# LM2833XSD

**Texas Instruments** · DC-DC Converters · WSON-10-EP(3x3)

LM2833XSD from Texas Instruments, in a WSON-10-EP(3x3). 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 | VINC | power_in | Input supply for internal bias and control circuitry; bypass to GND. |
| 2 | EN | input | Enable control input; logic high enables operation; do not allow to float or exceed VIN + 0.3V. |
| 3 | SGND | power_in | Signal (analog) ground; place bottom resistor of feedback network as close as possible to this pin for good load regulation. |
| 4 | NC | unconnected | No user function; connect this pin to GND. |
| 5 | FB | input | Feedback pin; connect to external resistor divider to set output voltage. |
| 6 | PGND | power_in | Power ground pin; provides ground return path for the internal driver. |
| 7 | SW | output | Switch pin; connect to inductor and catch diode. |
| 8 | SW | output | Switch pin; connect to inductor and catch diode. |
| 9 | VIND | power_in | Input supply voltage; connect a bypass capacitor locally from this pin to PGND. |
| 10 | VIND | power_in | Input supply voltage; connect a bypass capacitor locally from this pin to PGND. |
| 11 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | Texas Instruments |
| Package | WSON-10-EP(3x3) |
| Category | Power Supply Chip |
| Pins | 11 |

## CAD (KiCad official)

- Symbol: `LM2833XSD`
- Footprint: `Package_SON:VSON-10-1EP_3x3mm_P0.5mm_EP1.2x2mm`
- 3D model: WSON-10-EP(3x3) (KiCad packages3D, STEP)
- 3D model files: `lm2833xsd-etched.step` / `lm2833xsd-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `lm2833xsd.step` / `lm2833xsd.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/lm2833) (32 pp, sha256 `bf1870ef3f8a9cb6`, retrieved 2026-10-07, tier: lcsc)
- **Extractor:** parts-factory `2.0.0` / `extract_pins 0.3`, primary `claude-haiku-4-5-20251001` (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/lm2833xsd-datasheet.pdf)