LP2967 Datasheet | National Semiconductor

Description The LP2967 is a 150 m A, 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 m V at 150 m A load, and 6 m V at 1 m A load for each output. Ground Pin Current: Typically 1 m A at 150 m A load, and 200 µA at 1 m A 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 n F 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 150m A output current, 300 m A peak Smallest possible size (micro SMD package) Requires minimum external ponents 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 puter Personal Digital Assistance (PDA) Camcorder, Personal Stereo and Camera Block Diagram © 2003 National Semiconductor Corporation DS101142 .national. Basic Application Circuit - SD1 and SD2 must be actively terminated. Tie them to VIN if their functions are not needed. - - Minimum capacitance are shown to ensure stability (may be increased without limit). - - - Reduces output noise (may be omitted if...