component

NCP1351BDR2G

Public Made by Adom

by adom

onsemi AC-DC Controllers and Regulators, SOIC-8. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmicncp1351bdr2g
Overview Files Discover Packages Releases Dependencies Issues Breadcrumbs Pull Requests Activity
main
Download ZIP Propose a change
Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs ncp1351bdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
ncp1351bdr2g-etched.fit.json ncp1351bdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ncp1351bdr2g-etched.glb ncp1351bdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ncp1351bdr2g-etched.step ncp1351bdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
ncp1351bdr2g.glb Publish 0.1.0 · Ray
ncp1351bdr2g.kicad_mod Publish 0.1.0 · Ray
ncp1351bdr2g.kicad_sym Publish 0.1.0 · Ray
ncp1351bdr2g.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
ncp1351bdr2g.step Publish 0.1.0 · Ray
package.json Publish 0.2.0 · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json ncp1351bdr2g: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md ncp1351bdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray

NCP1351BDR2G

onsemi · AC-DC Controllers and Regulators · SOIC-8

NCP1351BDR2G from onsemi, in a SOIC-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 FB input Feedback input. Sinking current out of this pin (typically via an optocoupler collector) reduces the switching frequency by extending the off time. Internally biased through a 40 uA pull-up from VDD.
2 Ct passive Oscillator frequency timing pin. An external capacitor to GND sets the maximum switching frequency (fixed T_ON) obtained at no feedback current.
3 CS input Current sense input. Senses the primary MOSFET current via a sense resistor using the negative-sensing technique, with a programmable peak-voltage threshold.
4 GND power_in Device ground / analog return for all internal circuitry.
5 DRV output Gate driver output. Delivers driving pulses directly to the external power MOSFET gate.
6 VCC power_in Supply input for the controller. Accepts up to 28 V with an internal clamp/UVLO management block (V_CCSTOP monitored).
7 LATCH input Latch-off input. Driving a voltage above V_LATCH on this pin fully latches off the controller (dedicated OTP/OVP input).
8 TIMER passive Fault timer capacitor. An external capacitor sets the fault-validation timeout during which feedback activity/overload is monitored before shutdown or auto-recovery is triggered.

Key specifications

Parameter Value
Manufacturer onsemi
Package SOIC-8
Category PMIC
Pins 8

Ordering variants

Same part, different packaging or reel option.

  • NCP1351BDR2G
  • NCP1351BDR2GPG

CAD (KiCad official)

  • Symbol: NCP1351BDR2G
  • Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
  • 3D model: SOIC-8 (KiCad packages3D, STEP)
  • 3D model files: ncp1351bdr2g-etched.step / ncp1351bdr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncp1351bdr2g.step / ncp1351bdr2g.glb are the bare package body.

3D model downloads

Two STEP files. Same geometry, different body top:

File Size Use it when
ncp1351bdr2g.step 122 KB You want the bare part, or you mark your own boards.
ncp1351bdr2g-etched.step 2.5 MB You want the part with NCP1351BDR2G already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 616 faces against 147 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

  • Datasheet: onsemi datasheet (30 pp, sha256 96cd46ad00515b08, retrieved 2026-08-17, tier: manufacturer)
  • 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