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參數(shù)資料
| 型號(hào)： | LP3883ESX-1.8 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | 3A Fast-Response Ultra Low Dropout Linear Regulators |
| 中文描述： | 1.8 V FIXED POSITIVE LDO REGULATOR, 0.42 V DROPOUT, PSSO5 |
| 封裝： | TO-263, 5 PIN |
| 文件頁(yè)數(shù)： | 1/12頁(yè) |
| 文件大小： | 367K |
| 代理商： | LP3883ESX-1.8 |
LP3883
3A Fast-Response Ultra Low Dropout Linear Regulators
General Description
The LP3883 is a high-current, fast-response regulator which
can maintain output voltage regulation with minimum input to
output voltage drop. Fabricated on a CMOS process, the
device operates from two input voltages: Vbias provides
voltage to drive the gate of the N-MOS power transistor,
while Vin is the input voltage which supplies power to the
load. The use of an external bias rail allows the part to
operate from ultra low Vin voltages. Unlike bipolar regula-
tors, the CMOS architecture consumes extremely low quies-
cent current at any output load current. The use of an
N-MOS power transistor results in wide bandwidth, yet mini-
mum external capacitance is required to maintain loop sta-
bility.
The fast transient response of these devices makes them
suitable for use in powering DSP, Microcontroller Core volt-
ages and Switch Mode Power Supply post regulators. The
parts are available in TO-220 and TO-263 packages.
Dropout Voltage:
210 mV (typ)
@
3A load current.
Ground Pin Current:
3 mA (typ) at full load.
Shutdown Current:
60 nA (typ) when S/D pin is low.
Precision Output Voltage:
1.5% room temperature accu-
racy.
Features
n
Ultra low dropout voltage (210 mV
@
3A typ)
n
Low ground pin current
n
Load regulation of 0.04%/A
n
60 nA typical quiescent current in shutdown
n
1.5% output accuracy (25C)
n
TO-220, TO-263 packages
n
Over temperature/over current protection
n
40C to +125C junction temperature range
Applications
n
DSP Power Supplies
n
Server Core and I/O Supplies
n
Linear Power Supplies for PC Add-in-Cards
n
Set-Top Box Power Supplies
n
Microprocessor Power Supplies
n
High Efficiency Linear Power Supplies
n
SMPS Post-Regulators
Typical Application Circuit
20062401
At least 4.7 μF of input and output capacitance is required for stability.
Connection Diagrams
20062402
TO-220, Top View
20062403
TO-263, Top View
August 2003
L
2003 National Semiconductor Corporation
DS200624
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP3883ES-1.8 | 3A Fast-Response Ultra Low Dropout Linear Regulators |
| LP3883ESX-1.5 | 3A Fast-Response Ultra Low Dropout Linear Regulators |
| LP3883ESX-1.2 | 3A Fast-Response Ultra Low Dropout Linear Regulators |
| LP3883ET-1.8 | 3A Fast-Response Ultra Low Dropout Linear Regulators |
| LP3883ET-1.5 | 3A Fast-Response Ultra Low Dropout Linear Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP3883ET-1.2 | 制造商:Texas Instruments 功能描述:V REG LDO 3A +1.2V 3883 TO-220-5 |
| LP3883ET-1.2/NOPB | 功能描述:IC REG LDO 1.2V 3A TO220-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品變化通告:Heatsink Pkg Change 09/Oct/2007 標(biāo)準(zhǔn)包裝:50 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:24V 輸入電壓:最高 40 V 電壓 - 壓降（標(biāo)準(zhǔn)）:2V @ 1A 穩(wěn)壓器數(shù)量:1 電流 - 輸出:1A 電流 - 限制（最小）:- 工作溫度:0°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-220-3 供應(yīng)商設(shè)備封裝:TO-220-3 包裝:管件 |
| LP3883ET-1.2/NOPB | 制造商:Texas Instruments 功能描述:Voltage Regulator IC |
| LP3883ET-1.5 | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LP3883ET-1.5/NOPB | 功能描述:IC REG LDO 1.5V 3A TO220-5 RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 產(chǎn)品變化通告:Heatsink Pkg Change 09/Oct/2007 標(biāo)準(zhǔn)包裝:50 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:24V 輸入電壓:最高 40 V 電壓 - 壓降（標(biāo)準(zhǔn)）:2V @ 1A 穩(wěn)壓器數(shù)量:1 電流 - 輸出:1A 電流 - 限制（最?。?- 工作溫度:0°C ~ 125°C 安裝類型:通孔 封裝/外殼:TO-220-3 供應(yīng)商設(shè)備封裝:TO-220-3 包裝:管件 |
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