Fixed 2.7V rail for noise-sensitive loads
The TPS7A0527PDBZR is a fixed 2.7V output LDO from TI's TPS7A05 family, delivering 200 mA from a single positive supply rail. Its 3 µA quiescent current suits always-on or battery-powered designs where the regulator's own draw must stay below the system sleep budget.
PSRR flat across 1 kHz to 1 MHz
PSRR holds at 40 dB from 1 kHz through 1 MHz — a wide-band rejection profile that attenuates switching-regulator ripple and high-frequency noise without requiring a post-filter. For a 200 mVpp ripple at 500 kHz, the output sees roughly 2 mVpp after regulation.
Dropout and protection at 200 mA
Maximum dropout is 308 mV at the full 200 mA load — the input rail needs to stay above 3.008 V to maintain regulation. Over-current, over-temperature, and UVLO protection are integrated, so the part survives output shorts and thermal excursions without external clamp diodes.
SOT-23-3 with enable pin
Packaged in a 3-lead SOT-23-3 (TO-236-3, SC-59 equivalent), the TPS7A0527PDBZR mounts on standard surface-mount pads. An enable control pin lets the system power down the regulator, dropping the load current to near-zero during standby.