HKT1117

1A LOW DROPOUT VOLTAGE REGULATOR The HKT1117 series of adjustable and fixed voltage regulators are designed to provide 1A output current and to operate down to 1V input-to-output differential. The dropout voltage of the device is guaranteed maximum 1.3V at maximum output current, decreasing at lower load currents. On-chip trimming adjusts the reference voltage to 1%. Current limit is also trimmed, minimizing the stress under overload conditions on both the regulator and power source circuitry. The HKT1117 devices are pin compatible with other three-terminal SCSI regulators and are offered in the low profile surface mount SOT-223 package, in the TO-220 package and in the TO-252 (DPAK) plastic package. FEATURES Three Terminal Adjustable or Fixed Voltages* 1.5V, 1.8V, 2.5V, 2.85V, 3.3V and 5.0V Output Current of 1A Operates Down to 1V Dropout Line Regulation: 0.2% Max. Load Regulation: 0.4% Max. SOT-223, TO-252 and TO-220 package available APPLICATIONS High Efficiency Linear Regulators Post Regulators for Switching Supplies 5V to 3.3V Linear Regulator Battery Chargers Active SCSI Terminators Power Management for Notebook Battery Powered Instrumentation MAXIMUM RATINGS (TA=25℃ unless otherwise noted) Symbol VIN (Notes 1) IOUT TJ ΘJA ΘJA ΘJA PD PD PD Description Input Voltage DC Output Current Operating Junction Temperature Range Thermal Resistance (SOT-223) Thermal Resistance (TO-252) Thermal Resistance (TO-220) Maximum Power Dissipation (SOT-223) M...