3.1V fixed output LDO for noise-sensitive rails
The 55dB PSRR across 120Hz to 10kHz means the output stays clean when the input bus carries ripple from a switching converter or line-frequency rectifier — relevant for analog front-ends and low-noise bias supplies. Enable control is on-chip, allowing the regulator to be gated by a system supervisor or GPIO without an external pass FET.
The 100 µA maximum supply current is the total the regulator draws from the input, including the pass-element drive — useful for sizing the upstream rail's headroom in always-on subsystems.
Protection and compliance
Over-current and over-temperature protection are built in, so the part survives a sustained short or a thermal event without external clamp diodes. ROHS3 compliant, no exemptions — fits EU and global regulatory requirements for new product introductions.