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dk501
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Shenzhen DongKe Semicon AC-DC Controllers and Regulators, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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markdownDK501
Shenzhen DongKe Semicon · AC-DC Controllers and Regulators · SOP-8
DK501 from Shenzhen DongKe Semicon, in a SOP-8. 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 | TC | passive | Thermal/connection pin. Per datasheet, tied to GND. Provides thermal conduction path. |
| 2 | GND | power_in | Internal ground reference pin. Reference point for all sampled/detected signals inside the IC. |
| 3 | FB | input | Feedback voltage sense pin. Regulates output by comparing voltage between pin 2 (GND) and pin 3 (FB) against the internal 2.5V reference. Requires an external 102-103 (1nF-10nF) smoothing capacitor to filter the signal. |
| 4 | VCC | power_in | IC supply pin. Uses patented self-powered technology; requires an external 22uF/47uF low-ESR high-frequency capacitor for energy storage placed close between pin 4 and pin 2. Operating VCC ≈ 4.7V, startup threshold 4.95V, restart 3.4V, protection 6.3V. |
| 5 | OC | power_out | Open-collector/drain output of the integrated 700V high-voltage power switching MOSFET (drain node) and current-sense circuit. Also serves as a thermal-conduction pin; enlarge PCB copper area for heat dissipation. Peak current 600 mA typ. |
| 6 | OC | power_out | Open-collector/drain output of the integrated 700V high-voltage power switching MOSFET (drain node). Tied together with pins 5, 7, and 8 for thermal dissipation. |
| 7 | OC | power_out | Open-collector/drain output of the integrated 700V high-voltage power switching MOSFET (drain node). Tied together with pins 5, 6, and 8 for thermal dissipation. |
| 8 | OC | power_out | Open-collector/drain output of the integrated 700V high-voltage power switching MOSFET (drain node). Tied together with pins 5, 6, and 7 for thermal dissipation. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen DongKe Semicon |
| Package | SOP-8 |
| Category | PMIC |
| Pins | 8 |
Ordering variants
DK501DK501S
CAD (KiCad official)
- Symbol:
DK501 - Footprint:
Package_SO:SOIC-8_3.9x4.9mm_P1.27mm - 3D model: SOP-8 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Shenzhen DongKe Semicon datasheet (None pp, sha256
d6c13d2c6381bb42, retrieved 2026-08-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).