# SY8511BADC

**Silergy Corp** · DC-DC Converters · TSOT-23-6

SY8511BADC from Silergy Corp, in a TSOT-23-6. 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 | BS | passive | Bootstrap pin that supplies the high-side gate driver; connect a 0.1µF ceramic capacitor in series with a 10Ω resistor between BS and LX. |
| 2 | GND | power_in | Ground pin. |
| 3 | FB | input | Output feedback pin, connected to the center point of the output resistor divider to set VOUT = 0.6×(1+R1/R2), with a 0.6V ±1% reference. |
| 4 | EN | input | Enable control: pull high to turn on (rising threshold 1.14V to 1.26V, falling threshold 0.94V to 1.06V) and do not leave it floating. |
| 5 | IN | power_in | Input pin for the 4.5V to 100V supply; decouple to GND with at least a 1µF ceramic capacitor. |
| 6 | LX | output | Inductor pin connected to the switching node of the inductor; keep the copper area on this node minimized to limit noise. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `SY8511BADC`
- Footprint: `Package_TO_SOT_SMD:TSOT-23-6`
- 3D model: TSOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `sy8511badc-etched.step` / `sy8511badc-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `sy8511badc.step` / `sy8511badc.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [Silergy Corp datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589839343054315520) (12 pp, sha256 `3039ee20fd35e494`, retrieved 2026-10-09, 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/sy8511badc-datasheet.pdf)