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docs tptlv431bqdbzr: 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
package.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · 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 tptlv431bqdbzr: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray
README.md tptlv431bqdbzr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
tptlv431bqdbzr-etched.fit.json tptlv431bqdbzr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tptlv431bqdbzr-etched.glb tptlv431bqdbzr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tptlv431bqdbzr-etched.step tptlv431bqdbzr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tptlv431bqdbzr.glb Publish 0.1.0 · Ray
tptlv431bqdbzr.kicad_mod Publish 0.1.0 · Ray
tptlv431bqdbzr.kicad_sym Publish 0.1.0 · Ray
tptlv431bqdbzr.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
tptlv431bqdbzr.step Publish 0.1.0 · Ray

TPTLV431BQDBZR

TECH PUBLIC · Voltage Reference · SOT-23

TPTLV431BQDBZR from TECH PUBLIC, in a SOT-23. 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 REF input Reference input pin. Compared internally to the ~1.24V bandgap reference; used with an external resistor divider between CATHODE and ANODE to set the cathode voltage (Vka = Vref*(1+R1/R2) + Iref*R1). Reference input current typ 0.7µA, max 4µA.
2 CATHODE passive Cathode (K) of the shunt regulator. Sinks the regulation current; Vka rated to 18V max, continuous cathode current range 0.1mA to 100mA (abs max -100 to +150mA). Dynamic impedance 0.05Ω typ.
3 ANODE passive Anode (A) of the shunt regulator. All voltages in the datasheet are referenced to this pin; typically tied to the low-side of the feedback divider / ground return.

Key specifications

Parameter Value
Manufacturer TECH PUBLIC
Package SOT-23
Category PMIC
Pins 3

Ordering variants

Same part, different packaging or reel option.

  • TPTLV431BQDBZR

CAD (KiCad official)

  • Symbol: TPTLV431BQDBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tptlv431bqdbzr-etched.step / tptlv431bqdbzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tptlv431bqdbzr.step / tptlv431bqdbzr.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (5 pp, sha256 84693c4980b7f19d, 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