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Contents

README

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TPS3813I50QDBVRQ1

Texas Instruments · Monitors & Reset Circuits · SOT-23-6

TPS3813I50QDBVRQ1 from Texas Instruments, in a SOT-23-6. 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 WDI input Watchdog timer input that must be driven at all times and not left floating.
2 GND power_in Ground.
3 WDT input Programmable watchdog delay input, set by connecting to GND or VDD or by using an external capacitor.
4 VDD power_in Supply voltage and supervising input, recommended operating range 2 V to 6 V (absolute maximum 7 V).
5 WDR input Selectable watchdog window ratio input that must be tied to VDD or GND and not left floating.
6 RESET output Open-drain active-low reset output, asserted when VDD drops below VIT.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-6
Category Power Supply Chip
Pins 6

CAD (KiCad official)

  • Symbol: TPS3813I50QDBVRQ1
  • Footprint: Package_TO_SOT_SMD:SOT-23-6
  • 3D model: SOT-23-6 (KiCad packages3D, STEP)
  • 3D model files: tps3813i50qdbvrq1-etched.step / tps3813i50qdbvrq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps3813i50qdbvrq1.step / tps3813i50qdbvrq1.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (25 pp, sha256 358958089274ca7a, retrieved 2026-10-22, 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 0.3, primary claude-sonnet-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