Linear Technology:SMT LDO can be paralleledfor high output current without hot spots

SMT LDO can be paralleledfor high output current without hot spots.Part allows output voltage to be adjusted as low as 0 V.

Claimed by the company to be the only such device, the three-terminal 1.1-A LT3080 LDO can be easily paralleled for high output current without hot spots. The device uses a current reference to allow sharing between multiple regulators with a small length of PCB trace as ballastenabling multi-amp linear regulation in all surface-mount systems without heat sinks.hlcn6sep2007The output voltage is adjustable, spanning a wide range from 0 to 40 V, and the on-chip trimmed reference achieves accuracy as high as ¡À1%. Featuring wide input voltage capability from 1.2 to 40 V, the device has a dropout voltage of only 300 mV at full load.Housed in an 8-leaded DFN, an 8-leaded thermally enhanced MSOP, or a 3-leaded SOT-223 package, the LT3080 dissipates 1 to 2 W in surface-mount applications without a heat sink. In addition, the device is housed in a TO-220 power package for mounting to heat sinks for higher power dissipation. (From $1.88 ea/1,000¡ªavailable now.)