TPS7A2033PDBVR

TPS7A2033PDBVR is the tape-and-reel SOT-23-5 ordering code for the Texas Instruments TPS7A20 low-dropout regulator, fixed 3.3 V output variant, listed by TI as Active. It accepts a 1.6 V to 6.0 V input, holds output tolerance within ±1.5 % maximum, drops out at 145 mV maximum at a 300 mA load, draws 6.5 µA typical quiescent current, and rejects supply ripple by 95 dB at 1 kHz, with a maximum output current of 300 mA. The selection point is the combination of microamp quiescent current and high PSRR in a five-pin package: battery-backed sensor nodes, metering and always-on rails get clean 3.3 V without the noise a switching pre-regulator would pass through or the battery drain of a hungrier LDO. Selection advice: the TPS7A20 family spans several fixed voltages and the 33 code is the 3.3 V member - match the voltage code in the ordering name to your rail, and budget the 145 mV dropout ceiling when the input rail sags toward 3.45 V at full load. Parameters verified against the TI TPS7A20 datasheet (ordering appendix and electrical characteristics).