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參數(shù)資料
| 型號(hào)： | LP2985AITPX-2.8/NOPB |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 固定正電壓?jiǎn)温份敵鯨DO穩(wěn)壓器 |
| 英文描述： | 2.8 V FIXED POSITIVE LDO REGULATOR, 0.575 V DROPOUT, PBGA5 |
| 封裝： | MICRO, SMD-5 |
| 文件頁(yè)數(shù)： | 1/22頁(yè) |
| 文件大小： | 593K |
| 代理商： | LP2985AITPX-2.8/NOPB |
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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
相關(guān)PDF資料 |
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 |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP2985AITPX-3.0/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 |
| 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 |
| LP2985AITPX-5.0/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 |
| LP2985AY-4.8 WAF | 制造商:Texas Instruments 功能描述: |
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