Dual 3.3V rail in a 1.5x1.5 mm WSON
The TLV7113333DDSER is a dual-output low-dropout regulator from Texas Instruments, delivering two independent 3.3 V fixed outputs at 200 mA each from a single 5.5 V max input rail. Housed in a 6-WSON package measuring just 1.5 mm × 1.5 mm, it fits into tight RF front-end or sensor-interface layouts where board space is the binding constraint and a separate analog/digital supply split is needed.
PSRR across the audio band — what the curve tells you
Power-supply rejection ratio starts at 80 dB at 10 Hz and rolls off to 50 dB by 100 kHz. This means the regulator attenuates 100 mV of 10 Hz ripple on the input to roughly 10 µV at the output, but at 100 kHz the same ripple passes through at about 300 µV — still useful for keeping switching-regulator noise off an analog supply, but the upstream filter needs to knock down the high-frequency content before the LDO. Below that, the PSRR figure also degrades as the pass transistor enters the linear region.
Industrial temp range and protection suite
Built-in protection includes over-current, over-temperature, short-circuit, and under-voltage lockout. The UVLO threshold prevents the output from turning on until the input rail is high enough to maintain regulation — avoids brownout glitches on power-up.