Texas Instruments TPS71745DSET, linear voltage regulator, fixed 4.5V output, 150mA, positive, single regulator, 6-WFDFN package, surface mount, -40°C to 125°C.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Voltage - input | 6.5V |
| Voltage dropout | 0.3V @ 150mA |
| Voltage - output (Min (Fixed)) | 4.5V |
| Output current | 150mA |
| Current - supply | 100 µA |
| Current - quiescent | 80 µA |
| Operating temperature | -40°C ~ 125°C |
| PSRR | 70dB ~ 45dB (100Hz ~ 1MHz) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 6-WFDFN |
| Control features | Enable |
| Protection features | Over Current, Over Temperature, Reverse Polarity, Under Voltage Lockout (UVLO) |
| Number of regulators | 1 |
| Output configuration | Positive |
PSRR is specified at 70dB at 100Hz, rolling to 45dB at 1MHz.
This LDO packs a full protection suite: over-current, over-temperature, reverse polarity, and under-voltage lockout (UVLO). The enable pin allows the regulator to be gated by a system controller or power-good signal, which is useful in sequenced power-up schemes.
It is ROHS3 compliant.
The TPS71735 is a 3.5V fixed output variant in the same family. The TPS71745DSET is pin-compatible and shares the same package, protection features, and PSRR profile — the only difference is the output voltage. If your design needs 4.5V instead of 3.5V, it is a drop-in swap. For a 3.5V rail, stick with the TPS71735.