LP3879MR-1.2 Datasheet, PDF (1/18 Pages) Texas Instruments – LP3879 Micropower 800mA Low Noise "Ceramic Stable" Voltage Regulator for Low

LP3879
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SNVS396B – MAY 2006 – REVISED APRIL 2013
LP3879 Micropower 800mA Low Noise "Ceramic Stable" Voltage Regulator for Low
Voltage Applications
Check for Samples: LP3879
FEATURES
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•2 Standard Output Voltage: 1.00V, 1.20V
• Custom Voltages Available from 1.0V to 1.2V
(50 mV Increments)
• Input Voltage: 2.5 to 6V
• 1% Initial Output Accuracy
• Designed for Use with Low ESR Ceramic
Capacitors
• Very Low Output Noise
• Sense Option Improves Load Regulation
• 8-Lead SO PowerPad and WSON Surface
Mount Packages
• <10 μA Quiescent Current in Shutdown
• Low Ground Pin Current at all Loads
• High Peak Current Capability
• Over-Temperature/Over-Current Protection
• -40°C to +125°C Junction Temperature Range
DESCRIPTION
The LP3879 is a 800 mA fixed-output voltage
regulator designed to provide high performance and
low noise in applications requiring output voltages
between 1.0V and 1.2V.
Using an optimized VIP (Vertically Integrated PNP)
process, the LP3879 delivers superior performance:
Ground Pin Current: Typically 5.5 mA @ 800 mA
load, and 200 µA @ 100 µA load.
Low Power Shutdown: The LP3879 draws less than
10 μA quiescent current when shutdown pin is pulled
low.
Precision Output: Ensured output voltage accuracy
is 1% at room temperature.
Low Noise: Broadband output noise is only 18 μV
(typical) with 10 nF bypass capacitor.
APPLICATIONS
• ASIC Power Supplies In:
– Desktops, Notebooks and Graphic Cards
– Set Top Boxes, Printers and Copiers
• DSP and FPGA Power Supplies
• SMPS Post-Regulator
• Medical Instrumentation
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Texas Instruments semiconductor products and disclaimers thereto appears at the end of this data sheet.
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PRODUCTION DATA information is current as of publication date.
Products conform to specifications per the terms of the Texas
Instruments standard warranty. Production processing does not
necessarily include testing of all parameters.
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