# TPS77718DR

**Texas Instruments** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOIC-8

TPS77718DR from Texas Instruments, in a SOIC-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 | GND | power_in | Regulator ground; the datasheet states that EN should be tied to ground if the shutdown feature is not used. |
| 2 | EN | input | Enable input; a TTL high signal shuts down the regulator and reduces quiescent current to 1 µA at TJ = 25°C. |
| 3 | IN | power_in | Input voltage to the regulator (pins 3 and 4 are both IN and must be connected together). |
| 4 | IN | power_in | Input voltage to the regulator (second IN pin, connected in parallel with pin 3). |
| 5 | OUT | power_out | Regulated output voltage; the datasheet requires a minimum 10 µF output capacitor to OUT-GND with ESR between 50 mΩ and 1.5 Ω. |
| 6 | OUT | power_out | Regulated output voltage (second OUT pin, connected in parallel with pin 5). |
| 7 | FB/NC | unconnected | Feedback input for the adjustable version only; for fixed-output options such as the TPS77718 it is no connect. |
| 8 | RESET | output | Open-drain RESET output that signals an undervoltage condition on the regulated output, with a 200 ms delay (TPS777xx RESET option). |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPS77718DR`
- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`
- 3D model: SOIC-8 (KiCad packages3D, STEP)
- 3D model files: `tps77718dr-etched.step` / `tps77718dr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps77718dr.step` / `tps77718dr.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/tps777) (28 pp, sha256 `011757d41db41f42`, retrieved 2026-10-11, 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/tps77718dr-datasheet.pdf)