component
DK5V45R20P
Public Unreviewedby Ray
Shenzhen DongKe Semicon Synchronous Rectifier Controllers, SOP-8. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
Open in new tab ↗
Loads on click. Unloads when scrolled away or the tab is hidden.
Symbol & Footprint
Schematic Symbol
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
PCB Footprint
Open full view ↗Loads on click. Unloads when scrolled away or the tab is hidden.
Datasheet
Open in new tab ↗Loads on click. Unloads when scrolled away or the tab is hidden.
README
markdownDK5V45R20P
Shenzhen DongKe Semicon · Synchronous Rectifier Controllers · SOP-8
DK5V45R20P 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 | A | passive | Anode terminal, equivalent to the anode of a rectifier diode in application. Internally tied to the source of the integrated 45V NMOS and used as the voltage reference point for all datasheet specs. Pins 1, 2, 3 are internally connected. |
| 2 | A | passive | Anode terminal (paralleled with pins 1 and 3). Connects to the source of the internal 45V/20mΩ NMOS rectifier. |
| 3 | A | passive | Anode terminal (paralleled with pins 1 and 2). Connects to the source of the internal 45V/20mΩ NMOS rectifier. |
| 4 | VCC | power_in | Chip supply pin. Startup threshold VCC_ON = 3.6V typ, UVLO VCC_OFF = 3.1V typ, normal operating range 5-6V. In 5V low-side applications VCC is tied directly to the output positive rail, so no external supply components are required. |
| 5 | K | passive | Cathode terminal, equivalent to the cathode of a rectifier diode. Internally tied to the drain of the 45V/20mΩ NMOS. Pins 5, 6, 7, 8 are internally connected and typically paralleled for current handling and heat dissipation. |
| 6 | K | passive | Cathode terminal (paralleled with pins 5, 7, 8). Connects to the drain of the internal 45V/20mΩ NMOS rectifier. |
| 7 | K | passive | Cathode terminal (paralleled with pins 5, 6, 8). Connects to the drain of the internal 45V/20mΩ NMOS rectifier. |
| 8 | K | passive | Cathode terminal (paralleled with pins 5, 6, 7). Connects to the drain of the internal 45V/20mΩ NMOS rectifier. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Shenzhen DongKe Semicon |
| Package | SOP-8 |
| Category | Power Management (PMIC) |
| Pins | 8 |
CAD (KiCad official)
- Symbol:
DK5V45R20P - 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 (6 pp, sha256
35b68995a142cde4, 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).