Dual 300 mA LDO — clean 3.3 V rails for noise-sensitive loads
The MIC5330-SSYML-TR is a dual 300 mA low-dropout linear regulator from Microchip, delivering two fixed 3.3 V outputs from a single 8-MLF package. It is built for applications that need separate analog and digital supply rails without the noise of a switching converter. Each output is rated for 300 mA continuous, with a maximum dropout voltage of 0.2 V at full load — meaning the input rail can sit as low as 3.5 V and still hold regulation.
PSRR across the audio band and quiescent budget
Power-supply rejection ratio holds 70 dB at 1 kHz and rolls to 65 dB at 20 kHz, which keeps ripple from a switching pre-regulator from coupling into sensitive analog stages like audio codecs or sensor front-ends.
Temperature range and protection for industrial use
Built-in over-current and over-temperature protection let it survive a hard short or a stalled fan without latching off permanently — useful when the board is in a sealed enclosure.
Package and footprint — 8-MLF with exposed pad
The supplier device package is 8-MLF (2x2), so the land pattern matches standard 2x2 DFN footprints.