Fixed 3.3V rail with 150mA headroom
The MCP1754ST-3302E/MC is a single-output LDO from Microchip Technology, delivering a fixed 3.3V output at up to 150mA.
PSRR and noise rejection at 1 kHz
Power-supply rejection ratio is 72 dB at 1 kHz. That means ripple on the input at audio frequencies is attenuated by a factor of roughly 4000 — useful for analog front-ends or RF circuits where a clean 3.3V rail is critical.
Quiescent current and protection
Quiescent current is 90 µA typical, with a maximum supply current of 250 µA. On-chip protection includes over-current and over-temperature shutdown — no external clamp diode needed for the output.
Lifecycle and compliance
Listed as Active by Microchip Technology, with RoHS3 compliance.