# XTP8012AS2CT

**XTX** · DC-DC Converters · SOT-23-5

XTP8012AS2CT from XTX, in a SOT-23-5. 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 | EN | input | Chip enable pin: drive EN above 1V to turn the part on, drive it below 0.3V to turn it off, and do not leave it floating. |
| 2 | GND | power_in | Ground pin for the regulator; the datasheet gives no electrical limits for this pin and recommends a star ground connection for CIN, the IC ground and COUT in the layout checklist. |
| 3 | SW | output | Power switch output and switch node connected to the inductor, tied to the drains of the internal P-ch and N-ch MOSFET switches. |
| 4 | VIN | power_in | Power supply input that must be closely decoupled to GND with a 10µF or greater ceramic capacitor; the Electrical Characteristics specify an input range of 2.5V to 5.5V. |
| 5 | FB | input | Output voltage feedback pin, where an internal resistive divider scales the output voltage down for comparison to the internal 0.6V reference. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | XTX |
| Package | SOT-23-5 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## Electrical characteristics

Limits as printed in the datasheet (page.json `metadata.characteristics` carries them as data).

| Parameter | Symbol | Min | Typ | Max | Unit | Conditions | Page |
|---|---|---|---|---|---|---|---|
| Input Voltage range |  | 2.5 |  | 5.5 | V |  | 4 |
| UVLO | UVLO | 2.1 | 2.3 | 2.5 | V |  | 4 |
| UVLO hysteresis |  | 0.1 | 0.2 | 0.3 | V |  | 4 |
| FB voltage |  | 588 | 600 | 612 | mV | No load | 4 |
| Switching frequency |  | 1.6 | 2 | 2.4 | M | VFB=0.5V | 4 |
| OTP |  | 135 | 150 | 165 | ℃ |  | 4 |
| OTP hysteresis |  | 20 | 30 | 40 | ℃ |  | 4 |
| VIN to GND |  | -0.3 |  | 7 | V |  | 3 |
| EN Voltage |  | -0.3 |  | 6 | V |  | 3 |
| SW Voltage |  | -0.3 |  |  | V |  | 3 |
| Peak SW Sink and Source Current |  |  |  | 2.2 | A |  | 3 |
| Continuous Power Dissipation (TA = 25℃) | PD |  |  | 0.5 | W | TA = 25℃ | 3 |
| Junction Temperature |  | -40 |  | 165 | ℃ |  | 3 |
| Lead Temperature |  |  |  | 260 | ℃ |  | 3 |
| Storage Temperature |  | -65 |  | 150 | ℃ |  | 3 |
| Thermal Resistance junction-to-ambient SOT23-5L | θJA |  | 170 |  | ℃/W | Measured on JESD51-7, 4-layer PCB | 3 |
| Thermal Resistance junction-to-case | θJC |  | 75 |  | ℃/W |  | 3 |

## CAD (KiCad official)

- Symbol: `XTP8012AS2CT`
- Footprint: `Package_TO_SOT_SMD:SOT-23-5`
- 3D model: SOT-23-5 (KiCad packages3D, STEP)
- 3D model files: `xtp8012as2ct-etched.step` / `xtp8012as2ct-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `xtp8012as2ct.step` / `xtp8012as2ct.glb` are the bare package body.

## Provenance

Data extracted from the manufacturer datasheet, not a distributor listing:

- **Datasheet:** [XTX datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8756856451505627136) (9 pp, sha256 `794caaafdefef3cd`, retrieved 2026-10-18, 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/xtp8012as2ct-datasheet.pdf)