# TPS2553DBVT-1

**Texas Instruments** · Power Distribution Switches · SOT-23-6

TPS2553DBVT-1 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 | IN | power_in | Input voltage; connect 0.1 µF or greater ceramic capacitor from IN to GND as close to the IC as possible. |
| 2 | GND | power_in | Ground connection; connect externally to PowerPAD for proper heat-sinking. |
| 3 | EN | input | Enable input; logic high turns on power switch for TPS2553. |
| 4 | FAULT | tri_state | Active-low open-drain output asserted during overcurrent, overtemperature, or reverse-voltage conditions. |
| 5 | ILIM | output | External resistor used to set current-limit threshold; recommended 15 kΩ ≤ RILIM ≤ 232 kΩ. |
| 6 | OUT | power_out | Power-switch output. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `TPS2553DBVT-1`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `tps2553dbvt-1-etched.step` / `tps2553dbvt-1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps2553dbvt-1.step` / `tps2553dbvt-1.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/tps2552-1) (44 pp, sha256 `88e453700cea2b26`, retrieved 2026-10-03, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/tps2553dbvt-1-datasheet.pdf)