Microchip Technology, Inc. Voltage Regulators - Linear, Low Drop Out (LDO) Regulators MIC5259-2.8BD5-TR

The MIC5259-2.8BD5-TR is a low-noise CMOS linear voltage regulator designed for efficient performance in battery-powered and handheld devices. It operates within an input voltage range of 2.7V to 6.0V and provides a regulated output voltage of 2.8V with a maximum output current of 300mA. The device features a low dropout voltage of 300mV at full load and offers high power supply rejection ratio (PSRR) of 70dB at 1kHz, making it suitable for RF applications where clean voltage is critical. With an initial output voltage accuracy of 1.5% and low quiescent current of 105µA, the MIC5259-2.8BD5-TR is optimized for low-power consumption. It includes a TTL-compatible enable pin for shutdown functionality, reducing power consumption to nearly zero when disabled. The regulator is stable with low-ESR ceramic capacitors, which helps minimize board space in compact designs. Additional features include thermal shutdown, current limit protection, and a noise bypass pin for further noise reduction. The part is available in a 5-pin Thin SOT-23 package, making it suitable for various consumer and industrial applications.