# TPNTJD1155LT1G

**TECH PUBLIC** · Power Distribution Switches · SOT-363

TPNTJD1155LT1G from TECH PUBLIC, in a SOT-363. 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 | S1 | power_in | Source of level-shift MOSFET Q1, connected to ground (GND) in the typical application circuit. |
| 2 | D2 | power_out | Drain of P-channel load switch MOSFET Q2, tied with pin 3 and used as the switched output (VOUT) with continuous load current up to 1.3 A. |
| 3 | D2 | power_out | Drain of P-channel load switch MOSFET Q2, tied with pin 2 and used as the switched output (VOUT) with pulsed load current up to 3.9 A. |
| 4 | S2 | power_in | Source of load switch MOSFET Q2, connected to the input supply VIN (1.8 to 8.0 V operating range, 8 V maximum). |
| 5 | G1 | input | Gate of level-shift MOSFET Q1, the ON/OFF control input (1.5 to 8.0 V range, ESD protected to 2 kV HBM). |
| 6 | G2/D1 | passive | Common node of Q2 gate and Q1 drain, pulled up to VIN through resistor R1 (typically 10 kΩ to 1 MΩ) in the application circuit. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | TECH PUBLIC |
| Package | SOT-363 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `TPNTJD1155LT1G`
- Footprint: `Package_TO_SOT_SMD:SOT-363_SC-70-6`
- 3D model: SOT-363 (KiCad packages3D, STEP)
- 3D model files: `tpntjd1155lt1g-etched.step` / `tpntjd1155lt1g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tpntjd1155lt1g.step` / `tpntjd1155lt1g.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [TECH PUBLIC datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589837506558013440) (5 pp, sha256 `cc204943a2e494c2`, retrieved 2026-10-09, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-sonnet-5-5` (vision), consensus `claude-opus-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/tpntjd1155lt1g-datasheet.pdf)