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Contents

README

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TL4051AIDBZR

Texas Instruments · Voltage Reference · SOT-23-3

TL4051AIDBZR 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 CATHODE output Reference voltage output terminal; cathode current 36 μA (minimum) to 12 mA (maximum); provides 1.212 V nominal reference voltage, adjustable to 1.225-10 V via external feedback resistor divider.
2 ANODE power_in Ground return connection for the internal voltage reference element; completes current path for diode and load.
3 FB input Feedback terminal for adjustable output voltage mode (1.225-10 V via external divider); parasitic Schottky diode connects pin 3 to pin 2, requiring pin 3 be left open or connected to pin 2 when not used for feedback.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-3
Category Power Management (PMIC)
Pins 3

CAD (KiCad official)

  • Symbol: TL4051AIDBZR
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3 (KiCad packages3D, STEP)
  • 3D model files: tl4051aidbzr-etched.step / tl4051aidbzr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tl4051aidbzr.step / tl4051aidbzr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (33 pp, sha256 739b8ac05dcb64a5, retrieved 2026-09-27, 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: parts-factory 2.0.0 / extract_pins 0.2, primary claude-haiku-4-5-20251001 (text), consensus claude-sonnet-4-6 (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