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參數資料
| 型號： | LP5951MF-3.3 |
| 廠商： | NATIONAL SEMICONDUCTOR CORP |
| 元件分類： | 基準電壓源/電流源 |
| 英文描述： | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
| 中文描述： | 3.3 V FIXED POSITIVE LDO REGULATOR, 0.25 V DROPOUT, PDSO5 |
| 封裝： | SOT-23, 5 PIN |
| 文件頁數： | 1/10頁 |
| 文件大小： | 608K |
| 代理商： | LP5951MF-3.3 |
LP5951
Micropower, 150mA Low-Dropout CMOS Voltage
Regulator
General Description
The LP5951 regulator is designed to meet the requirements
of portable, battery-powered systems providing a regulated
output voltage and low quiescent current. When switched to
shutdown mode via a logic signal at the Enable pin, the
power consumption is reduced to virtually zero.
The LP5951 is designed to be stable with small 1μF/1.5μF
ceramic capacitors.
The LP5951 also features internal protection against short-
circuit currents and over-temperature conditions.
Performance is specified for a -40C to 125C temperature
range.
The device is currently available in SOT23-5 package and
will be available in SC70-5 package soon.
The device is available in fixed output voltages in the range
of 1.3V to 3.3V. For availability, please contact your local
NSC sales office.
Features
n
Excellent line transient response:
±
2mV typ.
n
Excellent PSRR: -60dB at 1kHz typ.
n
Low quiescent current of 29μA typ.
n
1.8 to 5.5V input voltage range
n
Small SOT23-5 package
n
Fast turn-on time of 30μs typ.
n
Typ.
<
1nA quiescent current in shutdown
n
Guaranteed 150mA output current
n
Output voltage range: 1.3V to 3.3V
n
Logic controlled enable 0.4V/0.9V
n
Good load transient response of 50mVpp typ.
n
Thermal-overload and short-circuit protection
n
-40C to +125C junction temperature range
Applications
n
General purpose
Typical Application Circuit
20136201
June 2006
L
2006 National Semiconductor Corporation
DS201362
www.national.com
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| LP5951MFX-1.3 | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
| LP5951MFX-1.5 | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
| LP5951MFX-1.8 | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
| LP5951MFX-2.0 | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
| LP5951MFX-2.5 | Micropower, 150mA Low-Dropout CMOS Voltage Regulator |
相關代理商/技術參數 |
參數描述 |
|---|---|
| LP5951MFX-1.3 | 功能描述:低壓差穩壓器 - 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 負載調節:0.3 % 輸出端數量: 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 |
| LP5951MFX-1.3/NOPB | 功能描述:低壓差穩壓器 - 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 負載調節:0.3 % 輸出端數量: 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 |
| LP5951MFX-1.5 | 功能描述:低壓差穩壓器 - 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 負載調節:0.3 % 輸出端數量: 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 |
| LP5951MFX-1.5/NOPB | 功能描述:低壓差穩壓器 - 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 負載調節:0.3 % 輸出端數量: 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 |
| LP5951MFX-1.8 | 功能描述:低壓差穩壓器 - 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 負載調節:0.3 % 輸出端數量: 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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