LP38843SX-1.5 ,3A Fast-Response Ultra Low Dropout Linear RegulatorsFeaturesn Ideal for conversion from 1.8V or 1.5V inputsThe LP38843 is a high-current, fast-response ..
LP38851MR-ADJ/NOPB ,800 mA Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 8-SO PowerPAD -40 to 125FEATURES DESCRIPTIONThe LP38851-ADJ is a high current, fast response2• Adjustable V Range of 0.80V ..
LP38853MR-ADJ ,3A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 8-SO PowerPAD -40 to 125Features 3 DescriptionThe LP38853 is a high-current, fast-response1• Wide V Supply Operating Range: ..
LP38853SADJ ,3A Fast-Response High-Accuracy Adjustable LDO Linear Regulator with Enable and Soft-Start 7-DDPAK/TO-263 -40 to 125Maximum Ratings may cause permanent damage to the device. These are stress ratingsonly, which do no ..
LP38855S-1.2 ,1.5A Fast-Response High-Accuracy LDO Linear Regulator with Enable 5-DDPAK/TO-263 -40 to 125FEATURES DESCRIPTIONThe LP38855 is a high-current, fast-response2• Standard V Values of 0.8V and 1. ..
LP38856S-1.2 , 3A Fast-Response High-Accuracy LDO Linear Regulator with Enable
LT1021DCN8-7 ,Precision Reference
LT1021DCN8-7 ,Precision Reference
LT1021DCN8-7 ,Precision Reference
LT1021DCS8-10#PBF ,Precision Reference
LT1021DCS8-10#PBF ,Precision Reference
LT1021DCS8-5#PBF ,Precision Reference
LP38843S-1.2-LP38843SX-1.5
3A Fast-Response Ultra Low Dropout Linear Regulators
LP38843 Ultra Low Dropout Linear Regulators
Stable with Ceramic Output Capacitors
General DescriptionThe LP38843isa high-current, fast-response regulator
which can maintain output voltage regulation with minimum
inputto output voltage drop. Fabricatedona CMOS process,
the device operates from two input voltages: Vbias provides
voltageto drive the gateof the N-MOS power transistor,
while Vinis the input voltage which supplies powerto the
load. The useofan external bias rail allows the partto
operate from ultra low Vin voltages. Unlike bipolar regula-
tors,the CMOS architecture consumes extremely low quies-
cent currentat any output load current. The useof an
N-MOS power transistor resultsin wide bandwidth,yet mini-
mum external capacitanceis requiredto maintain loop sta-
bility.
The fast transient responseof these devices makes them
suitablefor usein powering DSP, Microcontroller Core volt-
ages and Switch Mode Power Supply post regulators. The
partsare availablein TO-220 and TO-263 packages.
Dropout Voltage: 210 mV (typ)@3A load current.
Quiescent Current:30 mA (typ)atfull load.
Shutdown Current:30nA (typ) when S/Dpinis low.
Precision Output Voltage: 1.5% room temperature accu-
racy.
Features Idealfor conversion from 1.8Vor 1.5V inputs Designedfor use with low ESR ceramic capacitors 0.8V, 1.2V and 1.5V standard voltages available Ultra low dropout voltage (210mV@3A typ) 1.5% initial output accuracy Load regulationof 0.1%/A (typical) 30nA quiescent currentin shutdown (typical) Low groundpin currentatall loads Over temperature/over current protection Availablein5 lead TO220 and TO263 packages −40˚Cto +125˚C junction temperature range
Applications ASIC Power SuppliesIn: Desktops, Notebooks, and Graphics Cards, Servers Gaming Set Top Boxes, Printers and Copiers Server Core andI/O Supplies DSP and FPGA Power Supplies SMPS Post-Regulator
Typical Application Circuit20102901 Minimum value requiredif Tantalum capacitoris used (see Application Hints).
December 2004
LP38843
Fast-Response
Ultra
Low
Dropout
Linear
Regulators
Stable
with
Ceramic
Output
Capacitors
