LP2982 Datasheet | National Semiconductor

Description The LP2982 is a 50 m A, fixed-output voltage regulator designed to provide ultra low dropout and lower noise in battery powered applications. Using an optimized VIP™ (Vertically Integrated PNP) process, the LP2982 delivers unequaled performance in all specifications critical to battery-powered designs: Dropout Voltage: Typically 120 m V @ 50 m A load, and 7 m V @ 1 m A load. Ground Pin Current: Typically 375 µA @ 50 m A load, and 80 µA @ 1 m A load. Sleep Mode: Less than 1 µA quiescent current when on/off pin is pulled low. Smallest Possible Size: SOT-23 and micro SMD packages use absolute minimum board space. Precision Output: 1.0% tolerance output voltages available (A grade). Low Noise: By adding an external bypass capacitor, output noise can be reduced to 30 µV (typical). Ten output voltage versions, from 2.5V to 5.0V, are available as standard products. Features n n n n n n n n n n n n n n Ultra low dropout voltage Guaranteed 50 m A output current Typical dropout voltage 180 m V @ 80 m A Smallest possible size (SOT-23, micro SMD package) Requires minimum external ponents < 1 µA quiescent current when shutdown Low ground pin current at all loads Output voltage accuracy 1.0% (A Grade) High peak current capability (150 m A typical) Wide supply voltage range (16V max) Low ZOUT 0.3Ω typical (10 Hz to 1 MHz) Overtemperature/overcurrent protection - 40˚C to +125˚C junction temperature range Custom voltages available Applications n n n n Cellular Phone Palmtop/Laptop puter Personal Digital Assistant (PDA) Camcorder, Personal Stereo, Camera Block Diagram DS012679-1 VIP™ is a trademark of National Semiconductor Corporation. © 2000 National Semiconductor Corporation DS012679 .national. Connection Diagrams 5-Lead Small Outline Package (M5) micro SMD, 5 Bump Package (BPA05) DS012679-55 DS012679-3 Top View See NS Package Number MF05A For ordering information see Table 1 Bottom View See NS Package Number BPA05 Basic Application Circuit DS012679-2 -...