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LP3997MM-3.3 |LP3997MM33NSN/a50avaiMicropower 250mA CMOS LDO Regulator with Error Flag / Power-On-Reset
LP3997MMX-3.3 |LP3997MMX33NSN/a50avaiMicropower 250mA CMOS LDO Regulator with Error Flag / Power-On-Reset


LP3997MM-3.3 ,Micropower 250mA CMOS LDO Regulator with Error Flag / Power-On-ResetFeaturesn Laptop and Palm Computersn Low, 140mV, Dropout at 250mA Load.n PDA’sn Stable with Ceramic ..
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LP3997MMX-3.3 ,Micropower 250mA CMOS LDO Regulator with Error Flag / Power-On-ResetGeneral Descriptionn Virtually Zero I (Disabled).QThe LP3997 regulator is designed to meet the requ ..
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LP3997MM-3.3-LP3997MMX-3.3
Micropower 250mA CMOS LDO Regulator with Error Flag / Power-On-Reset
LP3997
Micropower 250mA CMOS LDO Regulator with Error
Flag/ Power-On-Reset
General Description

The LP3997 regulatoris designedto meetthe requirements portable, battery-powered systems, providing accurate
output voltage, low noise, and low quiescent current. The
LP3997 provides 3.3V outputatupto 250mA load current.
When switchedin shutdown mode,the power consumption virtually zero.
The LP3997is designedtobe stable with space saving
ceramic capacitorsas smallas 1µF.
The LP3997 also includesan out-of-regulation error flag.
Whenthe outputis more than5% belowits nominal voltage,
the error flag setsto low.Ifa capacitoris connectedto
device’s delay pin,a delayed power-on reset signal willbe
generated.
Features
Low, 140mV, Dropoutat 250mA Load. Stable with Ceramic Capactor. Low Noise, with Bypass Capacitor. Less than 70µA TypicalIQat 250mA. Virtually ZeroIQ (Disabled). Themal and Short Circuit Protection. 3.3V Output. For other voltage options, please contact your local NSC
sales office.
Package
Lead MSOP
For other package options contact your NSC sales office.
Applications
Portable Consumer Electronics Cellular Handsets Laptop and Palm Computers PDA’s Digital Cameras
Typical Application Circuit

PRELIMINARY
May 2004
LP3997
Micropower
250mA
CMOS
LDO
Regulator
with
Error
Flag
Power-On-Reset
ic,good price


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