The LT3082 achieves superior performance over prior regulators. Its regulation is independent of output voltage, and it operates up to 40V with output noise of only 40uVRMS over a wide 10Hz to 100kHz bandwidth. The low TC current reference allows single resistor adjustment of output voltage, and the device is stable with a 2.2uF ceramic or electrolytic capacitor on the output. Minimum operating current is only 0.5mA.
According to Linear Technology’s Senior Product Marketing Engineer Steve Knoth, The LT3082 regulator provides designers a low current, all-surface-mount regulator where a linear, low noise output is needed for applications such as high-frequency serial data links or where paralleling for higher current and heat spreading eases surface mount design. With its ability to provide zero output, this versatile device can control powering down parts of the system.
The LT3082 is offered in three packages: the low profile (0.75mm) 8-lead DFN (3mm x 3mm), the 8-pin SOT-23 and the 3-pin SOT-223. Both the LT3082E and LT3082I feature an operating junction temperature of -40ºC to +125ºC, while the LT3082MP operates from -55ºC to +125ºC junction temperature.