Dropout and quiescent — the headroom and always-on budget
The LP2980IM5-3.2/NOPB: Maximum dropout voltage is 0.22 V at 50 mA output. Quiescent current is 95 µA typical, rising to 1.2 mA max supply current. PSRR is 63 dB at 1 kHz.
Protection features include over-current, over-temperature, and short-circuit. The Enable control pin allows the regulator to be shut down externally, pulling the quiescent current to near zero when the rail is not needed.
