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參數(shù)資料
| 型號： | LP2956A |
| 廠商： | National Semiconductor Corporation |
| 文件頁數(shù)： | 1/16頁 |
| 文件大?。?/td> | 501K |
| 代理商： | LP2956A |
LP2956/LP2956A
Dual Micropower Low-Dropout Voltage Regulators
General Description
The LP2956 is a micropower voltage regulator with very low
quiescent current (170 μA typical at light loads) and very low
dropout voltage (typically 60 mV at 1 mA load current and
470 mV at 250 mA load current on the main output).
The LP2956 retains all the desirable characteristics of the
LP2951, but offers increased output current (main output),
an auxiliary LDO adjustable regulated output (75 mA), and
additional features.
The auxiliary output is always on (regardless of main output
status), so it can be used to power memory circuits.
Quiescent current increases only slightly at dropout, which
prolongs battery life.
The error flag goes low if the main output voltage drops out
of regulation.
An open-collector auxiliary comparator is included, whose in-
verting input is tied to the 1.23V reference.
Reverse battery protection is provided.
The parts are available in DIP and surface mount packages.
Features
n
Output voltage adjusts from 1.23V to 29V
n
Guaranteed 250 mA current (main output)
n
Auxiliary LDO (75 mA) adjustable output
n
Auxiliary comparator with open-collector output
n
Shutdown pin for main output
n
Extremely low quiescent current
n
Low dropout voltage
n
Extremely tight line and load regulation
n
Very low temperature coefficient
n
Current and thermal limiting
n
Reverse battery protection
Applications
n
High-efficiency linear regulator
n
Low dropout battery-powered regulator
n
μP system regulator with switchable high-current V
CC
Block Diagram
LP2956
DS011339-1
May 1999
L
1999 National Semiconductor Corporation
DS011339
www.national.com
相關(guān)PDF資料 |
PDF描述 |
|---|---|
| LP2956 | Dual Micropower Low-Dropout Voltage Regulators |
| LP2960AIM-3.3 | Adjustable Micropower 0.5A Low-Dropout Regulators |
| LP2960IM-3.3 | Adjustable Micropower 0.5A Low-Dropout Regulators |
| LP2960IM-5.0 | Adjustable Micropower 0.5A Low-Dropout Regulators |
| LP2960IN-3.3 | Adjustable Micropower 0.5A Low-Dropout Regulators |
相關(guān)代理商/技術(shù)參數(shù) |
參數(shù)描述 |
|---|---|
| LP2956AIM | 制造商:Texas Instruments 功能描述: |
| LP2956AIM/NOPB | 功能描述:IC REG LDO ADJ .25A 16-SOIC RoHS:是 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?。?- 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 |
| LP2956AIMX | 功能描述:IC REG LDO ADJ .25A 16-SOIC RoHS:是 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?。?- 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 |
| LP2956AIMX/NOPB | 制造商:Texas Instruments 功能描述:LDO Regulator Pos 1.23V to 29V 0.25A/0.075A 16-Pin SOIC N T/R |
| LP2956AIN/NOPB | 功能描述:IC REG LDO ADJ .25A 16-DIP RoHS:是 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 |
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