LP5907MFX-3.3/NOPB

LP5907MFX-3.3/NOPB is the tape-and-reel SOT-23-5 ordering code for the Texas Instruments LP5907 low-noise LDO in its fixed 3.3 V version, listed as ACTIVE. Its verified figures: input range of 2.2 V to 5.5 V, output current up to 250 mA, output noise of 6.5 µVRMS typical at a 250 mA load over a 10 Hz to 100 kHz bandwidth (10 µVRMS typical at 1 mA), PSRR of 82 dB typical at 1 kHz and a 20 mA load, output tolerance of ±2 %, quiescent current of 12 µA typical (VEN of 1.2 V, no load), and dropout of 120 mV typical. The selection point is a clean 3.3 V rail for RF and precision analog blocks without a noise-bypass capacitor — the LP5907 reaches its noise figure with only 1 µF ceramic input and output capacitors and allows remote output-capacitor placement, which eases layout around sensitive front ends. Selection advice: the MFX code is the SOT-23 package on a 3,000-piece reel and the /NOPB suffix is the lead-free finish; the family spans fixed outputs from 1.2 V to 4.5 V, so match the -3.3 in the code to your rail rather than to the family name. Parameters verified against the TI LP5907 datasheet SNVS798 (§5.5 electrical characteristics, with each figure’s test conditions) and the TI product page.