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ICW1238A33S4GQ1

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ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-223-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

componentpower management (pmic)icw1238a33s4gq1factory-2.0.0extractor-text

Verified ICW1238A33S4GQ1

by Ray · last 31 Oct 2026 · 1 record · files match
SymbolFootprint3D modelPins

Verification log 1 record

31 Oct 2026RayPublished by the parts factory: tier lcsc, 3 pinsfiles match
SymbolFootprint3D modelPinsfor all variants
  • ✓component-page-verify: PASS
  • ✓cad_props: Datasheet, MPN and distributor properties match page.json
  • ✓component: ICW1238A33S4GQ1 · SOT-223-3 · 3 pins
  • ✓copper: 4 copper pads, none touching another net
  • ✓datasheet: all 3 pin names found in the 15-page datasheet
  • •distributor (warn): no ['digikey', 'mouser'] number
  • ✓family: SOT-223-3_TabPin2
  • ✓files: 7 declared files present
  • ✓hero: docs/hero.png 4000x2500
  • ✓lbr: OK: /tmp/cpv-dpd1qju5/x.lbr is a valid EAGLE .lbr with complete deviceset
  • ✓license: CC-BY-SA-4.0
  • ✓models_3d: 2 records
  • •package_fit (skip): no component.package_dims on the page: the model is unchecked against the datasheet drawing
  • ✓pads: 3 pins = 3 pads
  • ✓pose: 2 STEP(s) Z-up, seated, centred
  • ✓symbol: 3 pins agree
  • ✓visibility: public, source open
Evidencedatasheet
Verified files✓ icw1238a33s4gq1.kicad_sym✓ icw1238a33s4gq1.kicad_mod✓ icw1238a33s4gq1.step
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Ray Publish 0.1.0 4185c23 7d ago

ICW1238A33S4GQ1

ICW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-223-3

ICW1238A33S4GQ1 from ICW, in a SOT-223-3. 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 Voltage input; operating range 2.2 V to 40 V (absolute maximum 45 V), with a 2.2 µF or larger input capacitor placed close to the pin.
2 GND power_in Ground pin.
3 VOUT power_out Regulated 3.3 V output (±2%) for up to 500 mA, needing a 2.2 µF or larger output capacitor and must not exceed VIN+0.3 V.

Key specifications

Parameter Value
Manufacturer ICW
Package SOT-223-3
Category Power Management (PMIC)
Pins 3

Electrical characteristics

Limits as printed in the datasheet (page.json metadata.characteristics carries them as data).

Parameter Symbol Min Typ Max Unit Conditions Page
Output voltage VOUT(S) 0.98 1.02 ×VOUT(S) VIN=VOUT(S)+2V, IOUT=10mA 6
Dropout voltage VDROP 10 20 mV IOUT=10mA 6
Dropout voltage VDROP 1000 1800 mV IOUT=1A 6
Line regulation 0.01 0.02 %/V VOUT(S)+2V≤VIN≤40V, IOUT=1mA 6
Load regulation 20 40 mV VIN=VOUT(S)+2V, 1mA≤IOUT≤300mA, VOUT(S)≤5.3V 6
Temperature stability -45 45 ppm/°C VIN=VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤85℃ 6
GND pin current IGND 0.8 1.6 2.5 uA No load, 3.0≤VOUT(S)≤5.3 6
GND pin current IGND 480 uA IOUT=100mA 6
Shutdown current ISH 0.1 1 uA VIN=40V, VEN=0V 6
Input voltage VIN 2.2 40 V 6
Output current IOUTMAX 0.5 A 6
Current limit ILIM 1.6 A VIN=VOUT(S)+2V, VOUT=0.9×VOUT(S) 6
Short circuit current ISHORT 230 mA VIN=VEN=VOUT(S)+2V, VOUT=0V 6
Power supply rejection ratio PSRR 72 dB f=10Hz, VOUT(S)=3.6V 6
Power supply rejection ratio PSRR 70 dB f=100Hz, VOUT(S)=3.6V 6
Power supply rejection ratio PSRR 65 dB f=1kHz, VOUT(S)=3.6V 6
EN pin high-level voltage VENH 1.6 40 V 6
EN pin low-level voltage VENL 0 0.5 V 6
EN pin high-level current IENH -0.1 0.1 uA VIN=40V, VEN=VIN 6
EN pin low-level current IENL -0.1 0.1 uA VIN=40V, VEN=0 6
Over-temperature protection OTP 155 °C IOUT=10mA 6
Input voltage (absolute maximum) VIN -0.3 45 V Ta=25℃ 5
Power dissipation SOT223-3 PD 1500 mW SOT223-3 5
Operating ambient temperature Topr -40 125 °C 5
Storage temperature Tstg -40 150 °C 5
ESD HBM ESD HBM -4000 4000 V 5
Thermal resistance RθJA 66 °C/W SOT223-3 5

CAD (KiCad official)

  • Symbol: ICW1238A33S4GQ1
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3 (KiCad packages3D, STEP)
  • 3D model files: icw1238a33s4gq1-etched.step / icw1238a33s4gq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); icw1238a33s4gq1.step / icw1238a33s4gq1.glb are the bare package body.

Provenance

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

  • Datasheet: ICW datasheet (15 pp, sha256 0a111c5858e69e15, retrieved 2026-10-31, 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