LP3879 Datasheet | National Semiconductor

Description The LP3879 is a 800 m A 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 m A @ 800 m A 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: Guaranteed output voltage accuracy is 1% at room temperature. Low Noise: Broadband output noise is only 18 µV (typical) with 10 n F bypass capacitor. Features n Standard output voltage: 1.00V, 1.20V n Custom voltages available from 1.0V to 1.2V (50 m V increments) n Input voltage: 2.5 to 6V n 1% initial output accuracy n Designed for use with low ESR ceramic capacitors n Very low output noise n Sense option improves load regulation n 8 Lead PSOP and LLP surface mount packages n < 10 µA quiescent current in shutdown n Low ground pin current at all loads n High peak current capability n Over-temperature/over-current protection n -40˚C to +125˚C junction temperature range Applications n ASIC Power Supplies In: - Desktops, Notebooks and Graphic Cards - Set Top Boxes, Printers and Copiers n DSP and FPGA Power Supplies n SMPS Post-Regulator n Medical Instrumentation Basic Application Circuit - Capacitance values shown are minimum required to assure stability. Larger output capacitor provides improved dynamic response. Output capacitor must meet ESR requirements (see Application Information). - - The Shutdown pin must be actively terminated (see Application Information). Tie to INPUT (Pin 4) if not used. VIP™ is a trademark of National Semiconductor Corporation. © 2006 National Semiconductor Corporation DS201613 .national. Connection Diagrams 8 Lead PSOP Package (MRA) 8 Lead LLP Surface Mount Package (SD) Top View See NS Package Number MRA08A Top View...