STMicroelectronics LDLN025PU275R, LDO voltage regulator, fixed 2.75V output, 250mA, positive, single regulator, PSRR 80dB ~ 60dB (100Hz ~ 100KHz), dropout 0.25V max, 4-XFBGA, -40°C ~ 125°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Voltage - input | 5.5V |
| Voltage dropout | 0.25V @ 250mA |
| Voltage - output (Min (Fixed)) | 2.75V |
| Output current | 250mA |
| Current - supply | 425 µA |
| Current - quiescent | 25 µA |
| Operating temperature | -40°C ~ 125°C (TJ) |
| PSRR | 80dB ~ 60dB (100Hz ~ 100KHz) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 4-XFBGA |
| Control features | Enable |
| Protection features | Over Current, Over Temperature, Short Circuit, Soft Start |
| Number of regulators | 1 |
| Output configuration | Positive |
Quiescent current is 25µA typical, rising to 425µA max under all conditions. That 25µA Iq keeps the part viable for battery-operated or always-on subsystems where every microamp counts.
The 4-XFBGA / 4-FlipChip package is a 4-bump array, no leads. It requires a solder-paste stencil designed for the bump pitch; reflow profile follows standard JEDEC for lead-free (ROHS3).
PSRR is 80dB at 100Hz and 60dB at 100kHz. The 80dB figure handles mains-frequency ripple; the 60dB at 100kHz still attenuates switching-regulator ripple by 1000x.
It comes in a 4-XFBGA package (4-FlipChip) for surface-mount assembly. The supplier device package is listed as 4-FlipChip. Shipping options include Tape & Reel or Cut Tape.