LP2985 is a 150mA, 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 unequaled performance in all specifications critical to battery powered designs:
The LP2985 is a 150 mA fixed‑output voltage regulator designed for battery‑powered applications. It provides ultra low‑dropout (typically 300 mV at 150 mA) and low output noise, and it remains stable with output capacitor ESR as low as 5 mΩ, allowing the use of ceramic capacitors.
The device is offered in SOT‑23 and micro‑SMD (5‑bump) packages, supports a wide supply range (2.5 V to 16 V), and includes features such as over‑temperature/over‑current protection, a shutdown pin with <1 µA quiescent current, and 1 % output‑voltage tolerance (A‑grade). Ordering information, pin descriptions, and mechanical dimensions are provided for each package variant.
| Dropout Voltage (150 mA load) | 300 mV typical |
|---|---|
| Ground Pin Current (150 mA load) | 850 pA typical |
| Output Voltage Accuracy | 1 % (A‑grade) |
| Output Noise (with 10 nF bypass) | 30 pV typical |
| Supply Voltage Range (Operating) | 2.5 V to 16 V |
| Maximum Output Current | 150 mA |
The typical dropout voltage is 300 mV at a 150 mA load.
The regulator offers a 1 % tolerance output voltage (A‑grade).
With a 10 nF bypass capacitor, the output noise can be reduced to about 30 pV (typical).