Power by Linear / Analog Devices' LT3020 is a very low dropout voltage (VLDO) linear regulator. This device operates from input supplies down to 0.9 V that can supply 100 mA of output current with a typical dropout voltage of 150 mV. The LT3020 is ideal for low-input voltage to low-output voltage applications, providing comparable electrical efficiency to that of a switching regulator.

The LT3020 regulator optimizes stability and transient response with low ESR, ceramic output capacitors as small as 2.2 µF. Other LT3020 features include 0% typical line regulation and 0.2% typical load regulation. In shutdown, quiescent current drops to 3 µA.

Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting with hysteresis, and reverse-current protection. The LT3020 is available as an adjustable output device with an output range down to the 200 mV reference. Three fixed output voltages, 1.2 V, 1.5 V and 1.8 V, are also available.

These regulators come in MSOP and DFN packages that have a temperature range of -40°C to +125°C. The LT3020 was designed for battery powered systems such as modems, smartphones, and general low current regulator applications.