# LM25069PMMX-1

**Texas Instruments** · Surge Suppressors · VSSOP-10-0.5mm

LM25069PMMX-1 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 that occur when the load current is switched off. |
| 3 | UVLO/EN | input | Under-voltage lockout input that sets the turn-on threshold through an external divider, with an enable threshold of 1.17V, a 20 µA internal hysteresis current source, and optional remote shutdown use. |
| 4 | OVLO | input | Over-voltage lockout input that sets the turn-off threshold through an external divider, with a disable threshold of 1.16V and a 20 µA internal hysteresis current source. |
| 5 | GND | power_in | Circuit ground. |
| 6 | TIMER | passive | Timing capacitor connection that 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, in conjunction with the current sense resistor RS, sets the maximum power dissipation allowed in the external series pass MOSFET. |
| 8 | PGD | output | Open-drain power good indicator that goes 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 connected to the output rail (external MOSFET source), used internally to determine the MOSFET VDS voltage for power limiting and to control the PGD indicator. |
| 10 | GATE | output | Gate drive output connected to the external MOSFET gate, with its voltage limited to 19.5V above ground. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-10-0.5mm |
| Category | TVS/Fuse/Board Level Protection |
| Pins | 10 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| VIN supply voltage | VIN | 2.9 |  | 17 | V |  | 3 |
| PGD off voltage | PGD | 0 |  | 17 | V |  | 3 |
| Junction temperature range | TJ | -40 |  | 85 | °C |  | 3 |
| VIN to GND |  | -0.3 |  | 20 | V |  | 3 |
| SENSE, OUT, PGD to GND |  | -0.3 |  | 20 | V |  | 3 |
| UVLO to GND |  | -0.3 |  | 20 | V |  | 3 |
| OVLO to GND |  | -0.3 |  | 20 | V |  | 3 |
| VIN to SENSE |  | -0.3 |  | 0.3 | V |  | 3 |
| ESD Rating Human Body Model |  |  |  | 2 | kV | Human body model | 3 |
| Storage Temperature |  | -65 |  | 150 | °C |  | 3 |
| Junction Temperature |  |  |  | 150 | °C |  | 3 |
| Lead Temperature |  |  |  | 260 | °C | soldering 4 sec | 3 |
| Input Current, enabled | IIN-EN |  | 1.6 | 2.4 | mA | UVLO = 2V and OVLO = 0.7V, VIN = 14V | 3 |
| Input Current, disabled | IIN-DIS |  | 1 | 1.6 | mA | UVLO = 0.7V or OVLO = 2V | 3 |
| Power On Reset threshold at VIN | POR |  | 2.6 | 2.8 | V | VIN Increasing | 3 |
| UVLO threshold | UVLOTH | 1.154 | 1.17 | 1.183 | V |  | 3 |
| UVLO hysteresis current | UVLOHYS | 15 | 20 | 26 | µA | UVLO = 1V | 3 |
| OVLO threshold | OVLOTH | 1.142 | 1.16 | 1.185 | V |  | 3 |
| OVLO hysteresis current | OVLOHYS | -26 | -20 | -15 | µA | OVLO = 2V | 3 |
| Power limit sense voltage (VIN-SENSE) | PWRLIM-1 | 19 | 25 | 31 | mV | SENSE-OUT = 12V, RPWR = 69.8 kΩ | 4 |
| Gate source current | IGATE | -27 | -20 | -13 | µA | Normal Operation | 4 |
| Gate sink current |  | 1.5 | 2 | 2.7 | mA | UVLO = 1V | 4 |
| Gate pull-down current |  | 160 | 260 | 375 | mA | VIN - SENSE = 150 mV or VIN < POR, VGATE = 5V | 4 |
| Gate output voltage in normal operation | VGATE | 18 | 19.5 | 21 | V | GATE voltage with respect to ground | 4 |
| Current limit threshold voltage | VCL | 45 | 50 | 55 | mV | VIN-SENSE voltage | 4 |
| Circuit breaker threshold voltage | VCB | 75 | 95 | 110 | mV | VIN - SENSE | 4 |
| Circuit breaker response time | tCB |  | 0.19 | 0.36 | µs | VIN - SENSE stepped from 0 mV to 150 mV, time to GATE low, no load | 4 |
| Timer upper threshold | VTMRH | 1.6 | 1.72 | 1.85 | V |  | 4 |
| Insertion time current | ITIMER | -7.5 | -5.5 | -3.5 | µA |  | 4 |
| Sink current, end of insertion time |  | 1.5 | 2 | 2.5 | mA | TIMER pin = 2V | 4 |
| Fault detection current |  | -110 | -80 | -50 | µA |  | 4 |
| Fault sink current |  | 1.6 | 2.5 | 3.4 | µA |  | 4 |
| Power Good threshold measured at SENSE-OUT | PGDTH |  | 1.3 | 1.9 | V | Threshold measured at SENSE-OUT Decreasing | 4 |
| Power Good output low voltage | PGDVOL |  | 15 | 30 | mV | ISINK = 2 mA | 4 |

## CAD (KiCad official)

- Symbol: `LM25069PMMX-1`
- Footprint: `Package_SO:MSOP-10_3x3mm_P0.5mm`
- 3D model: VSSOP-10-0.5mm (KiCad packages3D, STEP)

## Provenance

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

- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/lm25069.pdf) (31 pp, sha256 `ed81a1b21e4ba208`, retrieved 2026-11-05, tier: manufacturer)
- **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-1-datasheet.pdf)