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TLVH431BQDBVRQ1

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by Ray

Texas Instruments Voltage Reference, SOT-23-5. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)tlvh431bqdbvrq1
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Contents

README

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TLVH431BQDBVRQ1

Texas Instruments · Voltage Reference · SOT-23-5

TLVH431BQDBVRQ1 from Texas Instruments, in a SOT-23-5. 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 (feedback) input. Internal error amplifier compares this pin against the 1.24 V bandgap reference; connect to the tap of an external R1/R2 divider from CATHODE to ANODE to program the regulated cathode voltage VKA = VREF x (1 + R1/R2) + Iref x R1. Input bias current Iref ~ 0.1 µA typical.
2 ANODE passive Anode terminal - the low-side (ground-side) terminal of the shunt regulator. All voltages in the datasheet (VKA, absolute-maximum ratings) are referenced to this pin.
3 CATHODE passive Cathode terminal - the high-side terminal of the shunt regulator. VKA operating range VREF (1.24 V) to 18 V; continuous cathode current 0.1 mA to 70 mA (absolute-max 80 mA). Behaves as a programmable shunt: draws current to hold VKA at the programmed voltage once REF reaches 1.24 V.
4 NC unconnected No internal connection. Leave floating or tie to ANODE per board convention; the TLVH431 is a 3-terminal device and the DBV (SOT-23-5) package exposes two unused pads.
5 NC unconnected No internal connection. Leave floating or tie to ANODE per board convention; the TLVH431 is a 3-terminal device and the DBV (SOT-23-5) package exposes two unused pads.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category Power Management (PMIC)
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TLVH431BQDBVRQ1
  • TLVH431BQDBVRQ1DBZR
  • TLVH431BQDBVRQ1DBZRQ1

CAD (KiCad official)

  • Symbol: TLVH431BQDBVRQ1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (None pp, sha256 29341c7b849a14b7, 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