component
TPS3813K33DBVR
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownTPS3813K33DBVR
Texas Instruments · Supervisor And Reset ICs · SOT-23-6
TPS3813K33DBVR 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 continuously driven and not left floating with minimum pulse width of 50ns. |
| 2 | GND | power_in | Ground reference. |
| 3 | WDT | input | Programmable watchdog delay input for setting watchdog timeout upper boundary by connecting to GND (0.2-0.3s), VDD (2-3s), or external capacitor (155pF-63nF). |
| 4 | VDD | power_in | Supply voltage and supervising input with operating range 2V to 6V, threshold voltage 2.87V to 3V for K33 variant, and hysteresis of 40mV. |
| 5 | WDR | input | Watchdog window ratio input that must be connected to either VDD or GND (not floating) to select the lower window boundary ratio. |
| 6 | RESET | output | Open-drain reset output asserted low when VDD falls below 2.87V to 3V threshold or watchdog timer expires without retrigger; low-level output voltage 0.4V at 2mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
TPS3813K33DBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
tps3813k33dbvr-etched.step/tps3813k33dbvr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps3813k33dbvr.step/tps3813k33dbvr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
fe8ffbb1a81506be, retrieved 2026-09-26, 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, primaryclaude-haiku-4-5-20251001(text), consensusclaude-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).