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ICW1261A50S3GQ1

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

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ICW1261A50S3GQ1

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

ICW1261A50S3GQ1 from ICW, in a SOT-223-3L. 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 Power input pin; operating input range 2.2V to 60V (absolute maximum -0.3 to 65V).
2 GND power_in Ground pin; the package tab is also labeled pin 2 in the SOT223-3L drawing.
3 VOUT power_out Regulated 5.0V output pin, up to 150mA, requires 2.2uF or larger output capacitor and must not exceed VIN+0.3V.

Key specifications

Parameter Value
Manufacturer ICW
Package SOT-223-3L
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 Accuracy -2 2 % 1
Output Voltage VOUT(S) 0.98 1.02 V VIN=VOUT(S)+2V, IOUT=1mA 6
Input Voltage VIN 2.2 60 V 6
Maximum Output Current IOUTMAX 150 mA 6
Dropout Voltage VDROP 8 16 mV VEN=VIN, VOUT(S)=5.0V, IOUT=1mA 6
Dropout Voltage VDROP 1300 1800 mV VEN=VIN, VOUT(S)=5.0V, IOUT=150mA 6
Line Regulation ΔVOUT/ΔVIN 0.01 0.02 %/V VOUT(S)+2V≤VIN≤60V, IOUT=1mA 6
Load Regulation VOUT2 20 40 mV VIN=VOUT(S)+2V, 1mA≤IOUT≤150mA, VOUT(S)≤5.3V 6
Temperature Stability ΔVOUT/ΔT -40 40 ppm/℃ VIN=VOUT(S)+2V, IOUT=10mA, -40℃≤Ta≤125℃ 6
GND Current, no load IGND 1 2.3 3 uA VEN=VIN, no load, 3.0≤VOUT(S)≤5.3V 6
Shutdown Current ISHUT 0.1 1 uA VIN=60V, VEN=0 6
EN High Level Voltage VENH 1.5 60 V 6
EN Low Level Voltage VENL 0 0.6 V 6
EN High Level Current IENH -0.1 0.1 uA VIN=60V, VEN=VIN 6
EN Low Level Current IENL -0.1 0.1 uA VIN=60V, VEN=0 6
Input Voltage VIN -0.3 65 V 5
Power Dissipation PD 1500 mW SOT223-3L 5
Operating Ambient Temperature Topr -40 125 ℃ 5
Storage Temperature Tstg -40 150 ℃ 5
ESD Protection HBM ESD HBM -4000 4000 V 5
Ground Current, Current Limit ILIM 240 mA VEN=VIN=VOUT(S)+2V, VOUT=0.95×VOUT(S) 6
Short Circuit Current ISHORT 10 VIN=VEN=VOUT(S)+2.0V, VOUT=0V 6
Power Supply Rejection Ratio f=10Hz PSRR 76 dB f=10Hz, IOUT=10mA 6
Power Supply Rejection Ratio f=100Hz PSRR 80 dB f=100Hz, IOUT=10mA 6
Power Supply Rejection Ratio f=1kHz PSRR 63 dB f=1kHz, IOUT=10mA 6
Over Temperature Protection OTP 165 ℃ IOUT=1mA 6
Thermal Resistance Junction-to-Ambient RθJA 66 ℃/W SOT223-3L 5

CAD (KiCad official)

  • Symbol: ICW1261A50S3GQ1
  • Footprint: Package_TO_SOT_SMD:SOT-223-3_TabPin2
  • 3D model: SOT-223-3L (KiCad packages3D, STEP)
  • 3D model files: icw1261a50s3gq1-etched.step / icw1261a50s3gq1-etched.glb carry the MPN laser-etched on the die in a toggleable Adom.LaserEtch group (Fusion-ready); icw1261a50s3gq1.step / icw1261a50s3gq1.glb are the bare package body.

Provenance

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

  • Datasheet: ICW datasheet (17 pp, sha256 913cf67cbbac4a27, retrieved 2026-10-18, tier: lcsc)
  • 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