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LP2967

National Semiconductor
Part Number LP2967
Manufacturer National Semiconductor
Description Dual Micropower 150 mA Low-Dropout Regulator
Published Mar 22, 2005
Detailed Description LP2967 Dual Micropower 150 mA Low-Dropout Regulator in micro SMD Package April 2003 LP2967 Dual Micropower 150 mA Low-...
Datasheet PDF File LP2967 PDF File

LP2967
LP2967

Overview
LP2967 Dual Micropower 150 mA Low-Dropout Regulator in micro SMD Package April 2003 LP2967 Dual Micropower 150 mA Low-Dropout Regulator in micro SMD Package General Description The LP2967 is a 150 mA, dual fixed-output voltage regulator designed to provide ultra low-dropout and low noise in battery powered applications.
Using an optimized VIP (Vertically Integrated PNP) process, the LP2967 delivers unequalled performance in all specifications critical to battery powered designs: Dropout Voltage: Typically 240 mV at 150 mA load, and 6 mV at 1 mA load for each output.
Ground Pin Current: Typically 1 mA at 150 mA load, and 200 µA at 1 mA load for each output.
Enhanced Stability: The LP2967 is stable with output capacitor ESR as low as 5 mΩ, which allows the use of ceramic capacitors on the output.
Sleep Mode: Less than 2 µA quiescent current when SD pins are pulled low.
Smallest Possible Size: micro SMD package uses absolute minimum board space.
Precision Output: 1.
25% tolerance.
Low Noise: By adding a 100 nF bypass capacitor, output noise can be reduced to 30 µV (typical).
Multiple voltage options, from 1.
8V to 5.
0V, are available.
Consult factory for custom voltages.
Features n n n n n n n n n n n n Ultra low drop-out voltage Guaranteed 150mA output current, 300 mA peak Smallest possible size (micro SMD package) Requires minimum external components Stable with 2.
2 µF tantalum or ceramic capacitor Output voltage accuracy ± 1% < 2 µA quiescent current when shut down Wide supply voltage range (16V max.
) Low ZOUT: 0.
3Ω typical (10 Hz to 1 MHz) Over temperature/over current protection −40˚C to +125˚C junction temperature range Custom voltages available Applications n n n n Cellular Phone Palmtop/Laptop Computer Personal Digital Assistance (PDA) Camcorder, Personal Stereo and Camera Block Diagram 10114201 © 2003 National Semiconductor Corporation DS101142 www.
national.
com LP2967 Basic Application Circuit 10114202 *SD1 and SD2 must be actively terminated.
Tie t...


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