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ICW1261A50S3GQ1
Public Made by Adomby adom
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.
3D Model
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Symbol & Footprint
Schematic Symbol
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PCB Footprint
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Datasheet
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README
markdownICW1261A50S3GQ1
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);icw1261a50s3gq1.step/icw1261a50s3gq1.glbare 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, primaryclaude-sonnet-5-5(text+vision), consensusclaude-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).