# LMP8646MKX

**Texas Instruments** · Current Sense Amplifiers · TSOT-23-6

LMP8646MKX from Texas Instruments, in a TSOT-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 | VOUT | output | Single-ended output voltage pin of the current limiter, and the output is buffered to provide low output impedance. |
| 2 | V- | power_in | Negative supply voltage pin that should be connected to ground. |
| 3 | +IN | input | Positive input of the sensed signal. |
| 4 | -IN | input | Negative input of the sensed signal. |
| 5 | RG | passive | External gain resistor that sets the gain; an external capacitance (CG) may be added in parallel with RG to limit the bandwidth. |
| 6 | V+ | power_in | Positive supply voltage pin. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | TSOT-23-6 |
| Category | Amplifiers/Comparators |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `LMP8646MKX`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-6`
- 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `lmp8646mkx-etched.step` / `lmp8646mkx-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lmp8646mkx.step` / `lmp8646mkx.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/lmp8646) (32 pp, sha256 `566ef374587821e3`, retrieved 2026-10-11, 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/lmp8646mkx-datasheet.pdf)