# LM3485Q1MM

**Texas Instruments** · DC-DC Converters · VSSOP-8-0.65mm

LM3485Q1MM from Texas Instruments, in a VSSOP-8-0.65mm. 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 | ISENSE | input | Current sense input that should be connected to the drain node of the external PFET; ISENSE voltage is rated −1.0 V to 36 V (absolute maximum). |
| 2 | GND | power_in | Signal ground for the controller. |
| 3 | NC | unconnected | No connection. |
| 4 | FB | input | Feedback input; connect to a resistor voltage divider between the output and GND for an adjustable output voltage, with FB voltage rated −0.3 V to 5 V (absolute maximum). |
| 5 | ADJ | input | Current limit threshold adjustment pin tied to an internal 5.5-µA current source; a resistor from this pin to the input supply sets the threshold, and ADJ voltage is rated −0.3 V to 36 V (absolute maximum). |
| 6 | PWR GND | power_in | Power ground for the external PFET gate driver. |
| 7 | PGATE | output | Gate drive output for the external PFET, swinging between VIN and VIN-5 V, with PGATE voltage rated −0.3 V to 36 V (absolute maximum). |
| 8 | VIN | power_in | Power supply input pin; recommended supply voltage is 4.5 V to 35 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | VSSOP-8-0.65mm |
| Category | Power Management (PMIC) |
| Pins | 8 |

## CAD (KiCad official)

- Symbol: `LM3485Q1MM`
- Footprint: `Package_SO:VSSOP-8_2.3x2mm_P0.5mm`
- 3D model: VSSOP-8-0.65mm (KiCad packages3D, STEP)
- 3D model files: `lm3485q1mm-etched.step` / `lm3485q1mm-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm3485q1mm.step` / `lm3485q1mm.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/lm3485-q1) (29 pp, sha256 `47736946d0201f2b`, 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/lm3485q1mm-datasheet.pdf)