AT1117

AT1117 1A Low Dropout Precision Regulator FEATURES Space Saving SOT-223 Surface Mount Package 3-Terminal Adjustable or Fixed 1.5V, 1.8V, 2.5V, 3.3V, 5V Output Current of 1A Guaranteed Dropout Voltage at Multiple Current Levels Fast Transient Response Built-in Thermal Limiting Good Noise Rejection APPLICATION High Efficiency Linear Regulators Post Regulators for Switching Supplies Microprocessor Supply Hard Drive Controllers Battery Chargers Adjustable Power Supply Immense Advance Tech. DESCRIPTION The AT1117 is a positive low dropout regulator designed to provide up to 1A of output current. The device is available in an adjustable version and fixed output voltages of 1.5V to 5V. All internal circuitry is designed to operate down to 1.2V input to output differential. Dropout voltage is guaranteed at a typical of 1.2V at 1A, decreasing at lower load currents. On chip trimming adjusts the reference/output voltage to within ±2%. Current limit is also trimmed in order to minimize the stre...