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參數(shù)資料
| 型號： | LP2989ILD-2.8 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
| 中文描述： | 2.8 V FIXED POSITIVE LDO REGULATOR, 0.65 V DROPOUT, PDSO8 |
| 封裝： | LLP-8 |
| 文件頁數(shù)： | 1/19頁 |
| 文件大小： | 616K |
| 代理商： | LP2989ILD-2.8 |
LP2989
Micropower/Low Noise, 500 mA Ultra Low-Dropout
Regulator
For Use with Ceramic Output Capacitors
General Description
The LP2989 is a fixed-output 500 mA precision LDO regu-
lator designed for use with ceramic output capacitors.
Output noise can be reduced to 18μV (typical) by connecting
an external 10 nF capacitor to the bypass pin.
Using an optimized VIP
(Vertically Integrated PNP) pro-
cess, the LP2989 delivers superior performance:
Dropout Voltage:
Typically 310 mV
@
500 mA load, and 1
mV
@
100 μA load.
Ground Pin Current:
Typically 3 mA
@
500 mA load, and
110 μA
@
100 μA load.
Sleep Mode:
The LP2989 draws less than 0.8 μA quiescent
current when shutdown pin is pulled low.
Error Flag:
The built-in error flag goes low when the output
drops approximately 5% below nominal.
Precision Output:
Guaranteed output voltage accuracy is
0.75% (“A” grade) and 1.25% (standard grade) at room
temperature.
For output voltages
<
2V, see LP2989LV datasheet.
Features
n
Ultra low dropout voltage
n
Guaranteed 500 mA continuous output current
n
Very low output noise with external capacitor
n
SO-8, Mini SO-8, 8 Lead LLP surface mount packages
n
<
0.8 μA quiescent current when shutdown
n
Low ground pin current at all loads
n
0.75% output voltage accuracy (“A” grade)
n
High peak current capability (800 mA typical)
n
Wide supply voltage range (16V max)
n
Overtemperature/overcurrent protection
n
40C to +125C junction temperature range
Applications
n
Notebook/Desktop PC
n
PDA/Palmtop Computer
n
Wireless Communication Terminals
n
SMPS Post-Regulator
Block Diagram
10133901
VIP
is a trademark of National Semiconductor Corporation.
June 2002
L
F
2002 National Semiconductor Corporation
DS101339
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP2989ILD-285 | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
| LP2989ILD-3.0 | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
| LP2989AIMM-3.0 | Dual Precision Single Supply Low-Power Operational Amplifier 8-SOIC -55 to 125 |
| LP2989IMX-2.5 | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
| LP2989IMMX-3.0 | Micropower/Low Noise, 500 mA Ultra Low-Dropout Regulator For Use with Ceramic Output Capacitors |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP2989ILD-285 | 制造商:Rochester Electronics LLC 功能描述:500MA LDO REG, LOW NOISE, LOW - Bulk |
| LP2989ILD-285/NOPB | 功能描述:IC REG LDO 2.85V .5A 8LLP RoHS:否 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標準包裝:1 系列:- 穩(wěn)壓器拓撲結(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標準）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最小）:- 工作溫度:-40°C ~ 125°C 安裝類型:表面貼裝 封裝/外殼:5-VFBGA 供應(yīng)商設(shè)備封裝:5-uSMD 包裝:Digi-Reel® 其它名稱:LP2985AIBP-4.0DKR |
| LP2989ILD-3.0 | 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP2989ILD-3.0/NOPB | 功能描述:低壓差穩(wěn)壓器 - LDO 500Ma Low Noise 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
| LP2989ILD-3.3 | 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 回動電壓（最大值）:307 mV 輸出電流:1 A 負載調(diào)節(jié):0.3 % 輸出端數(shù)量: 輸出類型:Fixed 最大工作溫度:+ 125 C 安裝風格:SMD/SMT 封裝 / 箱體:VQFN-20 |
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