# LM25069PMMX-2

**Texas Instruments** · Surge Protection Devices (SPDs) · VSSOP-10-0.5mm

LM25069PMMX-2 from Texas Instruments, in a VSSOP-10-0.5mm. 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 | SENSE | input | Current sense input: the voltage across the current sense resistor (RS) is measured from VIN to this pin, and if it reaches 50mV the load current is limited and the fault timer activates. |
| 2 | VIN | power_in | Positive supply input; a small ceramic bypass capacitor close to this pin is recommended to suppress transients when the load current is switched off. |
| 3 | UVLO/EN | input | Under-voltage lockout and enable input: an external resistor divider from the system input sets the turn-on threshold, an internal 20 µA source gives hysteresis, the enable threshold is 1.17V, and the pin can be used for remote shutdown. |
| 4 | OVLO | input | Over-voltage lockout input: an external resistor divider from the system input sets the turn-off threshold, an internal 20 µA source gives hysteresis, and the disable threshold at the pin is 1.16V. |
| 5 | GND | power_in | Circuit ground. |
| 6 | TIMER | passive | Timing capacitor pin: the external capacitor sets the insertion time delay and the fault timeout period, and also sets the restart timing of the LM25069-2. |
| 7 | PWR | input | Power limit set: an external resistor on this pin, together with the current sense resistor (RS), sets the maximum power dissipation allowed in the external series pass MOSFET. |
| 8 | PGD | output | Power Good open-drain output: it is active (high) when the external MOSFET VDS decreases below 1.3V and switches low when VDS increases above 1.9V. |
| 9 | OUT | input | Output feedback: connect to the output rail (external MOSFET source), used internally to determine MOSFET VDS for power limiting and to control the PGD indicator. |
| 10 | GATE | output | Gate drive output: connect to the external MOSFET gate; this pin's voltage is limited to 19.5V above ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | Circuit Protection |
| Pins | 10 |

## CAD (KiCad official)

- Symbol: `LM25069PMMX-2`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)
- 3D model files: `lm25069pmmx-2-etched.step` / `lm25069pmmx-2-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm25069pmmx-2.step` / `lm25069pmmx-2.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/lm25069) (31 pp, sha256 `ed81a1b21e4ba208`, retrieved 2026-10-08, tier: lcsc)
- **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/lm25069pmmx-2-datasheet.pdf)