ICW1235C50M5GQ1 from ICW, in a SOT23-5. Pinout and pin descriptions extracted from the manufacturer datasheet by ds2sf; symbol, footprint, and 3D from KiCad-official CAD.

Pinout

Pin	Name	Type	Function
1	VIN	power_in	Input supply pin. Operates from 2.2 V to 40 V (absolute max -0.3 V to 45 V). Bypass to GND with a ceramic capacitor of 1 µF or greater placed close to the pin.
2	GND	power_in	Device ground reference. Return path for input, output and internal reference circuitry.
3	EN	input	Enable input, active high (ICW1235C variant, CE external). Drive ≥1.5 V (up to 40 V) to enable the regulator; drive ≤0.6 V (or tie to GND) to put the device into low-current shutdown (Ishut ≤1 µA at VIN=40 V). Do not leave floating.
4	NC	unconnected	No internal connection. Leave floating or tie to GND for mechanical stability; do not use as an electrical tie point.
5	VOUT	power_out	Regulated 5.0 V output (±2% accuracy), capable of sourcing up to 200 mA. Requires a ceramic output capacitor of 1 µF or greater (≥25 V rated if 1 µF is used). VOUT must not exceed VIN + 0.3 V (parasitic diode conduction).

Key specifications

Parameter	Value
Manufacturer	ICW
Package	SOT23-5
Category	PMIC
Pins	5

Ordering variants

Same part, different packaging or reel option.

ICW1235C50M5GQ1
ICW1235C50M5GQ1PGQ1
ICW1235C50M5GQ1S3GQ1
ICW1235C50M5GQ1E8GQ1

CAD (KiCad official)

Symbol: ICW1235C50M5GQ1
Footprint: Package_TO_SOT_SMD:SOT-23-5
3D model: SOT23-5 (KiCad packages3D, STEP)

3D model downloads

Two STEP files. Same geometry, different body top:

File	Size	Use it when
`icw1235c50m5gq1.step`	85 KB	You want the bare part, or you mark your own boards.
`icw1235c50m5gq1-etched.step`	2.9 MB	You want the part with `ICW1235C50M5GQ1` already on it.

The marking in the etched file is real recessed geometry cut into the solid, not a texture or a decal: 687 faces against 102 in the bare model. It survives export, section views, and rendering in any CAD tool, and it drops straight into KiCad or Fusion with no extra setup.

Provenance

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

Datasheet: ICW datasheet (14 pp, sha256 4fff9da69f54760e, retrieved 2026-08-17, 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: ds2sf (Claude). Every pin and dimension is cited to a datasheet page; it refuses to fabricate.
CAD: KiCad official libraries (CC-BY-SA 4.0).

Datasheet PDF