1 A automotive LDO with 150°C junction rating
The TPS78525BQWDRBRQ1: Single-output positive-voltage LDO rated for 1 A continuous output at a fixed 2.5 V. Maximum dropout is 0.35 V at full load.
PSRR profile and noise rejection
PSRR measures 60 dB at 1 kHz and rolls to 30 dB at 1 MHz. That 30 dB floor at 1 MHz is enough to knock down switching-regulator ripple from a DC-DC converter upstream, but the roll-off means higher-frequency noise (above a few MHz) passes through. If the load is a noise-sensitive analog front-end, pair this LDO with a post-filter or choose a part with higher PSRR at 1 MHz.
Built-in current limit, over-temperature shutdown, and undervoltage lockout (UVLO) protect the load and the regulator. An enable pin allows external on/off control; leave it pulled high for always-on operation. The fixed 2.5 V output needs no external resistor divider — just input and output capacitors per the datasheet guidelines.