LT3022 Datasheet | Linear Technology

Features n VIN Range: 0.9V to 10V n Dropout Voltage: 145m V Typical n Output Current: 1A n Adjustable Output (VREF = VOUT(MIN) = 200m V) n Fixed Output Voltages: 1.2V, 1.5V, 1.8V n Stable with Low ESR, Ceramic Output Capacitors (10µF Minimum) n 0.05% Typical Load Regulation from 1m A to 1A n Quiescent Current: 400µA Typical n 7.5µA Typical Quiescent Current in Shutdown n Current Limit Protection n Reverse-Battery Protection with No Reverse Current n Thermal Limiting with Hysteresis n 16-Lead (5mm × 3mm) DFN and MSOP Packages APPLICATIONS n High Efficiency Linear Regulators n Battery-Powered Systems n Logic Supplies n Post Regulator for Switching Supplies n Wireless Modems n FPGA Core Supplies LT3022/LT3022-1.2 LT3022-1.5/LT3022-1.8 1A, 0.9V to 10V, Very Low Dropout Linear Regulator DESCRIPTION The LT®3022 is a very low dropout voltage (VLDO™) linear regulator that operates from single input supplies down to 0.9V. The device supplies 1A output current with 145m V typical dropout voltage. The LT3022 is ideal for low input voltage to low output voltage applications, providing parable electrical efficiency to a switching regulator. The regulator optimizes stability and transient response with low ESR ceramic output capacitors as small as 10µF. Other LT3022 Features include 0.05% typical line regulation and 0.05% typical load regulation. In shutdown, quiescent current typically drops to 7.5µA. Internal protection circuitry includes reverse-battery protection, current limiting, thermal limiting with hysteresis and reverse-current protection. The LT3022 is available as an adjustable device with an output voltage range down to the 200m V reference. Three fixed output voltages, 1.2V, 1.5V and 1.8V are also offered. The LT3022 regulator is available in the thermally enhanced low profile (0.75mm) 16-lead (5mm × 3mm) DFN and MSOP packages. L, LT, LTC, LTM, Linear Technology and the Linear logo are registered trademarks of Linear Technology Corporation. VLDO...