# TPS62171QDSGRQ1

**Texas Instruments** · DC-DC Converters · WSON-8-EP(2x2)

TPS62171QDSGRQ1 from Texas Instruments, in a WSON-8-EP(2x2). 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 | PGND | power_in | Power ground reference for the power stage output. |
| 2 | VIN | power_in | Supply voltage input with operating range 3V to 17V and absolute maximum rating 20V. |
| 3 | EN | input | Enable input that activates device operation when driven high and disables when driven low. |
| 4 | AGND | power_in | Analog ground reference for the control and feedback circuitry. |
| 5 | FB | input | Feedback input for adjustable output voltage versions requiring external resistive divider, with absolute maximum rating 7V. |
| 6 | VOS | input | Output voltage sense input connected to control loop circuitry with absolute maximum rating 7V. |
| 7 | SW | output | Switch node output connected to internal MOSFET switches and external inductor, voltage range -0.3V to VIN+0.3V. |
| 8 | PG | tri_state | Open-drain power good output indicating VOUT regulation status, high when nominal and low when below nominal, with maximum sink current 10mA and high impedance during shutdown. |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-8-EP(2x2) |
| Category | Power Management (PMIC) |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `TPS62171QDSGRQ1`
- Footprint: `Package_SON:WSON-8-1EP_2x2mm_P0.5mm_EP0.9x1.6mm`
- 3D model: WSON-8-EP(2x2) (KiCad packages3D, STEP)
- 3D model files: `tps62171qdsgrq1-etched.step` / `tps62171qdsgrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps62171qdsgrq1.step` / `tps62171qdsgrq1.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/tps62170-q1) (35 pp, sha256 `3f9b42d19d45696e`, retrieved 2026-10-05, 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-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/tps62171qdsgrq1-datasheet.pdf)