component
ICW1235A33PGQ1
Public Made by Adomby adom
ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-89-3. 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
markdownICW1235A33PGQ1
ICW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-89-3
ICW1235A33PGQ1 from ICW, in a SOT-89-3. 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 | VOUT | power_out | Regulated voltage output (3.3V fixed, up to 200mA); VOUT must not exceed VIN+0.3V, and a 1uF or larger output capacitor is required. |
| 2 | GND | power_in | Ground; the tab (also labeled 2) is connected to ground and improves thermal performance. |
| 3 | VIN | power_in | Voltage input, 2.2V to 40V operating (absolute maximum 45V), with a 1uF or larger input capacitor placed close to the IC. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ICW |
| Package | SOT-89-3 |
| 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 | 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/(VOUT·ΔVIN) | 0.01 | 0.02 | %/V | VOUT(S)+2V≤VIN≤40V, IOUT=1mA | 5 | |
| Load regulation | VOUT2 | 20 | 40 | mV | VOUT(S)≤5.3V, VIN=VOUT(S)+2V, 1mA≤IOUT≤200mA | 5 | |
| Temperature stability | ΔVOUT/(ΔTa·VOUT(S)) | -50 | 50 | ppm/°C | VIN=VOUT(S)+2V, IOUT=10mA, -40≤Ta≤125 | 5 | |
| Ground current | IGND | 1 | 1.5 | 2.5 | uA | VEN=VIN, no load, 3.0≤VOUT(S)≤5.3V | 5 |
| Shutdown current | ISHUT | 0.1 | 1 | uA | VIN=40.0V, VEN=0 | 5 | |
| Operating 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 | |
| Input voltage (working) | VIN | -0.3 | 45 | V | 3 | ||
| Power dissipation (SOT89-3) | PD | 1000 | W | SOT89-3 package | 3 | ||
| Operating ambient temperature | Topr | -40 | 125 | ℃ | 3 | ||
| Storage temperature range | Tstg | -55 | 150 | ℃ | 3 | ||
| ESD HBM | ESD HBM | -4000 | 4000 | V | 3 | ||
| Thermal resistance, junction to ambient (SOT89-3) | RθJA | 100 | ℃/W | SOT89-3 package | 3 |
CAD (KiCad official)
- Symbol:
ICW1235A33PGQ1 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT-89-3 (KiCad packages3D, STEP)
- 3D model files:
icw1235a33pgq1-etched.step/icw1235a33pgq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);icw1235a33pgq1.step/icw1235a33pgq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ICW datasheet (14 pp, sha256
4fff9da69f54760e, retrieved 2026-11-05, 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, 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).