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Contents

README

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KP40511SGA

Kiwi Instruments · AC-DC Controllers and Regulators · SOP-8

KP40511SGA from Kiwi Instruments, 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 HV input Drain sense / high-voltage supply pin. Operating range -1 V to 180 V; provides internal VDD regulation (~9 V) from the drain node so no auxiliary winding is required.
2 VDD power_in IC supply pin. Operating range -0.3 V to 12 V; VDD turn-on ~3.8 V, turn-off ~3.5 V, regulated to ~9 V from the HV pin. Requires an external decoupling capacitor.
3 GND power_in IC reference ground. Tie pins 3 and 4 together to system ground.
4 GND power_in IC reference ground. Tie pins 3 and 4 together to system ground.
5 Drain passive Internal power MOSFET drain. Operating range -1 V to 100 V; ID (DC) 5 A typ / 6 A max, ID pulse 20 A typ, Rds(on) 16 mΩ typ (VGS=10 V) for KP40511SG.
6 Drain passive Internal power MOSFET drain. Same node as pins 5, 7, 8.
7 Drain passive Internal power MOSFET drain. Same node as pins 5, 6, 8.
8 Drain passive Internal power MOSFET drain. Same node as pins 5, 6, 7.

Key specifications

Parameter Value
Manufacturer Kiwi Instruments
Package SOP-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • KP40511SGA
  • KP40512SGA

CAD (KiCad official)

  • Symbol: KP40511SGA
  • 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: Kiwi Instruments datasheet (6 pp, sha256 5c675ec93111c771, 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