component

TLV431BQLPR

Public Made by Adom

by adom

Texas Instruments Voltage Reference, TO-92-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tlv431bqlprfactory-2.0.0extractor-text

Verified TLV431BQLPR

by Ray · last 5 Nov 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

5 Nov 2026RayPublished by the parts factory: tier mfr, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: TLV431BQLPR · TO-92-3 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 58-page datasheet
  • ✓distributor: lcsc C2872730, digikey 296-TLV431BQLPRTR-ND, mouser 595-TLV431BQLPR
  • ✓family: TO-92_Inline
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-p39uw99v/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓symbol_text: no pin names collide
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ tlv431bqlpr.kicad_sym✓ tlv431bqlpr.kicad_mod✓ tlv431bqlpr.step
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Made with KiCad 10.0 · needs KiCad 10.0 or later to open · KiCad file format 20260206
Name Last commit message Last updated
docs Publish 0.1.0 · Ray 3h ago
viewers tlv431bqlpr: viewers · Ray 3h ago
package.json Publish 0.1.0 · Ray 3h ago
page.json Set visibility: public · Ray 3h ago
README.md Publish 0.1.0 · Ray 3h ago
tlv431bqlpr-etched.glb Publish 0.1.0 · Ray 3h ago
tlv431bqlpr-etched.step tlv431bqlpr: factory component page (tier=mfr) · Ray 3h ago
tlv431bqlpr-hero.glb tlv431bqlpr: hero GLB from the etched model (keeps the MPN mark) · Ray 3h ago
tlv431bqlpr-hero.overlay.json Publish 0.1.0 · Ray 3h ago
tlv431bqlpr.glb Publish 0.1.0 · Ray 3h ago
tlv431bqlpr.kicad_mod Publish 0.1.0 · Ray 3h ago
tlv431bqlpr.kicad_sym Publish 0.1.0 · Ray 3h ago
tlv431bqlpr.lbr Publish 0.1.0 · Ray 3h ago
tlv431bqlpr.step Publish 0.1.0 · Ray 3h ago
verification.json Verified: Published by the parts factory: tier mfr, 3 pins · Ray 3h ago

TLV431BQLPR

Texas Instruments · Voltage Reference · TO-92-3

TLV431BQLPR from Texas Instruments, in a TO-92-3. Pinout and pin descriptions extracted from the manufacturer datasheet (extract_pins, cross-checked by a second model); symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin Name Type Function
1 CATHODE bidirectional Shunt current/voltage input; recommended cathode current is 0.1 mA to 15 mA, and absolute maximum continuous cathode current is -20 mA to 20 mA.
2 ANODE power_in Common pin, normally connected to ground; all cathode voltage ratings are referenced to the anode terminal.
3 REF input Threshold input relative to the common anode, set by the external divider; reference current is limited to -0.05 mA to 3 mA absolute maximum.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package TO-92-3
Category Power Management (PMIC)
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Reference voltage VREF 1.221 1.265 V VKA = VREF, IK=10mA, TA = full range (see Figure 6-1), TLV431BQ 7
Reference voltage VREF 1.234 1.24 1.246 V VKA = VREF, IK=10mA, TA = 25°C 7
VREF deviation over full temperature range VREF(dev) 11 31 mV VKA = VREF, IK = 10mA (see Figure 6-1), TLV431BQ 7
Ratio of VREF change to cathode voltage change -1.5 -2.7 mV/V VKA = VREF to 6V, IK = 10mA (see Figure 6-2) 7
Reference terminal current Iref 0.1 0.5 µA IK = 10mA, R1 = 10kΩ, R2 = open (see Figure 6-2) 7
Iref deviation over full temperature range Iref(dev) 0.15 0.5 µA IK = 10mA, R1 = 10kΩ, R2 = open (see Figure 6-2), TLV431BQ 7
Minimum cathode current for regulation IK(min) 55 100 µA VKA = VREF (see Figure 6-1) 7
Off-state cathode current IK(off) 0.001 0.1 µA VREF = 0, VKA = 6V (see Figure 6-3) 7
Dynamic impedance /zKA/ 0.25 0.4 Ω VKA = VREF, f ≤ 1kHz, IK = 0.1mA to 15mA (see Figure 6-1) 7
Cathode voltage VKA 7 V Voltage with respect to anode terminal 4
Continuous cathode current IK -20 20 mA 4
Reference current Iref -0.05 3 mA 4
Operating virtual junction temperature 150 °C 4
Storage temperature Tstg -65 150 °C 4
Cathode voltage VKA 6 V Minimum is VREF (1.24 V) 4
Cathode current IK 0.1 15 mA 4
Operating free-air temperature TA -40 125 °C TLV431_Q 4
Junction-to-ambient thermal resistance RθJA 140 °C/W LP (TO-92, 3) package 4
Junction-to-case (top) thermal resistance RθJC(top) 55 °C/W LP (TO-92, 3) package 4

CAD (KiCad official)

  • Symbol: TLV431BQLPR
  • Footprint: Package_TO_SOT_THT:TO-92_Inline
  • 3D model: TO-92-3 (KiCad packages3D, STEP)
  • 3D model files: tlv431bqlpr-etched.step / tlv431bqlpr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlv431bqlpr.step / tlv431bqlpr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (58 pp, sha256 6999c7cde8d7d768, retrieved 2026-11-05, tier: manufacturer)
  • Extractor: parts-factory 2.0.0 / extract_pins 0.3, primary claude-haiku-5-5 (text), consensus claude-sonnet-5-5 (agreed), guards: pin_guards 0.1: passed. Pins are checked against the footprint pad set and their cited datasheet pages before publish.
  • CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF