# TPS2111APWR

**Texas Instruments** · Power Distribution Switches · TSSOP-8

TPS2111APWR 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 | D0 | input | TTL- and CMOS-compatible digital input with 1-mA pull-up used with D1 to select multiplexer mode and switching behavior per Truth Table. |
| 2 | D1 | input | TTL- and CMOS-compatible digital input with 1-mA pull-up used with D0 to select multiplexer mode and switching behavior per Truth Table. |
| 3 | VSNS | input | Analog voltage sense input that in auto-switching mode (D0=1, D1=0) connects OUT to IN1 if VSNS > 0.8 V, otherwise to the higher of IN1 and IN2. |
| 4 | ILIM | input | Current limit programming input where resistor RILIM from ILIM to GND sets current limit to 250/RILIM A (TPS2110A) or 500/RILIM A (TPS2111A). |
| 5 | GND | power_in | Power supply ground reference. |
| 6 | IN2 | power_in | Secondary power supply input rated 2.8 V to 5.5 V; switch enabled only when supply above UVLO threshold and internal VDD UVLO satisfied. |
| 7 | OUT | power_out | Power switch output that connects to either IN1 or IN2 based on control logic; rated for up to 1.5 A continuous for TPS2111A. |
| 8 | IN1 | power_in | Primary power supply input rated 2.8 V to 5.5 V; switch enabled only when supply above UVLO threshold and internal VDD UVLO satisfied. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPS2111APWR`
- Footprint: `Package_SO:TSSOP-8_3x3mm_P0.65mm`
- 3D model: TSSOP-8 (KiCad packages3D, STEP)
- 3D model files: `tps2111apwr-etched.step` / `tps2111apwr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps2111apwr.step` / `tps2111apwr.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/tps2111a.pdf) (27 pp, sha256 `e73966128dfca53e`, 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/tps2111apwr-datasheet.pdf)