MIC5246 Datasheet | Micrel Semiconductor

Micrel 150m A µCap CMOS LDO Regulator Preliminary Information General Description The MIC5246 is an efficient, precise CMOS voltage regulator optimized for low-noise applications. The MIC5246 offers better than 1% initial accuracy, extremely-low-dropout voltage (typically 150m V at 150m A) and constant ground current (typically 85µA)over load . The MIC5246 Features an error flag that indicates an output fault condition such as overcurrent, thermal shutdown and dropout. The MIC5246 provides a very low noise output, ideal for RF applications where quiet voltage sources are required. Designed specifically for hand-held and battery-powered devices, the MIC5246 provides a TTL-logic-patible enable pin. When disabled, power consumption drops nearly to zero. The MIC5246 also works with low-ESR ceramic capacitors, reducing the amount of board space necessary for power applications, critical in hand-held wireless devices. Key Features include current limit, thermal shutdown, a pushpull output for faster transient response, and an active clamp to speed up device turnoff. Available in the Itty Bitty™ SOT-23-5 package, the MIC5246 also offers a range of fixed output voltages. Features - - - - - - - - - - - - - - - - - - - Error flag indicates fault condition Ultralow dropout- 100m V @ 100m A Load independent, ultralow ground current: 85µA 150m A output current Current limiting Thermal Shutdown Tight load and line regulation “Zero” off-mode current Stability with low-ESR capacitors Fast transient response TTL-Logic-controlled enable input Cellular phones and pagers Cellular accessories Battery-powered equipment Laptop, notebook, and palmtop puters PCMCIA VCC and VPP regulation/switching Consumer/personal electronics SMPS post-regulator/dc-to-dc modules High-efficiency linear power supplies Applications Ordering Information Part Number MIC5246-2.6BM5 MIC5246-2.7BM5 MIC5246-2.8BM5 MIC5246-2.85BM5 MIC5246-3.0BM5 MIC5246-3.3BM5 Marking LT26 LT27 LT28 LT2J LT30...