component
ICW1235C33M5GQ1
Public Made by Adomby adom
ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT23-5. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
main
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.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);icw1235c33m5gq1.step/icw1235c33m5gq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ICW datasheet (14 pp, sha256
4fff9da69f54760e, retrieved 2026-10-19, 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, 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).
# 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](https://jlcpcb.com/api/file/downloadByFileSystemAccessId/8603356925682216960) (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](docs/icw1235c33m5gq1-datasheet.pdf)