LP3966ES-2.5 ,3A Fast Ultra Low Dropout Linear RegulatorApplicationsthe shutdown pin is pulled low.n Microprocessor power suppliesError Flag: Error flag go ..
LP3966ES-3.3 ,3A Fast Ultra Low Dropout Linear Regulatorapplications. The LP3963/LP3966n Available in TO-263 and TO-220 packagesare developed on a CMOS pro ..
LP3966ES-5.0 ,3A Fast Ultra Low Dropout Linear Regulatorapplicationsload, and temperature).Typical Application Circuits10126701*SD and ERROR pins must be p ..
LP3966ES-ADJ ,3A Fast Ultra Low Dropout Linear RegulatorLP3963/LP3966 3A Fast Ultra Low Dropout Linear RegulatorsMay 2003LP3963/LP39663A Fast Ultra Low Dro ..
LP3966ES-ADJ/NOPB ,3A Fast Ultra Low Dropout Linear Regulator 5-DDPAK/TO-263 -40 to 125Pin Descriptions for TO-220-5 and DDPAK/TO-263-5 PackagesLP3963 LP3966Pin #Name Function Name Funct ..
LP3966ESX-1.8 ,3A Fast Ultra Low Dropout Linear Regulatorapplications sectionfor more information.** See Application Hints
LT1054I , SWITCHED-CAPACITOR VOLTAGE CONVERTERS WITH REGULATORS
LT1054IDW ,Switched-Capacitor Voltage Converters With RegulatorMaximum Ratings.. 410.1 Layout Guidelines.... 246.2 ESD Ratings ...... 410.2 Layout Example....... ..
LT1054IDWR ,Switched-Capacitor Voltage Converters With Regulator SLVS033G–FEBRUARY 1990–REVISED JULY 20155 Pin Configuration and FunctionsP Package8-Pin PDIPTop Vi ..
LT1054IDWRG4 ,Switched-Capacitor Voltage Converters With Regulator 16-SOIC -40 to 85Features... 18 Application and Implementation...... 132 Applications..... 18.1 Application Informat ..
LT1054IN8 ,Switched-Capacitor Voltage Converter with Regulator
LT1054IN8 ,Switched-Capacitor Voltage Converter with Regulator
LP3963ES-1.8-LP3963ES-2.5-LP3963ES-5.0-LP3963ESX-1.8-LP3963ESX-2.5-LP3963ESX-3.3-LP3963ESX-5.0-LP3963ET-2.5-LP3963ET-3.3-LP3963ET-5.0-LP3966ES-1.8-LP3966ES-2.5-LP3966ES-3.3-LP3966ES-5.0-LP3966ES-ADJ-LP3966ESX-1.8-LP3966ESX-2.5-LP3966ESX-3.3-LP3966ESX-ADJ-LP3966ET-1
3A Fast Ultra Low Dropout Linear Regulator
LP3963/LP3966 Fast Ultra Low Dropout Linear Regulators
General DescriptionThe LP3963/LP3966 seriesof fast ultra low-dropout linear
regulators operate froma +2.5Vto +7.0V input supply. Wide
rangeof preset output voltage options are available. These
ultra low dropout linear regulators respond very quicklyto
step changesin load which makes them suitablefor low
voltage microprocessor applications. The LP3963/LP3966
are developedona CMOS process which allows low quies-
cent current operation independentof output load current.
This CMOS process also allows the LP3963/LP3966to op-
erate under extremely low dropout conditions.
Dropout Voltage: Ultra low dropout voltage; typically 80mV 300mA load current and 800mVat3A load current.
Ground Pin Current: Typically 6mAat3A load current.
Shutdown Mode: Typically 15µA quiescent current when
the shutdownpinis pulled low.
Error Flag: Error flag goes low when the output voltage
drops 10% below nominal value (for LP3963).
SENSE: Sense pin improves regulationat remote loads.
(For LP3966)
Precision Output Voltage: Multiple output voltage options
are available ranging from 1.2Vto 5.0V and adjustable
(LP3966), witha guaranteed accuracyof ±1.5%at room
temperature, and ±3.0% overall conditions (varying line,
load, and temperature).
Features Ultra low dropout voltage Low groundpin current Load regulationof 0.06% 15µA quiescent currentin shutdown mode Guaranteed output currentof3A DC Availablein TO-263 and TO-220 packages Output voltage accuracy± 1.5% Error flag indicates output status (LP3963) Sense option improves load regulation (LP3966) Minimum output capacitor requirements Overtemperature/overcurrent protection −40˚Cto +125˚C junction temperature range
Applications Microprocessor power supplies GTL, GTL+, BTL, and SSTL bus terminators Power suppliesfor DSPs SCSI terminator Post regulators High efficiency linear regulators Battery chargers Other battery powered applications
Typical Application Circuits*SDand ERRORpins mustbe pulled high througha 10kΩ pull-up resistor. Connectthe ERRORpinto groundifthis functionisnot used.See applications
sectionfor more information.See Application Hints
May 2003
LP3963/LP3966
Fast
Ultra
Low
Dropout
Linear
Regulators
