The LT3022 is a 1A low dropout linear regulator or “VLDO™”, featuring input voltage capability down to 0.9V and adjustable output voltage down to 0.2V. The LT3022’s low V_IN capability, coupled with the device’s low 145mV dropout make it ideal for low-voltage, high current rails in digital ICs such as FPGAs, ASICs, DSPs, microprocessors and microcontrollers. The LT3022 still exhibits good PSRR and transient response even near dropout, unlike competing LDOs, with a dropout spec of only 285mV over line, load and temperature. This also enables applications in general high-efficiency, low-V_IN-to-low-V_OUT conversion (for example, 1.8V to 1.5V, 1.5V to 1.2V or 1.2V to 0.9V). In addition, the device offers low power operation at only 400µA quiescent current with less than 10µA in shutdown, saving run time in handheld applications. The LT3022 regulator optimizes stability and transient response with low ESR, and ceramic output capacitors as small as 10µF. The LT3022 is highly accurate, featuring ±3% output voltage accuracy over line, load and temperature, 0.1% typical line regulation and 0.1% typical load regulation. The device’s bulletproof internal protection circuitry includes reverse-battery protection, reverse output protection, reverse output-to-input (current) protection, current limiting, and thermal limiting with hysteresis.