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LP3994TLX-1.8 |LP3994TLX18NSN/a1040avai1.8 V, 50mA CMOS voltage regulator with enable control


LP3994TLX-1.8 ,1.8 V, 50mA CMOS voltage regulator with enable controlGeneral Description Key Specificationsn Input Voltage Range 2.5 to 5.5VThe LP3994 regulator provide ..
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LP3994TLX-1.8
1.5 V, 50mA CMOS voltage regulator with enable control
LP3994
50mA CMOS V oltage Regulator with Enable Control
General Description

The LP3994 regulator provides 1.5V and 1.8V outputs op-
tionsatupto 50mA load current. The LP3994 providesan
accurate output voltage with low quiescent currentat full
current. Good noise performanceis obtained withouta noise
bypass capacitor. Thelow quiescent currentin operation can reducedto virtually zero whenthe deviceis disabledvia logic signalto the enable input.In conjuction with small
space saving capacitors, the small package sizeof the mi-
croSMD devices resultsina regulator solution witha very
small footprintfor any given application.
The LP3994is suitablefor general use within the rangeof
portable, battery-powered equipment and voltage options
other than 1.5V and 1.8V canbe made available.
The LP3994 also features short-circuit and thermal-
shutdown protection.
Performanceis specifiedfora -40˚Cto 125˚C temperature
range.
This deviceis available with output voltagesof 1.5V and
1.8Vin both microSMD and LLP packages. Other voltages
and alternative packages maybe made available, please
contact your local NSC sales office.
Features
4 Pin MicroSMD Package/6 Pin LLP No Noise Bypass Capacitor Required Logic Controlled Enable Stable with Low ESR Ceramic Capacitors Fast turnon time Thermal-Overload and Short Circuit Protection
Key Specifications
Input Voltage Range 2.5to 5.5V Output Voltage Range 1.5to 3.3V Output Current 50mA Noise Figure 95µVRMS PSRR 70dB Fast Startup 10µs Output Capacitor 1µF Low ESR Virtually Zero IQ(Disabled) 0.001µA
Package

Tiny4 Pin micro SMD 1mmby 1mmby 0.6mpin LLP SOT23 footprint
Applications
Bluetooth Devices Battery Powered Devices Portable Information Appliances
Typical Application Circuit

August 2004
LP3994
50mA
CMOS
oltage
Regulator
with
Enable
Control
ic,good price


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