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TPS3820-50DBVR

Public Made by Adom

by adom

Texas Instruments Supervisor and Reset ICs, SOT-23-5. Pinout extracted from the datasheet, KiCad symbol/footprint/3D.

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Generated by kicad-footprint-generator · KiCad file format 20260206
Name Last commit message Last updated
docs tps3820-50dbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
viewers pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
package.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
pads.json pin 1: carry the footprint's marker into the .lbr, the viewer and page.json (silk-marker, drawn, top-left) · Ray
page.json tps3820-50dbvr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
README.md tps3820-50dbvr: laser-etched CAD + chip hero (factory 2.0.0 backfill) · Ray
tps3820-50dbvr-etched.fit.json tps3820-50dbvr: re-etch, flat white mark read from pin 1 (service-occt 1.4.0) + chip hero · Ray
tps3820-50dbvr-etched.glb tps3820-50dbvr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
tps3820-50dbvr-etched.step tps3820-50dbvr: white body in tscircuit (pre-1.8 etch structure under an assembly instance); Ray 2026-10-19: black IC b… · Ray
tps3820-50dbvr.glb Publish 0.1.0 · Ray
tps3820-50dbvr.kicad_mod Publish 0.1.0 · Ray
tps3820-50dbvr.kicad_sym Publish 0.1.0 · Ray
tps3820-50dbvr.lbr rebuild the library on adom-lbr 2.32.0. The published copy was built by 2.18.0, which imported every KiCad roundrect an… · Ray
tps3820-50dbvr.step Publish 0.1.0 · Ray

TPS3820-50DBVR

Texas Instruments · Supervisor and Reset ICs · SOT-23-5

TPS3820-50DBVR from Texas Instruments, in a SOT-23-5. 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 RESET output Active-low reset output, push-pull. Driven low while VDD is below the 4.55 V threshold (VIT-) and held low for the reset delay period (typ 200 ms) after VDD recovers, or during a manual/watchdog reset. VOL = 0.4 V max at IOL = 3 mA; VOH = VDD - 1.5 V at IOH = -120 uA.
2 GND power_in Ground reference for the device.
3 MR input Manual reset input, active low. Pulling MR low forces RESET low; RESET stays low as long as MR is low and for the reset delay after MR returns high. Internal ~52 kOhm pull-up to VDD; leave open or tie to VDD if unused. VIL <= 0.3 x VDD, VIH >= 0.7 x VDD.
4 WDI input Watchdog input. If WDI stays high or low longer than the watchdog timeout (typ 200 ms for TPS3820) a reset is triggered; a rising or falling edge on WDI clears the timer. Tie to high impedance if unused to avoid spurious resets. VIL <= 0.3 x VDD, VIH >= 0.7 x VDD.
5 VDD power_in Supply input and monitored voltage. Operating range 1.1 V to 5.5 V (absolute max 6 V); monitored against the fixed 4.55 V negative-going threshold for the -50 variant. Bypass with a 0.1 uF ceramic near the pin.

Key specifications

Parameter Value
Manufacturer Texas Instruments
Package SOT-23-5
Category PMIC
Pins 5

Ordering variants

Same part, different packaging or reel option.

  • TPS3820-50DBVR
  • TPS3820-50DBVRDBVT

CAD (KiCad official)

  • Symbol: TPS3820-50DBVR
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT-23-5 (KiCad packages3D, STEP)
  • 3D model files: tps3820-50dbvr-etched.step / tps3820-50dbvr-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); tps3820-50dbvr.step / tps3820-50dbvr.glb are the bare package body.

Provenance

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

  • Datasheet: Texas Instruments datasheet (35 pp, sha256 f0ddd0a85e54c699, 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