The LT3080ET#PBF is an adjustable output, single resistor low dropout (LDO) regulator in 5 pin TO-220 package. This regulator can be paralleled to increase output current or spread heat in surface mounted boards. Architected as a precision current source and voltage follower allows this new regulator to be used in many applications requiring high current, adjustability to zero and no heat sink. The device brings out collector of pass transistor to allow low dropout operation down to 350mV when used with multiple supplies. A key feature of LT3080 is capability to supply wide output voltage range. By using a reference current through single resistor, the output voltage is programmed to any level between zero and 36V. The LT3080 is stable with 2.2μF of capacitance on output and uses small ceramic capacitors that do not require additional ESR as is common with other regulators. Internal protection circuitry includes current limiting and thermal limiting.
Adjustable output from 0V to 36V
1.1A output current
Wide input voltage range from 1.2V to 36V
Low dropout voltage of 350mV at 1.1A load current
1% initial accuracy of SET pin current
Low output noise of 40μVrms over 10Hz to 100KHz bandwidth
Less than 1mV load regulation
Less than 0.001%/V line regulation
Current limit with foldback and overtemperature protected
Operating junction temperature range from -40°C to 125°C
