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TPS3809K33QDBVRQ1

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by Ray

Texas Instruments Supervisor And Reset ICs, SOT-23-3L. Datasheet-verified pinout, KiCad symbol/footprint/3D.

componentpower management (pmic)tps3809k33qdbvrq1
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Datasheet

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Contents

README

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TPS3809K33QDBVRQ1

Texas Instruments · Supervisor And Reset ICs · SOT-23-3L

TPS3809K33QDBVRQ1 from Texas Instruments, in a SOT-23-3L. 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 GND power_in Device ground reference. Connect to system ground (0 V).
2 RESET output Active-low push-pull reset output. Driven low when VDD falls below VIT- (2.93 V typ for K33 option); remains low for td = 200 ms (typ) after VDD returns above the threshold. IOL up to 4 mA at VDD = 6 V; IOH up to -4 mA. Output behavior is undefined for VDD < 1.1 V.
3 VDD power_in Supply voltage and supervising input. Recommended operating range 2 V to 6 V (absolute max 6.5 V). Also the monitored rail: when VDD drops below VIT- (2.93 V typ), RESET is asserted low. Bypass with a 0.1 µF ceramic capacitor placed near the pin for threshold stability.

Key specifications

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

Ordering variants

Same part, different packaging or reel option.

  • TPS3809K33QDBVRQ1

CAD (KiCad official)

  • Symbol: TPS3809K33QDBVRQ1
  • Footprint: Package_TO_SOT_SMD:SOT-23-3
  • 3D model: SOT-23-3L (KiCad packages3D, STEP)

Provenance

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

  • Datasheet: Texas Instruments datasheet (21 pp, sha256 d55bc17b31579792, 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