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Contents

README

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TPS3809I50DBVR

Texas Instruments · Supervisor And Reset ICs · SOT-23

TPS3809I50DBVR from Texas Instruments, in a SOT-23. 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 GND power_in Ground connection requiring low-impedance path to system ground.
2 RESET output Active-low reset output; asserts when VDD falls below 4.55 V threshold (TPS3809I50), deasserts with 200 ms typical delay when VDD rises above threshold; push-pull stage.
3 VDD power_in Supply voltage input (2 to 6 V recommended operating range); 0.1-µF ceramic bypass capacitor to ground recommended for threshold voltage stability.

Key specifications

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

CAD (KiCad official)

  • Symbol: TPS3809I50DBVR
  • Footprint: Package_TO_SOT_SMD:SOT-23
  • 3D model: SOT-23 (KiCad packages3D, STEP)
  • 3D model files: tps3809i50dbvr-etched.step / tps3809i50dbvr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps3809i50dbvr.step / tps3809i50dbvr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (17 pp, sha256 6cdb454c698a8ee8, 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