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TPS3813K33MDBVREP
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Texas Instruments Supervisor And Reset ICs, SOT-23-6. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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TPS3813K33MDBVREP
Texas Instruments · Supervisor And Reset ICs · SOT-23-6
TPS3813K33MDBVREP 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 trigger input whose rising edge must arrive within the configured window (pulse width at least 50 ns) to prevent a reset, with input levels referenced to VDD (VIH at least 0.7 x VDD, VIL at most 0.3 x VDD). |
| 2 | GND | power_in | Ground reference for the device; all voltage values in the datasheet are specified with respect to GND. |
| 3 | WDT | input | Programmable watchdog delay input that is tied to GND, tied to VDD, or connected to an external capacitor between 47 pF and 63 nF to set the upper watchdog window timeout. |
| 4 | VDD | power_in | Supply voltage input (2 V to 6 V) that is also the supervised voltage, with RESET asserted while VDD is below the threshold voltage VIT. |
| 5 | WDR | input | Selectable watchdog window ratio input that is tied to GND or VDD to set the lower boundary of the watchdog window. |
| 6 | RESET | output | Active-low open-drain reset output that is asserted while VDD is below VIT and released about 25 ms (typical delay td) after VDD rises above VIT, with maximum low output current of 5 mA. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
CAD (KiCad official)
- Symbol:
TPS3813K33MDBVREP - Footprint:
Package_TO_SOT_SMD:SOT-23-6 - 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files:
tps3813k33mdbvrep-etched.step/tps3813k33mdbvrep-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps3813k33mdbvrep.step/tps3813k33mdbvrep.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (17 pp, sha256
db376917a8677703, retrieved 2026-10-11, tier: lcsc) - Extractor: parts-factory
2.0.0/extract_pins 0.3, primaryclaude-haiku-5-5(text), consensusclaude-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).
# TPS3813K33MDBVREP
**Texas Instruments** · Supervisor And Reset ICs · SOT-23-6
TPS3813K33MDBVREP 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 trigger input whose rising edge must arrive within the configured window (pulse width at least 50 ns) to prevent a reset, with input levels referenced to VDD (VIH at least 0.7 x VDD, VIL at most 0.3 x VDD). |
| 2 | GND | power_in | Ground reference for the device; all voltage values in the datasheet are specified with respect to GND. |
| 3 | WDT | input | Programmable watchdog delay input that is tied to GND, tied to VDD, or connected to an external capacitor between 47 pF and 63 nF to set the upper watchdog window timeout. |
| 4 | VDD | power_in | Supply voltage input (2 V to 6 V) that is also the supervised voltage, with RESET asserted while VDD is below the threshold voltage VIT. |
| 5 | WDR | input | Selectable watchdog window ratio input that is tied to GND or VDD to set the lower boundary of the watchdog window. |
| 6 | RESET | output | Active-low open-drain reset output that is asserted while VDD is below VIT and released about 25 ms (typical delay td) after VDD rises above VIT, with maximum low output current of 5 mA. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |
## CAD (KiCad official)
- Symbol: `TPS3813K33MDBVREP`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `tps3813k33mdbvrep-etched.step` / `tps3813k33mdbvrep-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps3813k33mdbvrep.step` / `tps3813k33mdbvrep.glb` are the bare package body.
## Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/cn/lit/gpn/tps3813k33-ep) (17 pp, sha256 `db376917a8677703`, retrieved 2026-10-11, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-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](docs/tps3813k33mdbvrep-datasheet.pdf)