# ETA5053V120DF1E

**etasolution** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · DFN1x1-4

ETA5053V120DF1E from etasolution, in a DFN1x1-4. 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 | VOUT | power_out | Output of the regulator, rated for a continuous output current of 300mA with an output voltage range of 0.8V to 3.95V in 50mV steps. |
| 2 | GND | power_in | Ground pin for the regulator. |
| 3 | EN | input | Enable pin: drive high to enable the IC and low to disable it, with logic low at or below 0.4V and logic high at or above 1.4V for 1.8V ≤ VIN ≤ 6V; EN can be connected to VIN if not used. |
| 4 | VIN | power_in | Input supply pin, with an input voltage range of 1.6V to 6.0V and an absolute maximum of 6V. |
| 5 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | etasolution |
| Package | DFN1x1-4 |
| Category | Power Management (PMIC) |
| Pins | 5 |

## CAD (KiCad official)

- Symbol: `ETA5053V120DF1E`
- Footprint: `Package_DFN_QFN:UDFN-4-1EP_1x1mm_P0.65mm_EP0.48x0.48mm`
- 3D model: DFN1x1-4 (KiCad packages3D, STEP)
- 3D model files: `eta5053v120df1e-etched.step` / `eta5053v120df1e-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eta5053v120df1e.step` / `eta5053v120df1e.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/8603065709899493376) (13 pp, sha256 `0ecaa0a47ee055dc`, 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/eta5053v120df1e-datasheet.pdf)