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LP2992AILDX-1.8 Datasheet(PDF) 1 Page - National Semiconductor (TI) |
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LP2992AILDX-1.8 Datasheet(HTML) 1 Page - National Semiconductor (TI) |
1 / 15 page LP2992 Micropower 250 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and LLP Packages Designed for Use with Very Low ESR Output Capacitors General Description The LP2992 is a 250 mA, fixed-output voltage regulator designed to provide ultra low-dropout and low noise in bat- tery powered applications. Using an optimized VIP™ (Vertically Integrated PNP) pro- cess, the LP2992 delivers unequalled performance in all specifications critical to battery-powered designs: Dropout Voltage: Typically 450 mV @ 250 mA load, and 5mV @ 1 mA load. Ground Pin Current: Typically 1500 µA @ 250 mA load, and 75 µA @ 1 mA load. Enhanced Stability: The LP2992 is stable with output ca- pacitor ESR as low as 5 m Ω, which allows the use of ceramic capacitors on the output. Sleep Mode: Less than 1 µA quiescent current when ON/OFF pin is pulled low. Smallest Possible Size: SOT-23 and LLP packages use absolute minimum board space. Precision Output: 1% tolerance output voltages available (A grade). Low Noise: By adding a 10 nF bypass capacitor, output noise can be reduced to 30 µV (typical). Multiple voltage options, from 1.5V to 5.0V, are available as standard products. Consult factory for custom voltages. Features n Ultra low dropout voltage n Guaranteed 250 mA output current n Smallest possible size (SOT-23, LLP package) n Requires minimum external components n Stable with low-ESR output capacitor n < 1 µA quiescent current when shut down n Low ground pin current at all loads n Output voltage accuracy 1% (A Grade) n High peak current capability n Wide supply voltage range (16V max) n Low Z OUT: 0.3 Ω typical (10 Hz to 1 MHz) n Overtemperature/overcurrent protection n −40˚C to +125˚C junction temperature range n Custom voltages available Applications n Cellular Phone n Palmtop/Laptop Computer n Personal Digital Assistant (PDA) n Camcorder, Personal Stereo, Camera Block Diagram 20029401 VIP™ is a trademark of National Semiconductor Corporation. June 2002 © 2002 National Semiconductor Corporation DS200294 www.national.com |
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