# ICW1235C33E8GQ1

**ICW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · ESOP-8

ICW1235C33E8GQ1 from ICW, 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 | VOUT | power_out | Regulated voltage output (3.3V fixed for this variant), up to 200mA, with COUT of 1uF or more. |
| 2 | NC | unconnected | No connection. |
| 3 | NC | unconnected | No connection. |
| 4 | EN | input | Enable input, active high: drive high to enable the device, leave low for low-current shutdown (VENH 1.5V to 40V, VENL 0 to 0.6V). |
| 5 | GND | power_in | Ground. |
| 6 | NC | unconnected | No connection. |
| 7 | NC | unconnected | No connection. |
| 8 | VIN | power_in | Voltage input, operating range 2.2V to 40V (absolute max 45V), with CIN of 1uF or more. |
| 9 | Thermal pad | passive | Thermal pad connected to ground to improve thermal performance. |

## Key specifications

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

## CAD (KiCad official)

- Symbol: `ICW1235C33E8GQ1`
- Footprint: `Package_SO:SOIC-8-1EP_3.9x4.9mm_P1.27mm_EP2.41x3.3mm`
- 3D model: ESOP-8 (KiCad packages3D, STEP)
- 3D model files: `icw1235c33e8gq1-etched.step` / `icw1235c33e8gq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `icw1235c33e8gq1.step` / `icw1235c33e8gq1.glb` are the bare package body.

## Provenance

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

- **Datasheet:** [ICW datasheet](docs/icw1235c33e8gq1-datasheet.pdf) (14 pp, sha256 `4fff9da69f54760e`, retrieved 2026-10-22, 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-sonnet-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/icw1235c33e8gq1-datasheet.pdf)