STMicroelectronics LD39020DTPU33R, fixed 3.3V output LDO, 200mA, 80dB PSRR at 1kHz, 4-XDFN exposed pad package, -40°C to 125°C, active lifecycle.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Voltage - input | 5.5V |
| Voltage dropout | 0.35V @ 200mA |
| Voltage - output (Min (Fixed)) | 3.3V |
| Output current | 200mA |
| Current - quiescent | 40 µA |
| Operating temperature | -40°C ~ 125°C (TJ) |
| PSRR | 80dB ~ 55dB (1kHz ~ 100kHz) |
| Package | Tape & Reel (TR); Cut Tape (CT) |
| Case | 4-XDFN Exposed Pad |
| Control features | Enable |
| Protection features | Over Current, Over Temperature, Soft Start |
| Number of regulators | 1 |
| Output configuration | Positive |
The LD39020DTPU33R lists 80 dB at 1 kHz, rolling to 55 dB at 100 kHz.
Built-in protection includes over-current, over-temperature, and soft-start.
The part is ROHS3 compliant. Sourcing is through independent distribution; we quote to order against an RFQ.
Design engineers need to verify the regulator supplies exactly 3.3V to power sensitive loads.
Sourcing buyers need to confirm inventory before filling a BOM line to avoid production delays.
Engineers must ensure the component fits the existing PCB layout, especially for space-constrained designs.
Buyers and techs need to know compatible alternatives to avoid redesign or delays when stock is low.
Maintenance techs and design engineers must confirm the part can operate in the intended environment, especially industrial or automotive.
Procurement professionals need to compare pricing across multiple channels to minimize cost per unit for the BOM.