Low drop-out regulators
26 September 2001
Power Electronics / Power Management
Sharp's voltage regulators are specified for most demanding power supply applications with a drop-out voltage of typically 0,5 V but down as low as 0,15 V. Fixed voltage devices cover all standard power rails from 1,5 to 15 V including the common VLSI IC power requirements for core and I/O voltages. The variable voltage types operate from 1,5 to 20 V.
Package options are TO-3P allowing 10 A max output current, TO-220 and SC-63 SMD with 0,5 A and 5 A and SOT-23 MSD with 180 mA or 300 mA.
All types incorporate an over-heat and current protection feature whilst reset signal generation is optional with some devices. A microcontroller can optimise the power budget via the on-off control pin, the current drain being a low 0,1 mA in the off-state.
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