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LP2951H-MCP |LP2951HMCPNSN/a12avaiSeries of Adjustable Micropower Voltage Regulators


LP2951H-MCP ,Series of Adjustable Micropower Voltage RegulatorsFeatures100 mA). They are ideally suited for use in battery-poweredn 5V, 3V, and 3.3V versions avai ..
LP2951J/883 ,Series of Adjustable Micropower Voltage RegulatorsFeatures100mA). They are ideally suited for use in battery-poweredn 5V, 3V, and 3.3V versions avail ..
LP2951L-S08-R , 100 mA LOW-DROPOUT VOLTAGE REGULATOR
LP2951N ,Series of Adjustable Micropower Voltage RegulatorsElectrical Characteristics....... 712.4 Trademarks..... 347.7 Typical Characteristics........ 1012. ..
LP2951N ,Series of Adjustable Micropower Voltage RegulatorsMaximum Ratings.. 511.3 WSON Mounting...... 337.2 ESD Ratings........ 512 Device and Documentation ..
LP2952AIM ,Adjustable Micropower Low-Dropout Voltage RegulatorBlock DiagramsLP2952 LP29530111270201112701 2005 National Semiconductor Corporation DS011127 Pinout ..
LSG F971 ,Multi ChipLEDApplications● hand phone back lighting● coupling in any light pipe● LCD back lighting● switch back ..
LSG T670 , Multi TOPLED
LSG T770 , Multi TOPLEDRG
LSGF971 ,Multi ChipLEDFeatures ● colors: super-red (628 nm) and green (572 nm)● color mixing is possible● each chi ..
LSGT670 , Multi TOPLED
LSGT670-J+L , Multi TOPLED


LP2951H-MCP
Series of Adjustable Micropower Voltage Regulators
LP2950/LP2951
Series of Adjustable Micropower V oltage Regulators
General Description

The LP2950 and LP2951 are micropower voltage regulators
with very low quiescent current (75μA typ.) and very low
dropout voltage (typ.40 mVat light loads and 380 mVat
100 mA). They are ideally suitedfor usein battery-powered
systems. Furthermore,the quiescent currentofthe LP2950/
LP2951 increases only slightlyin dropout, prolonging battery
life.
The LP2950-5.0is availablein the surface-mount D-Pak
package, andin the popular 3-pin TO-92 package for
pin-compatibility with older 5V regulators. The 8-lead
LP2951is availablein plastic, ceramic dual-in-line,or metal
can packages and offers additional system functions.
One such featureisan error flag output which warnsofa low
output voltage, often dueto falling batteriesonthe input.It
maybe usedfora power-on reset.A second featureis the
logic-compatible shutdown input which enablesthe regulatorbe switchedon andoff. Also,the part maybe pin-strapped
fora 5V, 3V,or 3.3V output (dependingon the version),or
programmed from 1.24Vto 29V withan external pairofre-
sistors.
Careful designofthe LP2950/LP2951 has minimizedall con-
tributionstothe error budget. This includesa tight initial tol-
erance (.5% typ.), extremely good load and line regulation
(.05% typ.) anda very low output voltage temperature coef-
ficient, makingthe part usefulasa low-power voltage refer-
ence.
Features
5V, 3V, and 3.3V versions available High accuracy output voltage Guaranteed 100 mA output current Extremely low quiescent current Low dropout voltage Extremely tight load and line regulation Very low temperature coefficient Useas Regulatoror Reference Needs minimum capacitancefor stability Current and Thermal Limiting Stable with low-ESR output capacitors
LP2951 versions only
Error flag warnsof output dropout Logic-controlled electronic shutdown Output programmable from 1.24to 29V
Block Diagram and Typical Applications
LP2950

DS008546-25
LP2951

DS008546-1
January 2000
LP2950/LP2951
Series
Adjustable
Micropower
oltage
Regulators
ic,good price


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