# TPS61085PWR

**Texas Instruments** · DC-DC Converters · TSSOP-8

TPS61085PWR from Texas Instruments, in a TSSOP-8. 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 | COMP | bidirectional | Compensation pin for external RC feedback network connected to error amplifier for loop stability optimization. |
| 2 | FB | input | Feedback input from output voltage divider; nominal regulation voltage 1.238 V. |
| 3 | EN | input | Enable/shutdown control input; device enabled when EN ≥ 2 V (logic high), disabled when EN ≤ 0.5 V (logic low). |
| 4 | PGND | power_in | Power ground reference. |
| 5 | SW | output | Switch node output driven by internal 2.0-A MOSFET with 0.13-Ω on-resistance; connection to external boost inductor. |
| 6 | IN | power_in | Input supply pin; recommended operating range 2.3 V to 6 V for boost conversion up to 18.5 V. |
| 7 | FREQ | input | Frequency select input; connect to GND for 650 kHz or to IN for 1.2 MHz switching frequency. |
| 8 | SS | output | Soft-start control output; external capacitor connection to manage startup transient and limit inrush current. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPS61085PWR`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `tps61085pwr-etched.step` / `tps61085pwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps61085pwr.step` / `tps61085pwr.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/lit/ds/symlink/tps61085.pdf) (32 pp, sha256 `1bb954788393db7f`, retrieved 2026-10-03, tier: manufacturer)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/tps61085pwr-datasheet.pdf)