV
at 80mA load current and 240mV at 800mA load current.
Ground Pin Current:
Typically 4mA at 800mA load current.
Shutdown Mode:
Typically 15μA quiescent current when
the shutdown pin is pulled low.
Error Flag:
Error flag goes low when the output voltage
drops 10% below nominal value (for LP3961).
SENSE:
Sense pin improves regulation at remote loads.
(For LP3964)
Precision Output Voltage:
Multiple output voltage options
are available ranging from 1.2V to 5.0V and adjustable
(LP3964), 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 0.02%
n
15μA quiescent current in shutdown mode
n
Guaranteed output current of 0.8A DC
n
Available in SOT-223,TO-263 and TO-220 packages
n
Output voltage accuracy
±
1.5%
n
Error flag indicates output status (LP3961)
n
Sense option improves better load regulation (LP3964)
n
Extremely low 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
10112901
*
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 applications
section for more information.
**
See Application Hints.
November 2001
L
2001 National Semiconductor Corporation
DS101129
www.national.com
相關(guān)PDF資料
PDF描述
LP3964EMP-3.3 THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
LP3964EMP-ADJ Positive Adjustable Voltage Regulator
LP3964EMPX-1.8 THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
LP3964EMPX-2.5 THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
LP3964EMPX-3.3 THREE-TERMINAL POSITIVE FIXED VOLTAGE REGULATORS
相關(guān)代理商/技術(shù)參數(shù)
參數(shù)描述
LP3964EMP-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(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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP3964EMP-2.5 制造商:Texas Instruments 功能描述:V REG ULTRA-LDO +2.5V SMD 3964
LP3964EMP-2.5/NOPB 功能描述:低壓差穩(wěn)壓器 - LDO 800Ma Ultra-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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP3964EMP-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(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: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風(fēng)格:SMD/SMT 封裝 / 箱體:VQFN-20
LP3964EMP-3.3 制造商:Texas Instruments 功能描述:V REG ULTRA-LDO +3.3V SMD 3964
發(fā)布緊急采購(gòu)，3分鐘左右您將得到回復(fù)。

采購(gòu)需求

(若只采購(gòu)一條型號(hào)，填寫一行即可)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

發(fā)布成功！您可以繼續(xù)發(fā)布采購(gòu)。也可以進(jìn)入我的后臺(tái)，查看報(bào)價(jià)

*型號(hào) *數(shù)量 廠商 批號(hào) 封裝
添加更多采購(gòu)

我的聯(lián)系方式

*
*
*