LP2985A Datasheet | Texas Instruments

Features - VIN range (new chip): 2.5 V to 16 V - VOUT range (new chip): - 1.2 V to 5.0 V (fixed, 100-m V steps) - VOUT accuracy: - ±1% for A-grade legacy chip - ±1.5% for standard-grade legacy chip - ±0.5% for new chip only - ±1% output accuracy over load, and temperature for new chip - Output current: Up to 150 m A - Low IQ (new chip): 71 μA at ILOAD = 0 m A - Low IQ (new chip): 750 μA at ILOAD = 150 m A - Shutdown current: - 0.01 μA (typ) for legacy chip - 1.12 μA (typ) for new chip - Low noise: 30 μVRMS with 10-n F bypass capacitor - Output current limiting and thermal protection - Stable with 2.2-µF ceramic capacitors - High PSRR: 70 d B at 1 k Hz, 40 d B at 1 MHz - Operating junction temperature: - 40°C to +125°C - Package: 5-pin SOT-23 (DBV) 2 Applications - Washer and dryer - Land mobile radio - Active antenna system m MIMO - Cordless power tool - Motor drives and control boards 3 Description The LP2985 is a fixed-output, wide-input, low-noise, low-dropout voltage regulator supporting an input voltage range from 2.5 V to 16 V and up to 150 m A of load current. The LP2985 supports an output range of 1.2 V to 5.0 V (for new chip). Additionally, the LP2985 (new chip) has a 1% output accuracy across load, and temperature that can meet the needs of low-voltage microcontrollers (MCUs) and processors. Low output noise of 30 µVRMS (with 10-n F bypass capacitors) and wide bandwidth PSRR performance of greater than 70 d B at 1 k Hz and 40 d B at 1 MHz help attenuate the switching frequency of an upstream DC/DC converter and minimize post regulator filtering. The internal soft-start time and current limit protection reduce inrush current during start up, thus minimizing input capacitance. Standard protection features , such as overcurrent and overtemperature protection, are included. The LP2985 is available in a 5-pin 2.9-mm × 1.6-mm SOT-23 (DBV) package. PART NUMBER LP2985 Package Information PACKAGE(1) PACKAGING...