LP2985AITP-2.7

National Semiconductor is now part of Texas Instruments. Search http://www.ti.com/ for the latest technical information and details on our current products and services. LP2985 Micropower 150 mA Low-Noise Ultra Low-Dropout Regulator in SOT-23 and micro SMD Packages Designed for Use with Very Low ESR Output Capacitors General Description Features The LP2985 is a 150 mA, 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 LP2985 delivers unequalled performance in all specifications critical to battery-powered designs: Dropout Voltage: Typically 300 mV @ 150 mA load, and 7 mV @ 1 mA load. Ground Pin Current: Typically 850 µA @ 150 mA load, and 75 µA @ 1 mA load. Enhanced Stability: The LP2985 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 1 µA quiescent current when ON/OFF pin is pulled low. Smallest Possible Size: SOT-23 and micro SMD 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 2.5V to 5.0V, are available as standard products. Consult factory for custom voltages. ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ ■ Ultra low dropout voltage Guaranteed 150 mA output current Smallest possible size (SOT-23, micro SMD package) Requires minimum external components Stable with low-ESR output capacitor