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参数资料
| 型号： | LP3883ET-1.5/NOPB |
| 厂商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分类： | 固定正电压单路输出LDO稳压器 |
| 英文描述： | 1.5 V FIXED POSITIVE LDO REGULATOR, 0.42 V DROPOUT, PZFM5 |
| 封装： | TO-220, 5 PIN |
| 文件页数： | 1/14页 |
| 文件大小： | 819K |
| 代理商： | LP3883ET-1.5/NOPB |
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 F of input and output capacitance is required for stability.
February 2006
LP3883
3A
Fast-Response
Ultra
Low
Dropout
Linear
Regulators
2006 National Semiconductor Corporation
DS200624
www.national.com
相关PDF资料 |
PDF描述 |
|---|---|
| LP3883ET-1.8/NOPB | 1.8 V FIXED POSITIVE LDO REGULATOR, 0.42 V DROPOUT, PZFM5 |
| LP3985IM5-2.6/NOPB | 2.6 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PDSO5 |
| LP3985IM5-285/NOPB | 2.85 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PDSO5 |
| LP3985IM5X-2.6/NOPB | 2.6 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PDSO5 |
| LP3985IM5X-2.9/NOPB | 2.9 V FIXED POSITIVE LDO REGULATOR, 0.1 V DROPOUT, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LP38841 | 制造商:NSC 制造商全称:National Semiconductor 功能描述:0.8A Ultra Low Dropout Linear Regulators Stable with Ceramic Output Capacitors |
| LP38841-ADJ | 制造商:NSC 制造商全称:National Semiconductor 功能描述:0.8A Ultra Low Dropout Adjustable Linear Regulators Stable with Ceramic Output Capacitors |
| LP38841EVAL | 功能描述:电源管理IC开发工具 LP38841 EVAL BOARD RoHS:否 制造商:Maxim Integrated 产品:Evaluation Kits 类型:Battery Management 工具用于评估:MAX17710GB 输入电压: 输出电压:1.8 V |
| LP38841MR | 制造商:Rochester Electronics LLC 功能描述: 制造商:Texas Instruments 功能描述: |
| LP38841MR-ADJ | 功能描述:低压差稳压器 - LDO RoHS:否 制造商:Texas Instruments 最大输入电压:36 V 输出电压:1.4 V to 20.5 V 回动电压（最大值）:307 mV 输出电流:1 A 负载调节:0.3 % 输出端数量: 输出类型:Fixed 最大工作温度:+ 125 C 安装风格:SMD/SMT 封装 / 箱体:VQFN-20 |
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