# EG0533

**EG Micro** · DC-DC Converters · ESOP-8

EG0533 from EG Micro, in a ESOP-8. 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 | VIN | power_in | Chip power supply input; the absolute maximum rating is -0.3 V to 36 V, and the electrical characteristics are tested at VIN = 12 V with 8 V ≤ Vi ≤ 36 V. |
| 2 | VO1 | power_out | 3.3 V linear regulator output, rated for a maximum output current of 100 mA (output 3.2 V to 3.4 V at Io1 = 1 mA, minimum input-output dropout 1.7 V at 100 mA). |
| 3 | IO | output | Output port of the overcurrent-protection transistor; absolute maximum rating is -0.3 V to VO1 + 0.3 V. |
| 4 | IS | input | Input port of the overcurrent-protection transistor; absolute maximum rating is -0.3 V to 36 V. |
| 5 | Bin | input | Input port of the power transistor, which can drive a buzzer or relay; absolute maximum rating is -0.3 V to 36 V, and the saturation voltage VCE is at most 0.7 V at Bin = 3.3 V and Ic = 100 mA. |
| 6 | GND | power_in | Chip ground. |
| 7 | CO | output | Collector output port of the power transistor; absolute maximum rating is -0.3 V to 36 V. |
| 8 | VO2 | power_out | 5 V linear regulator output, rated for a maximum output current of 100 mA (output 4.85 V to 5.15 V at Io2 = 1 mA, minimum input-output dropout 1.7 V at 100 mA). |
| 9 | EP | passive | Exposed pad (from the footprint; not named in the datasheet pin table). |

## Key specifications

| Parameter | Value |
|---|---|
| Manufacturer | EG Micro |
| Package | ESOP-8 |
| Category | Power Management (PMIC) |
| Pins | 9 |

## CAD (KiCad official)

- Symbol: `EG0533`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`
- 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files: `eg0533-etched.step` / `eg0533-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `eg0533.step` / `eg0533.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [EG Micro datasheet](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8589837560445890560) (10 pp, sha256 `6c3577406c3bfba9`, retrieved 2026-10-09, tier: lcsc)
- **Datasheet language:** Chinese. Pin names, descriptions, and specs on this page were extracted and translated to English by ds2sf; the linked PDF is the manufacturer original.
- **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/eg0533-datasheet.pdf)