The S-L2985 Series is a positive voltage regulator with a low dropout voltage, high output voltage accuracy, and low current consumption developed based on CMOS technology.
A built-in low on-resistance transistor provides a low dropout voltage and large output current, and a built-in overcurrent protector prevents the load current from exceeding the current capacitance of the output transistor.
An ON/OFF circuit ensures a long battery life. Compared with the voltage regulators using the conventional CMOS process, a larger variety of capacitors are available, including small ceramic capacitors. A super-small WLP-4B package realizes high-density mounting.

Features
* Output voltage: 1.5 V to 5.5 V, selectable in 0.1 V steps.
* High-accuracy output voltage: ±1.0%
* Low dropout voltage: 190 mV typ. (3.0 V output product, IOUT = 100 mA)
* Low current consumption:
- During operation: 50 μA typ., 90 μA max.
- During shutdown: 0.1 μA typ., 1.0 μA max.
* High peak current capability: 150 mA output is possible (@ VIN ≥ VOUT(S) + 1.0 V)*1
* Built-in ON/OFF circuit: Ensures long battery life.
* Low ESR capacitor can be used: A ceramic capacitor of 0.47 μF or more can be used for the output capacitor.
* High ripple rejection: 80 dB typ. (@ 1.0 kHz)
* Built-in overcurrent protector: Overcurrent of output transistor can be restricted.
* Super-small package: WLP-4B
* Lead-free products

Applications
* Power supply for battery-powered devices
* Power supply for personal communication devices
* Power supply for home electric/electronic appliances
* Power supply for cellular phones

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