component

TP4040C25S3

Public Made by Adom

by adom

TECH PUBLIC Voltage Reference, SOT-23. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

componentpmictp4040c25s3
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Generated by kicad-footprint-generator · KiCad file format 20260206
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docs tp4040c25s3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
viewers tp4040c25s3: viewers · Ray 1mo ago
package.json Publish 0.1.0 · Ray 1mo ago
page.json tp4040c25s3: component.models_3d pose record per STEP (Z-up, seated z=0, pad-centre origin, identity binding) · Ray 18h ago
README.md tp4040c25s3: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray 16d ago
tp4040c25s3-etched.fit.json tp4040c25s3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tp4040c25s3-etched.glb tp4040c25s3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tp4040c25s3-etched.step tp4040c25s3: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray 5d ago
tp4040c25s3.glb Publish 0.1.0 · Ray 1mo ago
tp4040c25s3.kicad_mod Publish 0.1.0 · Ray 1mo ago
tp4040c25s3.kicad_sym Publish 0.1.0 · Ray 1mo ago
tp4040c25s3.lbr Publish 0.1.0 · Ray 1mo ago
tp4040c25s3.step Publish 0.1.0 · Ray 1mo ago

TP4040C25S3

TECH PUBLIC · Voltage Reference · SOT-23

TP4040C25S3 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 CATHODE passive Cathode (+) of the shunt voltage reference. Regulates to VR = 2.5 V (±0.5%) above the anode when biased through an external series resistor RS. Reverse current range IRMIN = 45 µA to IR(max) = 20 mA; forward current limit 10 mA.
2 ANODE passive Anode (−) of the shunt voltage reference; typically tied to circuit ground/return. All voltage values in the datasheet are referenced to this pin.
3 NC unconnected No internal connection to the reference circuit; pin is attached to the die substrate and must be connected to ANODE or left open.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TP4040C25S3

CAD (KiCad official)

  • Symbol: TP4040C25S3
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tp4040c25s3-etched.step / tp4040c25s3-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tp4040c25s3.step / tp4040c25s3.glb are the bare package body.

Provenance

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

  • Datasheet: TECH PUBLIC datasheet (6 pp, sha256 f9ce38855720d349, 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