component
kf50bdt-tr
Public Unreviewedby Ray
STMicroelectronics DC-DC Converters, DPAK. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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README
markdownKF50BDT-TR
STMicroelectronics · DC-DC Converters · DPAK
KF50BDT-TR from STMicroelectronics, in a DPAK. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.
Pinout
| Pin | Name | Type | Function |
|---|---|---|---|
| 1 | INPUT | power_in | Unregulated DC input supply. Operating range up to 20 V (absolute max -0.5 to 20 V). For a 5 V output the recommended minimum input voltage is 6 V (allowing 500 mA with a 0.4 V typical dropout). Bypass with a 0.1 µF ceramic capacitor to GND close to the pin. |
| 2 | GND | power_in | Device ground reference. This pin is electrically connected to the exposed DPAK thermal tab, which must be soldered to the PCB ground copper for heat sinking (RthJC = 8 °C/W, RthJA = 100 °C/W). |
| 3 | OUTPUT | power_out | Regulated 5 V output (4.9 V min / 5.1 V max at 25 °C, ±2 % accuracy). Delivers up to 500 mA with internal current limit (~1 A typ.) and thermal shutdown. Requires a minimum 2.2 µF output capacitor (ESR 0.1 to 10 Ω) for loop stability. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | STMicroelectronics |
| Package | DPAK |
| Category | PMIC |
| Pins | 3 |
Ordering variants
KF50BDT-TRKF50BDT-TRBD-TR
CAD (KiCad official)
- Symbol:
KF50BDT-TR - Footprint:
Package_TO_SOT_SMD:TO-252-2 - 3D model: DPAK (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: STMicroelectronics datasheet (None pp, sha256
df5ebcf00a2fe0af, retrieved 2026-08-17, tier: lcsc) - Extractor:
ds2sf(Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate. - CAD: KiCad official libraries (CC-BY-SA 4.0).