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參數(shù)資料
| 型號(hào)： | LP3966ET-ADJ |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3A Fast Ultra Low Dropout Linear Regulators |
| 中文描述： | 1.216 V-5.1 V ADJUSTABLE POSITIVE LDO REGULATOR, 1.2 V DROPOUT, PZFM5 |
| 封裝： | TO-220, 5 PIN |
| 文件頁數(shù)： | 1/14頁 |
| 文件大小： | 250K |
| 代理商： | LP3966ET-ADJ |
LP3963/LP3966
3A Fast Ultra Low Dropout Linear Regulators
General Description
The LP3963/LP3966 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 LP3963/LP3966 are de-
veloped on a CMOS process which allows low quiescent
current operation independent of output load current.This
CMOS process also allows the LP3963/LP3966 to operate
under extremely low dropout conditions.
Dropout Voltage:
Ultra low dropout voltage; typically 80mV
at 300mA load current and 800mV at 3A load current.
Ground Pin Current:
Typically 6mA at 3A 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 LP3963).
SENSE:
Sense pin improves regulation at remote loads.
(For LP3966)
Precision Output Voltage:
Multiple output voltage options
are available ranging from 1.2V to 5.0V and adjustable, with
a guaranteed accuracy of
±
1.5% at room temperature, and
±
3.0% over all conditions ( varying line, load, and tempera-
ture).
Features
n
Ultra low dropout voltage
n
Low ground pin current
n
Load regulation of 0.06%
n
15μA quiescent current in shutdown mode
n
Guaranteed output current of 3A DC
n
Available in TO-263 and TO-220 packages
n
Output voltage accuracy
±
1.5%
n
Error flag indicates output status (LP3963)
n
Sense option improves better load regulation (LP3966)
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
DS101267-1
#
Minimum output capacitance is 10 μF to ensure stability over full load current range. More capacitance provides superior dynamic performance and additional
stability margin.
*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 sec-
tion for more information.
April 2000
L
2000 National Semiconductor Corporation
DS101267
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP3966ESX-1.8 | 3A Fast Ultra Low Dropout Linear Regulators |
| LP3966ES-1.8 | 3A Fast Ultra Low Dropout Linear Regulators |
| LP3966ES-2.5 | 3A Fast Ultra Low Dropout Linear Regulators |
| LP3966ES-3.3 | 3A Fast Ultra Low Dropout Linear Regulators |
| LP3966ET-1.8 | 3A Fast Ultra Low Dropout Linear Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3966ET-ADJ/LB05 | 制造商:Texas Instruments 功能描述:LDO Regulator Pos 1.2V to 5V 3A 5-Pin(5+Tab) TO-220 Rail |
| LP3966ET-ADJ/NOPB | 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 |
| LP3970 | 制造商:NSC 制造商全稱:National Semiconductor 功能描述:Power Management Unit for Advanced Application Processors |
| LP3970SQ-31 | 制造商:Texas Instruments 功能描述:PMU FOR APP PROCESSOR POWERWISE |
| LP3970SQ-31/NOPB | 功能描述:IC PMU FOR APP PROCESSOR 48-LLP RoHS:是 類別:集成電路 (IC) >> PMIC - 電源管理 - 專用 系列:PowerWise® 應(yīng)用說明:Ultrasound Imaging Systems Application Note 產(chǎn)品培訓(xùn)模塊:Lead (SnPb) Finish for COTS Obsolescence Mitigation Program 標(biāo)準(zhǔn)包裝:37 系列:- 應(yīng)用:醫(yī)療用超聲波成像，聲納 電流 - 電源:- 電源電壓:2.37 V ~ 6 V 工作溫度:0°C ~ 70°C 安裝類型:表面貼裝 封裝/外殼:56-WFQFN 裸露焊盤 供應(yīng)商設(shè)備封裝:56-TQFN-EP（8x8） 包裝:管件 |
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