LP2987 Datasheet | National Semiconductor

Description The LP2987/8 are fixed-output 200 m A precision LDO voltage regulators with power-ON reset delay which can be implemented using a single external capacitor. The LP2988 is specifically designed for noise-critical applications. A single external capacitor connected to the Bypass pin reduces regulator output noise. Using an optimized VIP™ (Vertically Integrated PNP) process, these regulators deliver superior performance: Dropout Voltage: 180 m V @ 200 m A load, and 1 m V @ 1 m A load (typical). Ground Pin Current: 1 m A @ 200 m A load, and 200 µA @ 10 m A load (typical). Sleep Mode: The LP2987/8 draws less than 2 µA quiescent current when shutdown pin is held low. Error Flag/Reset: The error flag goes low when the output drops approximately 5% below nominal. This pin also provides a power-ON reset signal if a capacitor is connected to the DELAY pin. Precision Output: Standard product versions of the LP2987 and LP2988 are available with output voltages of 5.0V, 3.8V, 3.3V, 3.2V, 3.0V, or 2.8V, with guaranteed accuracy of 0.5% (“A” grade) and 1% (standard grade) at room temperature. Features n n n n n n n n n n n n Ultra low dropout voltage Power-ON reset delay requires only one ponent Bypass pin for reduced output noise (LP2988) Guaranteed continuous output current 200 m A Guaranteed peak output current > 250 m A SO-8 and mini SO-8 surface mount packages < 2 µA quiescent current when shutdown Low ground pin current at all loads 0.5% output voltage accuracy (“A” grade) Wide supply voltage range (16V max) Overtemperature/overcurrent protection - 40˚C to +125˚C junction temperature range Applications n Cellular Phone n Palmtop/Laptop puter n Camcorder, Personal Stereo, Camera Block Diagrams DS100017-1 DS100017-2 VIP™ is a trademark of National Semiconductor Corporation. © 1999 National Semiconductor Corporation DS100017 .national. Connection Diagram (LP2987) Surface Mount Packages: Mini SO-8 Package Type MM: See NS Package Drawing Number MUA08A SO-8 Package Type...