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參數(shù)資料
| 型號： | LP2978IM5X-3.8 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準(zhǔn)電壓源/電流源 |
| 英文描述： | SUBMINIATURE PC BOARD RELAY |
| 中文描述： | 3.8 V FIXED POSITIVE LDO REGULATOR, 0.225 V DROPOUT, PDSO5 |
| 封裝： | SOT-23, SOP-5 |
| 文件頁數(shù)： | 1/7頁 |
| 文件大?。?/td> | 102K |
| 代理商： | LP2978IM5X-3.8 |
LP2978
Micropower SOT, 50 mA Low-Noise Ultra Low-Dropout
Regulator
Designed for Use with Very Low ESR Output Capacitors
General Description
The LP2978 is a 50 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) pro-
cess, the LP2978 delivers unequalled performance in all
specifications critical to battery-powered designs:
Dropout Voltage:
Typically 120 mV
@
50 mAload, and 7 mV
@
1 mA load.
Ground Pin Current:
Typically 350 μA
@
50 mA load, and
75 μA
@
1 mA load.
Enhanced Stability:
The LP2978 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 μA quiescent current when
ON/OFF pin is pulled low.
Smallest Possible Size:
SOT-23 package uses 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 μV (typical).
Features
n
Ultra low dropout voltage
n
Smallest possible size (SOT-23 Package)
n
Requires minimum external components
n
Stable with low-ESR output capacitor
n
<
1 μA quiescent current when shut down
n
Low ground pin current at all loads
n
Output voltage accuracy 1% (A Grade)
n
High peak current capability
n
Wide supply voltage range (16V max)
n
Low Z
OUT
: 0.3
typical (10 Hz to 1 MHz)
n
Overtemperature/overcurrent protection
n
40C to +125C junction temperature range
n
Custom voltages available
Applications
n
Cellular Phone
n
Palmtop/Laptop Computer
n
Personal Digital Assistant (PDA)
n
Camcorder, Personal Stereo, Camera
Block Diagram
VIP
is a trademark of National Semiconductor Corporation.
DS100935-1
July 2000
L
2000 National Semiconductor Corporation
DS100935
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP2980AIM5X-5.0 | Micropower 50 mA Ultra Low-Dropout Regulator |
| LP2980AIBP-3.3 | Micropower 50 mA Ultra Low-Dropout Regulator |
| LP2980AIBPX-3.3 | Quadruple 2-Input Exclusive-OR Gates 14-TSSOP -40 to 85 |
| LP2980AIBPX-5.0 | Quadruple 2-Input Exclusive-OR Gates 14-TSSOP -40 to 85 |
| LP2980AIM5-1.8 | Micropower SOT, 50 mA Low-Voltage Low-Dropout Regulator For Applications With Output Voltages < 2V |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP2980-1.57BUP6 WAF | 制造商:Texas Instruments 功能描述: |
| LP2980-3.3BUP6 WAF | 制造商:Texas Instruments 功能描述: |
| LP2980AIBP-3.3 | 制造商:Rochester Electronics LLC 功能描述:50MA LDO REG IN MICRO SMD - Bulk 制造商:Texas Instruments 功能描述: |
| LP2980AIBP-3.3/NOPB | 功能描述:IC REG LDO 3.3V 50MA 5USMD RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最?。?- 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 |
| LP2980AIBP-5.0 | 功能描述:IC REG LDO 5V 50MA 5USMD RoHS:是 類別:集成電路 (IC) >> PMIC - 穩(wěn)壓器 - 線性 系列:- 標(biāo)準(zhǔn)包裝:1 系列:- 穩(wěn)壓器拓?fù)浣Y(jié)構(gòu):正，固定式 輸出電壓:4V 輸入電壓:最高 16V 電壓 - 壓降（標(biāo)準(zhǔn)）:0.28V @ 150mA 穩(wěn)壓器數(shù)量:1 電流 - 輸出:150mA 電流 - 限制（最?。?- 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 |
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