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TPS3123J12DBVR
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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TPS3123J12DBVR
Texas Instruments · Supervisor And Reset ICs · SOT-23-5
TPS3123J12DBVR 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 reset delay tD (180 ms typical) after VDD rises above VIT+ = VIT- + VHYS. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | MR | input | Manual reset input: pulling this pin low forces RESET active, and RESET returns to its inactive state after tD once MR is left floating or pulled high. |
| 4 | WDI | input | Watchdog timer input: a reset is triggered if WDI stays high or low longer than the timeout period, with the timer cleared on reset or any WDI rising or falling edge (watchdog timeout 0.8 s min, 1.4 s typ, 2.1 s max). |
| 5 | VDD | power_in | Supply voltage input; the datasheet recommends 0.9 V to 3.3 V operating range (absolute maximum 3.6 V) and 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:
TPS3123J12DBVR - Footprint:
Package_TO_SOT_SMD:SOT-23-5 - 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files:
tps3123j12dbvr-etched.step/tps3123j12dbvr-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);tps3123j12dbvr.step/tps3123j12dbvr.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).
# TPS3123J12DBVR
**Texas Instruments** · Supervisor And Reset ICs · SOT-23-5
TPS3123J12DBVR 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 reset delay tD (180 ms typical) after VDD rises above VIT+ = VIT- + VHYS. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | MR | input | Manual reset input: pulling this pin low forces RESET active, and RESET returns to its inactive state after tD once MR is left floating or pulled high. |
| 4 | WDI | input | Watchdog timer input: a reset is triggered if WDI stays high or low longer than the timeout period, with the timer cleared on reset or any WDI rising or falling edge (watchdog timeout 0.8 s min, 1.4 s typ, 2.1 s max). |
| 5 | VDD | power_in | Supply voltage input; the datasheet recommends 0.9 V to 3.3 V operating range (absolute maximum 3.6 V) and 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: `TPS3123J12DBVR`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `tps3123j12dbvr-etched.step` / `tps3123j12dbvr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps3123j12dbvr.step` / `tps3123j12dbvr.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/tps3123j12dbvr-datasheet.pdf)