TPS2051ADR

@@ -0,0 +1,50 @@+# TPS2051ADR++**Texas Instruments** · Power Distribution Switches · SOIC-8++TPS2051ADR from Texas Instruments, in a SOIC-8. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.++## Pinout++| Pin | Name | Type | Function |+|---|---|---|---|+| 1 | GND | power_in | Device ground return for the switch and internal control circuitry. Tie to the system 0 V rail. |+| 2 | IN | power_in | Power-switch input voltage (2.7 V to 5.5 V). Pins 2 and 3 are the source of the internal N-channel high-side MOSFET and must be tied together and bypassed close to the device. |+| 3 | IN | power_in | Power-switch input voltage (2.7 V to 5.5 V). Pins 2 and 3 are the source of the internal N-channel high-side MOSFET and must be tied together and bypassed close to the device. |+| 4 | EN | input | Enable input, CMOS/TTL compatible. Logic HIGH turns the power switch on (TPS205xA is active-high). Do not leave floating. |+| 5 | OC | output | Overcurrent flag, open-drain active-low. Asserts low when the switch enters current limit or thermal shutdown. Requires an external pull-up resistor to a logic rail (typ. 10 kΩ to VCC). |+| 6 | OUT | power_out | Power-switch output (drain of the internal N-channel high-side MOSFET). Pins 6, 7 and 8 are the same OUT node and must be tied together; rated 500 mA continuous per channel, 0.9 A typical short-circuit current limit. |+| 7 | OUT | power_out | Power-switch output (drain of the internal N-channel high-side MOSFET). Pins 6, 7 and 8 are the same OUT node and must be tied together; rated 500 mA continuous per channel, 0.9 A typical short-circuit current limit. |+| 8 | OUT | power_out | Power-switch output (drain of the internal N-channel high-side MOSFET). Pins 6, 7 and 8 are the same OUT node and must be tied together; rated 500 mA continuous per channel, 0.9 A typical short-circuit current limit. |++## Key specifications++| Parameter | Value |+|---|---|+| Manufacturer | Texas Instruments |+| Package | SOIC-8 |+| Category | Power Management (PMIC) |+| Pins | 8 |++## Ordering variants++Same part, different packaging or reel option.++- `TPS2051ADRD`+- `TPS2051ADR`++## CAD (KiCad official)++- Symbol: `TPS2051ADR`+- Footprint: `Package_SO:SOIC-8_3.9x4.9mm_P1.27mm`+- 3D model: SOIC-8 (KiCad packages3D, STEP)++## Provenance++Data extracted from the manufacturer datasheet, not a distributor listing:++- **Datasheet:** [Texas Instruments datasheet](https://www.ti.com/lit/ds/symlink/tps2051a.pdf) (None pp, sha256 `e6c3c187a6b9b0bc`, retrieved 2026-08-17, tier: manufacturer)+- **Extractor:** `ds2sf` (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.+- **CAD:** KiCad official libraries (CC-BY-SA 4.0).++[Datasheet PDF](docs/tps2051adr-datasheet.pdf)

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