# IR44273LTRPBF

**JSMSEMI** · Gate Drivers · SOT-23-5

IR44273LTRPBF from JSMSEMI, 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 | IN | input | Logic input of the gate driver, CMOS Schmitt-trigger and 3.3 V compatible, in-phase with OUT, with VIN range 0 V to VCC. |
| 2 | COM | power_in | Ground reference pin; all voltage ratings are referenced to COM. |
| 3 | OUT | output | Gate drive output (2 A source/2 A sink) swinging 0 V to VCC, tied internally with pin 4. |
| 4 | OUT | output | Gate drive output (2 A source/2 A sink) swinging 0 V to VCC, a second OUT pin shared with pin 3. |
| 5 | VCC | power_in | Supply voltage pin, recommended 5.0 V to 20 V, absolute maximum 25 V, with UVLO thresholds of 4.0 V rising and 3.9 V falling. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | JSMSEMI |
| Package | SOT-23-5 |
| Category | Motor Driver ICs |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `IR44273LTRPBF`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `ir44273ltrpbf-etched.step` / `ir44273ltrpbf-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `ir44273ltrpbf.step` / `ir44273ltrpbf.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [JSMSEMI datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603163110304210944) (7 pp, sha256 `f306334a4b754b79`, retrieved 2026-10-19, 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-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/ir44273ltrpbf-datasheet.pdf)