# ETA2847S2G

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

ETA2847S2G 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 | GND | power_in | Ground pin of the regulator, connected to the system ground. |
| 2 | SW | output | Inductor connection: connect an inductor between SW and the regulator output; SW voltage is limited to -0.3 V to VIN+0.3 V. |
| 3 | IN | power_in | Supply voltage input for the regulator, operating range 4.5 V to 28 V, absolute maximum 34 V; bypass with a 10 µF ceramic capacitor to GND. |
| 4 | FB | input | Feedback input: connect an external resistor divider from the output to FB and GND to set VOUT; the FB threshold is 0.596 V and FB voltage is limited to -0.3 V to 6 V. |
| 5 | EN | input | Enable pin: drive high to enable the part, low to disable it; EN rising threshold is 1.28 V and EN voltage is limited to -0.3 V to VIN+0.3 V. |
| 6 | BST | passive | Bootstrap pin: connect a 100 nF capacitor from this pin to SW; BST voltage is limited to -0.3 V to SW+6 V. |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| Package | SOT-23-6 |
| 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 |  | 4.5 |  | 28 | V |  | 2 |
| FB Feedback Voltage |  | 0.581 | 0.596 | 0.611 | V |  | 2 |
| VIN Voltage | VIN | -0.3 |  | 34 | V |  | 2 |
| SW, EN Voltage (max VIN+0.3V) |  | -0.3 |  |  | V |  | 2 |
| BST Voltage (max SW+6V) |  | -0.3 |  |  | V |  | 2 |
| FB Voltage | FB | -0.3 |  | 6 | V |  | 2 |
| Operating Temperature Range |  | -40 |  | 85 | °C |  | 2 |
| Storage Temperature Range |  | -55 |  | 150 | °C |  | 2 |
| Thermal Resistance SOT23-6 (junction to case) | θJC |  | 110 |  | °C/W |  | 2 |

## CAD (KiCad official)

- Symbol: `ETA2847S2G`
- Footprint: `Package_TO_SOT_SMD:SOT-23-6`
- 3D model: SOT-23-6 (KiCad packages3D, STEP)
- 3D model files: `eta2847s2g-etched.step` / `eta2847s2g-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eta2847s2g.step` / `eta2847s2g.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/8590916643897745408) (7 pp, sha256 `406705a015f31310`, retrieved 2026-10-17, 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/eta2847s2g-datasheet.pdf)