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| 型号： | LP2985AITPX-2.8/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： | 2.8 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PBGA5 |
| 封装： | MICRO, SMD-5 |
| 文件页数： | 1/22页 |
| 文件大小： | 593K |
| 代理商： | LP2985AITPX-2.8/NOPB |
July 1, 2007
LP2985
Micropower 150 mA Low-Noise Ultra Low-Dropout
Regulator in SOT-23 and micro SMD Packages
Designed for Use with Very Low ESR Output Capacitors
General Description
The LP2985 is a 150 mA, fixed-output voltage regulator de-
signed to provide ultra low-dropout and low noise in battery
powered applications.
Using an optimized VIP (Vertically Integrated PNP) process,
the LP2985 delivers unequalled performance in all specifica-
tions critical to battery-powered designs:
Dropout Voltage:
Typically 300 mV @ 150 mA load, and
7 mV @ 1 mA load.
Ground Pin Current:
Typically 850 A @ 150 mA load, and
75 A @ 1 mA load.
Enhanced Stability:
The LP2985 is stable with output ca-
pacitor ESR as low as 5 m
, which allows the use of ceramic
capacitors on the output.
Sleep Mode:
Less than 1 A quiescent current when ON/OFF
pin is pulled low.
Smallest Possible Size:
SOT-23 and micro SMD packages
use absolute minimum board space.
Precision Output:
1% tolerance output voltages available (A
grade).
Low Noise:
By adding a 10 nF bypass capacitor, output noise
can be reduced to 30 V (typical).
Multiple voltage options, from 2.5V to 5.0V, are available as
standard products. Consult factory for custom voltages.
Features
■ Ultra low dropout voltage
■ Guaranteed 150 mA output current
■ Smallest possible size (SOT-23, micro SMD package)
■ Requires minimum external components
■ Stable with low-ESR output capacitor
■ <1 A quiescent current when shut down
■ Low ground pin current at all loads
■ Output voltage accuracy 1% (A Grade)
■ High peak current capability
■ Wide supply voltage range (16V max)
■ Low Z
OUT: 0.3 typical (10 Hz to 1 MHz)
■ Overtemperature/overcurrent protection
■ 40°C to +125°C junction temperature range
■ Custom voltages available
Applications
■ Cellular Phone
■ Palmtop/Laptop Computer
■ Personal Digital Assistant (PDA)
■ Camcorder, Personal Stereo, Camera
Block Diagram
10014001
VIP is a registered trademark of National Semiconductor Corporation.
2008 National Semiconductor Corporation
100140
www.national.com
LP2985
Micropower
150
mA
Low-Noise
Ultra
Low-Dropout
Regulator
in
SOT-23
and
micro
SMD
Packages
相关PDF资料 |
PDF描述 |
|---|---|
| LP2985ITPX-2.8/NOPB | 2.8 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PBGA5 |
| LP2985AIM5-2.6/NOPB | 2.6 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5 |
| LP2985AIM5-3.2/NOPB | 3.2 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5 |
| LP2985AIM5-3.5/NOPB | 3.5 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5 |
| LP2985AIM5-4.7/NOPB | 4.7 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PDSO5 |
相关代理商/技术参数 |
参数描述 |
|---|---|
| LP2985AITPX-3.0/NOPB | 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 |
| LP2985AITPX3.0NOPB | 制造商:National Semiconductor 功能描述:LDO Regulator Pos 3V 0.15A 5-Pin uSMD T/R |
| LP2985AITPX-3.3/NOPB | 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 |
| LP2985AITPX-5.0/NOPB | 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 |
| LP2985AY-4.8 WAF | 制造商:Texas Instruments 功能描述: |
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