DESCRIPTION
●The LT®3082 is a 200mA low dropout linear regulator that can be paralleled to increase output current or spread heat in surface mounted boards. Architected as a precision current source and voltage follower, this regulator benefits many applications requiring high current, adjustability to zero and no heat sink. The LT3082 withstands reverse input voltages and reverse output-to-input voltages without reverse-current flow.
●A key feature of the LT3082 is the capability to supply a wide output voltage range. A precision “0” TC 10μA reference current source drives a single resistor to program the output voltage to any level between zero and 38.5V. The LT3082 is stable with only 2.2μF of capacitance on the output; the IC uses small ceramic capacitors that do not require additional ESR as is common with other regulators.
●FEATURES
●■ Outputs May Be Paralleled for Higher Output Current or Heat Spreading
●■ Maximum Output Current: 200mA
●■ Wide Input Voltage Range: 1.2V to 40V
●■ Output Adjustable to 0V
●■ Stable with Minimum 2.2μF Ceramic Capacitors
●■ Single Resistor Sets Output Voltage
●■ Initial Set Pin Current Accuracy: 1%
●■ Low Output Noise: 33μVRMS (10Hz to 100kHz)
●■ Reverse-Battery Protection
●■ Reverse-Current Protection
●■ <1mV Load Regulation Typical
●■ <0.001%/V Line Regulation Typical
●■ Current Limit and Thermal Shutdown Protection
●■ Available in 8-Lead SOT-23, 3-Lead SOT-223 and 8-Lead 3mm × 3mm DFN Packages
●APPLICATIONS
●■ All-Surface Mount Power Supply
●■ Post Regulator for Switching Supplies
●■ Low Parts Count Variable Voltage Supply
●■ Low Output Voltage Supply
●■ Battery Powered Regulator
