Programmable 200mA Linear Regulator Features 0V Output Operation, Bulletproof Protection & Is Easily Paralleled
The latest member of a next-generation family of linear regulators, adjustable down to 0 volts with a single resistor and easily paralleled for higher current, is now available from Linear Technology. The LT3082 200mA PNP low dropout regulator (LDO) features a new architecture using a current reference and voltage follower. This architecture permits the paralleling of multiple regulators and sharing of output current using small amounts of PCB trace as ballast resistors. Current sharing spreads the heat in an all-surface-mount system. Extensive protection features include current limiting and thermal limiting as well as reverse input protection for the regulator and the load.The
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.