# SCT2401TVBR

**SCT** · DC-DC Converters · TSOT-23-6L

SCT2401TVBR from SCT, in a TSOT-23-6L. 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 | BST | passive | Power supply for the high-side power MOSFET gate driver; a 0.1uF or greater ceramic capacitor must be connected between BST and SW. |
| 2 | GND | power_in | Ground reference pin for the device. |
| 3 | FB | input | Buck converter output feedback sensing input; a resistor divider from VOUT to FB sets the output voltage, and the device regulates FB to the internal 0.81V reference typically. |
| 4 | EN | input | Enable logic input that accepts voltages up to VIN and can be tied to VIN directly; precision thresholds are 1.21V rising and 1.1V falling for programmable UVLO and hysteresis. |
| 5 | VIN | power_in | Power supply input with an operating range of 4.5V to 40V that must be locally bypassed. |
| 6 | SW | output | Switching node of the buck converter. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | SCT |
| Package | TSOT-23-6L |
| Category | Power Management (PMIC) |
| Pins | 6 |

## 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 (absolute maximum: VIN, EN) | VIN, EN | -0.3 |  | 42 | V |  | 2 |
| BST pin voltage | BST | -0.3 |  | 49 | V |  | 2 |
| SW pin voltage | SW | -1 |  | 42 | V |  | 2 |
| BST-SW voltage | BST-SW | -0.3 |  | 7 | V |  | 2 |
| FB pin voltage | FB | -0.3 |  | 6 | V |  | 2 |
| Operating junction temperature |  | -40 |  | 150 | C |  | 2 |
| Storage temperature | TSTG | -65 |  | 150 | C |  | 2 |
| Input voltage range | VIN | 4.5 |  | 40 | V |  | 3 |
| Operating junction temperature | TJ | -40 |  | 125 | C |  | 3 |
| Operating input voltage | VIN | 4.5 |  | 40 | V |  | 3 |
| Shutdown current | ISD |  | 1 | 5 | uA | EN=0, No load, VIN=12V | 3 |
| Enable low threshold | VEN_L | 0.9 | 1.1 |  | V |  | 3 |
| Enable high threshold | VEN_H |  | 1.21 | 1.4 | V |  | 3 |
| Feedback voltage | VFB | 0.79 | 0.81 | 0.83 | V |  | 3 |
| HSD peak current limit | ILIM_HSD | 0.7 | 0.9 | 1.1 | A |  | 4 |
| Switching frequency | FSW | 960 | 1200 | 1440 | kHz | VIN=12V, VOUT=5V | 4 |
| Junction-to-ambient thermal resistance (RthetaJA) | RθJA |  | 89 |  | °C/W |  | 3 |
| Junction-to-case thermal resistance (RthetaJC) | RθJC |  | 39 |  | °C/W |  | 3 |

## CAD (KiCad official)

- Symbol: `SCT2401TVBR`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-6`
- 3D model: TSOT-23-6L (KiCad packages3D, STEP)
- 3D model files: `sct2401tvbr-etched.step` / `sct2401tvbr-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sct2401tvbr.step` / `sct2401tvbr.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [SCT datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8588904319566925824) (19 pp, sha256 `16edf4f667c8b4dc`, 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/sct2401tvbr-datasheet.pdf)