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TLVH431QDBZT

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Texas Instruments Voltage Reference, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)tlvh431qdbztfactory-2.0.0extractor-text

Verified TLVH431QDBZT

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: TLVH431QDBZT · SOT-23-3 · 3 pins
  • ✓copper: 3 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 58-page datasheet
  • ✓distributor: lcsc C2157061, digikey 296-32438-2-ND, mouser 595-TLVH431QDBZT
  • ✓family: SOT-23-3
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-1n2hbpey/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✓ tlvh431qdbzt.kicad_sym✓ tlvh431qdbzt.kicad_mod✓ tlvh431qdbzt.step
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Contents

README

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TLVH431QDBZT

Texas Instruments · Voltage Reference · SOT-23-3

TLVH431QDBZT from Texas Instruments, in a SOT-23-3. 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 REF input Threshold input referenced to the common anode; it sets the output voltage, with VREF of 1.24V (typical) fixing the regulation point.
2 CATHODE bidirectional Shunt current/voltage terminal, which carries the regulated cathode current (0.1 mA to 70 mA continuous, per the recommended operating conditions).
3 ANODE power_in Common pin, normally connected to ground, and the reference for the cathode voltage and absolute maximum ratings.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-3
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 1.222 1.24 1.258 V VKA = VREF, IK = 10mA, TA = 25°C 6
Reference voltage over full temperature range (Q grade) VREF 1.194 1.286 V VKA = VREF, IK = 10mA, TA = full range, See Figure 6-1 6
VREF deviation over full temperature range (Q grade) VREF(dev) 11 31 mV VKA = VREF, IK = 10mA, See Figure 6-1, full range -40°C to +125°C 6
Ratio of VREF change to cathode voltage change VREF/VKA -1.5 -2.7 mV/V IK = 10mA, VK = VREF to 18V, See Figure 6-2 6
Reference terminal current Iref 0.1 0.5 μA IK = 10mA, R1 = 10kΩ, R2 = open, See Figure 6-2 6
Iref deviation over full temperature range (Q grade) Iref(dev) 0.15 0.5 μA IK = 10mA, R1 = 10kΩ, R2 = open, See Figure 6-2, full range 6
Minimum cathode current for regulation IK(min) 60 100 μA VKA = VREF, See Figure 6-1 6
Off-state cathode current IK(off) 0.02 0.1 μA VREF = 0, VKA = 18V, See Figure 6-3 6
Dynamic impedance /zKA/ 0.25 0.4 Ω VKA = VREF, f ≤ 1kHz, IK = 0.1mA to 70mA, See Figure 6-1 6
Cathode voltage (absolute maximum) VKA 20 V Voltage with respect to anode 5
Cathode current (absolute maximum) IK -25 80 mA 5
Reference current (absolute maximum) Iref -0.05 3 mA 5
Operating virtual junction temperature (absolute maximum) TJ 150 °C 5
Storage temperature (absolute maximum) Tstg -65 150 °C 5
Cathode voltage (recommended operating) VKA 18 V Minimum is VREF (not numeric) 5
Cathode current continuous (recommended operating) IK 0.1 70 mA Continuous 5
Operating free-air temperature (Q grade) TA -40 125 °C TLVH43x_Q 5
Junction-to-ambient thermal resistance (DBZ) RθJA 206 °C/W DBZ (SOT-23, 3 pins) 5
Junction-to-case (top) thermal resistance (DBZ) RθJC(top) 76 °C/W DBZ (SOT-23, 3 pins) 5

CAD (KiCad official)

  • Symbol: TLVH431QDBZT
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: tlvh431qdbzt-etched.step / tlvh431qdbzt-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tlvh431qdbzt.step / tlvh431qdbzt.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (58 pp, sha256 e30d628cb6475d48, 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