LT3022 1 A, 10 V VLDO™ Regulators

Analog Devices' LT3022 is a very low dropout (VLDO) voltage linear regulator that operates from as low as 0.9 V. The device supplies 1 A output current with 145 mV typical dropout voltage. The LT3022 is ideal for low-input voltage to low-output voltage applications, providing comparable electrical efficiency to a switching regulator. The regulator optimizes stability and transient response with low ESR ceramic output capacitors as small as 10 μF. Other LT3022 features include 0.05% typical line regulation and 0.05% typical load regulation. In shutdown, quiescent current typically drops to 7.5 μA. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting with hysteresis, and reverse-current protection.

The LT3022 is available three fixed output voltages, 1.2 V, 1.5 V, and 1.8 V, as well as an adjustable device. These regulators are available in both DFN and MSOP packages. The LT3022 is ideal for logic supplies, FPGA core, and battery-powered applications.