This part is a kind of semiconductor called MIC29502BU.

Function of this product has High-Current Low-Dropout Regulators.

Manufacturers : Micrel Semiconductor

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MIC29150/29300/29500/29750 Micrel MIC29150/29300/29500/29750 Series High-Current Low-Dropout Regulators General Description The MIC29150/29300/29500/29750 are high current, high accuracy, low-dropout voltage regulators. Using Micrel's proprietary Super ßeta PNP™ process with a PNP pass element, these regulators feature 300mV to 370mV (full load) dropout voltages and very low ground current. Designed for high current loads, these devices also find applications in lower current, extremely low dropout-critical systems, where their tiny dropout voltage and ground current values are important attributes. The MIC29150/29300/29500/29750 are fully protected against overcurrent faults, reversed input polarity, reversed lead insertion, overtemperature operation, and positive and negative trans [ ... ]

MIC29502BU PDF Datasheet Download