STMicroelectronics LD39020DTPU47R, LDO voltage regulator, fixed 4.7V output, 200mA, 0.35V dropout, 80dB~55dB PSRR, -40°C~125°C, 4-XDFN exposed pad, surface mount.
| Parameter | Value |
|---|---|
| Output type | Fixed |
| Mounting | Surface Mount |
| Voltage - input | 5.5V |
| Voltage dropout | 0.35V @ 200mA |
| Voltage - output (Min (Fixed)) | 4.7V |
| 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 |
Quiescent current is 40 µA. The enable pin lets the system shut down the regulator entirely when the rail is not needed.
This part carries an Active product status with ROHS3 compliance.
Buyers need to confirm the fixed 4.7V output matches their design requirements.
Sourcing buyers need to find stock and authorized distributors to place an order.
Design engineers must ensure the low dropout (0.35V max) meets headroom constraints.
Engineers need the 4-DFN 1x1mm package dimensions for PCB layout.
Technicians or buyers need to know if different voltage versions are pin-compatible for substitution.
Procurement buyers require cost and delivery timeline for BOM filling.