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LP3984IBP-1.8 |LP3984IBP18NSN/a75avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IBPX-1.8 |LP3984IBPX18NSC ?N/a1570avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMF-1.5 |LP3984IMF15NS,NSN/a15000avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMF-1.5 |LP3984IMF15NATIONALN/a500avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMF-1.5 |LP3984IMF15NSN/a22239avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMF-1.8 |LP3984IMF18NATIONALN/a800avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMF-2.0 |LP3984IMF20NSN/a400avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMF-3.1 |LP3984IMF31NSN/a95avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMFX-1.5 |LP3984IMFX15NSCN/a6710avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMFX-1.5 |LP3984IMFX15NSN/a580avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMFX-1.8 |LP3984IMFX18NS国半N/a28000avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984IMFX-3.1 |LP3984IMFX31NSCN/a3190avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984ITP-1.8 |LP3984ITP18NSCN/a44500avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984ITPX-1.8 |LP3984ITPX18NSN/a3000avaiMicropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package


LP3984ITP-1.8 ,Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD PackageFeaturesPower supply rejection is better than 60 dB at low frequen-n Miniature 4-I/O micro SMD and ..
LP3984ITPX-1.8 ,Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Packageapplications.Itprovidesupto150mAfromn Fast turn-ona2.5Vto6Vinput.TheLP3984consumeslessthan1.2µAinn ..
LP3985IBL-2.5 ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage RegulatorGeneral Description4.8V and 5.0V output voltages. For other output voltageThe LP3985 is designed fo ..
LP3985IBL-2.6 ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulatorapplications. It provides up to 150 mA,from a 2.5V to 6V input. The LP3985 consumes less than
LP3985IBL-2.8 ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage RegulatorLP3985 Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage RegulatorJune 2004LP3985Micropowe ..
LP3985IBL-2.9 ,Micropower, 150mA Low-Noise Ultra Low-Dropout CMOS Voltage Regulatorapplications. It provides up to 150 mA,from a 2.5V to 6V input. The LP3985 consumes less than
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LT1072IN8 ,1.25A High Efficiency Switching Regulator
LT1072IT ,1.25A High Efficiency Switching Regulator
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LT1073CN8 ,Micropower DC-DC Converter Ajustable and Fixed 5V/ 12V


LP3984IBP-1.8-LP3984IBPX-1.8-LP3984IMF-1.5-LP3984IMF-1.8-LP3984IMF-2.0-LP3984IMF-3.1-LP3984IMFX-1.5-LP3984IMFX-1.8-LP3984IMFX-3.1-LP3984ITP-1.8-LP3984ITPX-1.8
Micropower, 150mA Ultra Low-Dropout CMOS Voltage Regulator in Subminiature 4-I/O micro SMD Package
LP3984
Micropower, 150mA Ultra Low-Dropout CMOS Voltage
Regulator in Subminiature 4-I/O micro SMD Package
General Description

The LP3984is designedfor portable and wireless applica-
tions with demanding performance and space requirements.
The LP3984’s performanceis optimizedfor battery powered
systemsto deliver extremely low dropout voltage and low
quiescent current. Regulator ground current increases only
slightlyin dropout, further prolonging the battery life.
Power supply rejectionis better than60dBat low frequen-
cies and startsto rolloffat10 kHz. High power supply
rejectionis maintained downto low input voltage levels
commonto battery operated circuits.
The deviceis idealfor mobile phone and similar battery
powered wireless applications.It providesupto 150mA from 2.5Vto6V input. The LP3984 consumes less than 1.2µAin
disable mode and has fast turn-on time less than 20µs.
The LP3984is availableina4 bump micro SMD and5pin
SOT-23 package. Performanceis specifiedfor −40˚Cto
+125˚C temperature range andis availablein 1.5V, 1.8V,
2.0V, 2.9V and 3.1V output voltages. For other output volt-
age options from 1.5Vto 3.5V, please contact National Semi-
conductor sales office.
Key Specifications
2.5to 6.0V input range 150mA guaranteed output 60dB PSRRat 1kHz, 40dBat 10kHz@ 3.1VIN ≤1.2µA quiescent current when shut down Fast Turn-On time:20µs (typ.) 75mVtyp dropout with 150mA load −40to +125˚C junction temperature rangefor operation 1.5V, 1.8V, 2.0V, 2.9V and 3.1V
Features
Miniature 4-I/O micro SMD and SOT-23-5 package Logic controlled enable Stable with tantalum capacitors1µF Tantalum output capacitor Fast turn-on Thermal shutdown and short-circuit current limit
Applications
CDMA cellular handsets Wideband CDMA cellular handsets GSM cellular handsets Portable information appliances
Typical Application Circuit

Note:Pin Numbersin parenthesis indicate micro SMD package.
May 2004
LP3984
Micropower
150mA
Ultra
Low-Dropout
CMOS
oltage
Regulator
Subminiature
4-I/O
micro
SMD
Package
ic,good price


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