# TPS2066TDGNRQ1

**Texas Instruments** · Power Distribution Switches · MSOP-8-EP

TPS2066TDGNRQ1 from Texas Instruments, in a MSOP-8-EP. 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 | Ground reference for the device; all voltages are referenced to GND, and the exposed PowerPAD should be connected to this pin. |
| 2 | IN | power_in | Input voltage supply for the power switches, recommended 2.7 V to 5.5 V, with a 0.01-μF to 0.1-μF ceramic bypass capacitor to GND placed close to the device; the UVLO turns the switch off below approximately 2 V. |
| 3 | EN1 | input | Enable input for power switch IN-OUT1 where logic high turns the switch on; VIH minimum is 2 V and VIL maximum is 0.8 V for 2.7 V ≤ VI(IN) ≤ 5.5 V, with an input voltage range of 0 V to 5.5 V. |
| 4 | EN2 | input | Enable input for power switch IN-OUT2 where logic high turns the switch on; VIH minimum is 2 V and VIL maximum is 0.8 V for 2.7 V ≤ VI(IN) ≤ 5.5 V, with an input voltage range of 0 V to 5.5 V. |
| 5 | OC2 | output | Open-drain overcurrent output for IN-OUT2, active low, asserted after a 4 to 15 ms (typical 8 ms) deglitch on overcurrent or overtemperature, with output low voltage of 0.4 V maximum at 5 mA. |
| 6 | OUT2 | output | Power-switch output for IN-OUT2, with continuous output current rated 0 to 1 A and the switch entering constant-current mode when the overcurrent trip threshold is reached. |
| 7 | OUT1 | output | Power-switch output for IN-OUT1, with continuous output current rated 0 to 1 A and the switch entering constant-current mode when the overcurrent trip threshold is reached. |
| 8 | OC1 | output | Open-drain overcurrent output for IN-OUT1, active low, asserted after a 4 to 15 ms (typical 8 ms) deglitch on overcurrent or overtemperature, with output low voltage of 0.4 V maximum at 5 mA. |
| 9 | PowerPAD | power_in | Exposed thermal pad internally connected to GND that heat-sinks the part to the circuit board traces and should be connected to the GND pin. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `TPS2066TDGNRQ1`
- Footprint: `Package_SO:MSOP-8-1EP_3x3mm_P0.65mm_EP1.5x1.8mm`
- 3D model: MSOP-8-EP (KiCad packages3D, STEP)
- 3D model files: `tps2066tdgnrq1-etched.step` / `tps2066tdgnrq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `tps2066tdgnrq1.step` / `tps2066tdgnrq1.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/tps2066-q1) (25 pp, sha256 `40d36ba01a386d39`, retrieved 2026-10-11, 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-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/tps2066tdgnrq1-datasheet.pdf)