# ETA2842S2G

**etasolution** · DC-DC Converters · SOT-23-6

ETA2842S2G from etasolution, in a SOT-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 | BST | passive | Bootstrap pin; connect a 10nF capacitor from this pin to SW to drive the high-side switch. |
| 2 | GND | power_in | Ground reference for the device; the 10μF input bypass capacitor and the FB divider return connect here. |
| 3 | FB | input | Feedback input with a 0.8V reference; connect an external resistor divider from the output to FB and GND to set VOUT (RTOP = RBOTTOM x [(VOUT/0.8) - 1]). |
| 4 | EN | input | Enable pin; drive high to enable the part and low to disable it, with a rising threshold of 0.8V min, 1.1V typ, 1.4V max and an absolute maximum of -0.3V to VIN+0.3V. |
| 5 | IN | power_in | Supply voltage input with an operating range of 4V to 38V and a 42V input standoff rating; bypass with a 10μF ceramic capacitor to GND. |
| 6 | SW | output | Inductor connection; connect the inductor between SW and the regulator output, with an absolute maximum of -0.3V to VIN+0.3V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| Package | SOT-23-6 |
| Category | Power Management (PMIC) |
| Pins | 6 |

## CAD (KiCad official)

- Symbol: `ETA2842S2G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `eta2842s2g-etched.step` / `eta2842s2g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eta2842s2g.step` / `eta2842s2g.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [etasolution datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8590908990824001536) (7 pp, sha256 `30c7cb54ee954f53`, 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/eta2842s2g-datasheet.pdf)