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ICW1235C33M5GQ1

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ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.

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ICW1235C33M5GQ1

ICW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT23-5

ICW1235C33M5GQ1 from ICW, in a SOT23-5. 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 2.2V to 40V (absolute maximum 45V), with CIN of 1µF or more placed close to the IC.
2 GND power_in Ground.
3 EN input Enable input; drive high (1.5V to 40V) to enable the device, drive low (0V to 0.6V) to put it in low-current shutdown.
4 NC unconnected No connect (empty pin).
5 VOUT power_out Regulated 3.3V output, up to 200mA, with COUT of 1µF or more placed close to the IC.

Key specifications

Parameter Value
Manufacturer ICW
Package SOT23-5
Category Power Management (PMIC)
Pins 5

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) multiplier, ±2% accuracy) VOUT(S) 0.98 1.02 x VOUT(S) VIN=VOUT(S)+2V, IOUT=1mA 5
Dropout voltage VDROP 4 8 mV VEN=VIN, VOUT(S)=3.3V, IOUT=1mA 5
Line regulation ΔVOUT/ΔVIN 0.01 0.02 %/V VOUT(S)+2V≤VIN≤40V, IOUT=1mA 5
Load regulation (VOUT(S)≤5.3V) VOUT2 20 40 mV VOUT(S)≤5.3V, VIN=VOUT(S)+2V, 1mA≤IOUT≤200mA 5
Output voltage temperature coefficient ΔVOUT/ΔTa·VOUT(s) -50 50 ppm/℃ -40≤Ta≤125 (printed '-40 ≤Ta≤12 5'), VIN=VOUT(S)+2V, IOUT=10mA 5
Ground current (no load, 3.0≤VOUT(S)≤5.3V) IGND 1 1.5 2.5 uA No load, VEN=VIN, 3.0≤VOUT(S)≤5.3V 5
Shutdown current ISHUT 0.1 1 uA VIN=40.0V, VEN=0 5
Operating input voltage VIN 2.2 40 V 5
Maximum output current IOUTMAX 150 200 mA 5
Output current limit ILIM 200 450 mA VIN=VOUT(S)+2V, VOUT=0.95×VOUT(S) 5
EN high-level input voltage VENH 1.5 40 V 5
EN low-level input voltage VENL 0 0.6 V 5
EN high-level leakage current IENH -0.1 0.1 uA VIN=40V, VEN=VIN 5
EN low-level leakage current IENL -0.1 0.1 uA VIN=40V, VEN=0 5
Over-temperature protection threshold OTP 170 ℃ IOUT=1mA 5
Power supply rejection ratio PSRR 79 dB f=100Hz, IOUT=10mA 5
Power supply rejection ratio PSRR 62 dB f=1kHz, IOUT=10mA 5
Power supply rejection ratio PSRR 48 dB f=10kHz, IOUT=10mA 5
Power supply rejection ratio PSRR 40 dB f=100kHz, IOUT=10mA 5
Input voltage (absolute maximum) VIN -0.3 45 V 4
Power dissipation (SOT23-5) PD 250 W SOT23-5 package 4
Thermal resistance junction-to-ambient (SOT23-5) RθJA 180 ℃/W SOT23-5 package, junction to ambient 4
Operating ambient temperature Topr -40 125 ℃ 4
Storage temperature range Tstg -55 150 ℃ 4
ESD rating (HBM) ESD HBM -4000 4000 V HBM 4
Input capacitor (CIN) CIN 1 µF Minimum input capacitance per application note 2
Output capacitor (COUT) COUT 1 µF Minimum output capacitance per application note 2
Output capacitor rated voltage (recommended) 25 V COUT=1µF 2
Output capacitor capacitance change over temperature -20 20 % COUT=1µF, high or low temperature (printed as 'not exceeding 20%') 2

CAD (KiCad official)

  • Symbol: ICW1235C33M5GQ1
  • Footprint: Package_TO_SOT_SMD:SOT-23-5
  • 3D model: SOT23-5 (KiCad packages3D, STEP)
  • 3D model files: icw1235c33m5gq1-etched.step / icw1235c33m5gq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); icw1235c33m5gq1.step / icw1235c33m5gq1.glb are the bare package body.

Provenance

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

  • Datasheet: ICW datasheet (14 pp, sha256 4fff9da69f54760e, retrieved 2026-10-19, 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+vision), consensus claude-opus-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