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TPS3126E18DBVR
Public Made by Adomby adom
Texas Instruments Supervisor And Reset ICs, SOT-23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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TPS3126E18DBVR
Texas Instruments · Supervisor And Reset ICs · SOT-23-5
TPS3126E18DBVR from Texas Instruments, in a SOT-23-5. 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 | RESET | output | Active-low reset output that is driven low when VDD falls below the negative threshold VIT-, and stays low for the delay time tD after VDD rises above VIT+ = VIT- + VHYS. |
| 2 | GND | power_in | Ground reference pin for the supervisor. |
| 3 | RESET | output | Active-high reset output that is driven high when VDD falls below VIT-, and stays high for the delay time tD after VDD rises above VIT+ = VIT- + VHYS; this TPS3126 output is open-drain per the device description. |
| 4 | MR | input | Manual reset input: pulling it to logic low forces RESET active regardless of VDD or watchdog state, and RESET deasserts after tD once MR is left floating or driven high (internal pull-up of about 90 kΩ). |
| 5 | VDD | power_in | Supply voltage input, recommended 0.9 V to 3.3 V (absolute maximum -0.3 V to 3.6 V), with a 0.1 µF ceramic capacitor placed close to this pin. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
CAD (KiCad official)
- Symbol:
TPS3126E18DBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
tps3126e18dbvr-etched.step/tps3126e18dbvr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps3126e18dbvr.step/tps3126e18dbvr.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: Texas Instruments datasheet (26 pp, sha256
a993b2524ea48899, retrieved 2026-10-08, 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 0.3, 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).
# TPS3126E18DBVR
**Texas Instruments** · Supervisor And Reset ICs · SOT-23-5
TPS3126E18DBVR from Texas Instruments, in a SOT-23-5. 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 | RESET | output | Active-low reset output that is driven low when VDD falls below the negative threshold VIT-, and stays low for the delay time tD after VDD rises above VIT+ = VIT- + VHYS. |
| 2 | GND | power_in | Ground reference pin for the supervisor. |
| 3 | RESET | output | Active-high reset output that is driven high when VDD falls below VIT-, and stays high for the delay time tD after VDD rises above VIT+ = VIT- + VHYS; this TPS3126 output is open-drain per the device description. |
| 4 | MR | input | Manual reset input: pulling it to logic low forces RESET active regardless of VDD or watchdog state, and RESET deasserts after tD once MR is left floating or driven high (internal pull-up of about 90 kΩ). |
| 5 | VDD | power_in | Supply voltage input, recommended 0.9 V to 3.3 V (absolute maximum -0.3 V to 3.6 V), with a 0.1 µF ceramic capacitor placed close to this pin. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |
## CAD (KiCad official)
- Symbol: `TPS3126E18DBVR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tps3126e18dbvr-etched.step` / `tps3126e18dbvr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps3126e18dbvr.step` / `tps3126e18dbvr.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/tps3125) (26 pp, sha256 `a993b2524ea48899`, retrieved 2026-10-08, 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 0.3`, 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/tps3126e18dbvr-datasheet.pdf)