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TL4050B41QDBZR

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by Ray

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

componentpower management (pmic)tl4050b41qdbzr
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Datasheet

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Contents

README

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TL4050B41QDBZR

Texas Instruments · Voltage Reference · SOT-23-3

TL4050B41QDBZR 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 CATHODE passive Cathode (K) terminal of the shunt voltage reference. Sinks the regulated cathode current (IZ) - recommended operating range 60μA to 15mA - while maintaining VZ = 4.096V above the anode. Absolute maximum continuous cathode current is -10mA to +20mA.
2 ANODE passive Anode (A) terminal of the shunt voltage reference; the low-side / ground return of the two-terminal reference. VZ (4.096V) is developed between CATHODE and ANODE.
3 NC unconnected No internal connection. A parasitic Schottky diode exists between pin 2 (Anode) and pin 3, so pin 3 MUST be left floating or tied to pin 2 (Anode). In applications with high EMI or significant high-frequency switching noise, TI recommends tying this pin to Anode.

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.

  • TL4050B41QDBZRIDBZR
  • TL4050B41QDBZRIDBZT
  • TL4050B41QDBZR
  • TL4050B41QDBZT
  • TL4050B41QDBZRIDCKR
  • TL4050B41QDBZRIDCKT
  • TL4050B41QDBZRQDCKR
  • TL4050B41QDBZRQDCKT

CAD (KiCad official)

  • Symbol: TL4050B41QDBZR
  • 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 d043c5224a893bec, 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).

Datasheet PDF