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Name	Last commit message	Last updated
docs	ncv431bvdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
viewers	ncv431bvdr2g: viewers · Ray	28d ago
ncv431bvdr2g-etched.fit.json	ncv431bvdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
ncv431bvdr2g-etched.glb	ncv431bvdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
ncv431bvdr2g-etched.step	ncv431bvdr2g: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray	5d ago
ncv431bvdr2g.glb	Publish 0.1.0 · Ray	28d ago
ncv431bvdr2g.kicad_mod	Publish 0.1.0 · Ray	28d ago
ncv431bvdr2g.kicad_sym	Publish 0.1.0 · Ray	28d ago
ncv431bvdr2g.lbr	Publish 0.1.0 · Ray	28d ago
ncv431bvdr2g.step	Publish 0.1.0 · Ray	28d ago
package.json	Publish 0.1.0 · Ray	28d ago
page.json	ncv431bvdr2g: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray	1d ago
README.md	ncv431bvdr2g: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray	19d ago

NCV431BVDR2G

onsemi · Voltage Reference · SOIC-8

NCV431BVDR2G 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	CATHODE	passive	Cathode (K) of the shunt regulator. Regulated node - sinks 1.0 mA to 100 mA when VKA reaches the programmed value. Absolute max VKA = 37 V; continuous IK rated −100 to +150 mA.
2	ANODE	passive	Anode (A) of the shunt regulator (return / ground reference). Electrically common to the die-attach flag together with pins 3, 6 and 7; tie all four to the board's low-side/ground plane to realize the enhanced power-dissipation rating of the modified SOIC-8.
3	ANODE	passive	Anode / die-attach-flag connection. Electrically common with pins 2, 6 and 7 (Anode). Bond to the anode/ground copper for thermal transfer.
4	NC	unconnected	No internal connection. Leave floating or tie to Anode; do not use for signal routing.
5	NC	unconnected	No internal connection. Leave floating or tie to Anode; do not use for signal routing.
6	ANODE	passive	Anode / die-attach-flag connection. Electrically common with pins 2, 3 and 7 (Anode). Bond to the anode/ground copper for thermal transfer.
7	ANODE	passive	Anode (A) of the shunt regulator. Electrically common with pins 2, 3 and 6 via the die-attach flag; the four anode pins together form the low-side/return terminal.
8	REF	input	Reference input (R). Internal error amplifier compares this pin against the 2.495 V internal bandgap; drive from a resistor divider from Cathode to program VKA = (1 + R1/R2)·Vref. Iref = 1.1 µA typ (2.0 µA max @ 25 °C); Iref rated −0.05 to +10 mA.

Key specifications

Parameter	Value
Manufacturer	onsemi
Package	SOIC-8
Category	Power Management (PMIC)
Pins	8

Ordering variants

Same part, different packaging or reel option.

NCV431BVDR2G
NCV431BVDR2GTL431BVDR2G
NCV431BVDR2GTL431BVDG
NCV431BVDMR2G
NCV431BVDR2GTL431BVDMR2G
NCV431BVDR2GTL431BVPG
NCV431BVDR2GTL431BVLPG
NCV431BVDR2GTL431BVLPRAG

CAD (KiCad official)

Symbol: NCV431BVDR2G
Footprint: Package_SO:SOIC-8_3.9x4.9mm_P1.27mm
3D model: SOIC-8 (KiCad packages3D, STEP)
3D model files: ncv431bvdr2g-etched.step / ncv431bvdr2g-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); ncv431bvdr2g.step / ncv431bvdr2g.glb are the bare package body.

Provenance

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

Datasheet: onsemi datasheet (None pp, sha256 c82bb95655b732ca, retrieved 2026-08-17, tier: lcsc)
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