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DK5V45R20P

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Shenzhen DongKe Semicon Synchronous Rectifier Controllers, SOP-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)dk5v45r20p
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docs dk5v45r20p: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
viewers dk5v45r20p: viewers · Ray 1mo ago
dk5v45r20p-etched.fit.json dk5v45r20p: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
dk5v45r20p-etched.glb dk5v45r20p: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
dk5v45r20p-etched.step dk5v45r20p: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 1mo ago
dk5v45r20p.glb Publish 0.1.0 · Ray 1mo ago
dk5v45r20p.kicad_mod Publish 0.1.0 · Ray 1mo ago
dk5v45r20p.kicad_sym Publish 0.1.0 · Ray 1mo ago
dk5v45r20p.lbr Publish 0.1.0 · Ray 1mo ago
dk5v45r20p.step Publish 0.1.0 · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json dk5v45r20p: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 1mo ago
README.md dk5v45r20p: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 1mo ago

DK5V45R20P

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)
  • 3D model files: dk5v45r20p-etched.step / dk5v45r20p-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); dk5v45r20p.step / dk5v45r20p.glb are the bare package body.

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).

Datasheet PDF