component
TLVH431AQDBZT
Public Unreviewedby Ray
Texas Instruments Voltage Reference, SOT-23-3. Datasheet-verified pinout, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTLVH431AQDBZT
Texas Instruments · Voltage Reference · SOT-23-3
TLVH431AQDBZT from Texas Instruments, in a SOT-23-3. 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. High-impedance threshold pin referenced to the ANODE (common). The internal error amplifier regulates so that V(REF−ANODE) equals the internal 1.24V bandgap reference; connected to the resistor divider between CATHODE and ANODE to program the output voltage. Reference terminal current is typically 0.1µA (max 0.5µA). |
| 2 | CATHODE | bidirectional | Shunt cathode terminal (K). Sinks current from the load/pull-up resistor to regulate VKA between VREF (1.24V) and 18V. Recommended continuous cathode current 0.1mA to 70mA; absolute maximum cathode voltage 20V, cathode current −25mA to +80mA. |
| 3 | ANODE | power_in | Common/ground terminal (A). Reference return for both the CATHODE and REF pins; normally tied to circuit ground in a standard shunt-regulator configuration. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-3 |
| Category | Power Management (PMIC) |
| Pins | 3 |
Ordering variants
Same part, different packaging or reel option.
TLVH431AQDBZTTLVH431AQDBZTDBZRTLVH431AQDBZTDBVTLVH431AQDBZTDBVTTLVH431AQDBZTDBVRTLVH431AQDBZTDCKTLVH431AQDBZTDCKRTLVH431AQDBZTDCKTTLVH431AQDBZTLPTLVH431AQDBZTLPRTLVH431AQDBZTLPMTLVH431AQDBZTPKTLVH431AQDBZTPKG
CAD (KiCad official)
- Symbol:
TLVH431AQDBZT - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (None pp, sha256
b1f3d940ad62cc34, retrieved 2026-08-17, tier: lcsc) - Datasheet language: Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- 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).