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ICW1235A120PGQ1
Public Made by Adomby adom
ICW Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT89-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
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ICW1235A120PGQ1
ICW · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT89-3
ICW1235A120PGQ1 from ICW, in a SOT89-3. 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 (12.0V for this variant), driven by an internal P-channel MOSFET; VOUT must not exceed VIN+0.3V. |
| 2 | GND | power_in | Ground; the package tab is also labeled 2 and the thermal pad is connected to ground to improve thermal performance. |
| 3 | VIN | power_in | Voltage input, operating range 2.2V to 40V, with an absolute maximum of 45V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ICW |
| Package | SOT89-3 |
| 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 (输出电压), limit as multiple of VOUT(S) | VOUT(S) | 0.98 | 1.02 | x VOUT(S) | VIN=VOUT(S)+2V, IOUT=1mA; limits multiply VOUT(S), 12.0V for this MPN | 5 | |
| Dropout voltage (压差), IOUT=1mA | VDROP | 4 | 8 | mV | VEN=VIN, VOUT(S)=3.3V, IOUT=1mA | 5 | |
| Dropout voltage (压差), IOUT=200mA | VDROP | 120 | mV | VEN=VIN, VOUT(S)=3.3V, IOUT=200mA | 5 | ||
| Line regulation (电源电压调整率) | ΔVOUT/(VOUT·ΔVIN) | 0.01 | 0.02 | ％/V | VOUT(S)+2V≤VIN≤40V, IOUT=1mA | 5 | |
| Load regulation (负载特性), VOUT(S)>5.3V | VOUT2 | 50 | 80 | mV | VIN=VOUT(S)+2V, 1mA≤IOUT≤200mA, VOUT(S)>5.3V | 5 | |
| Temperature stability (温度稳定性) | ΔVOUT/(ΔTa·VOUT(S)) | -50 | 50 | ppm/℃ | VIN=VOUT(S)+2V, IOUT=10mA, -40≤Ta≤125 | 5 | |
| Ground current (接地电流), no load, VOUT(S)>5.3V | IGND | 1.5 | 2.3 | 3.5 | uA | VEN=VIN, no load, VOUT(S)>5.3V | 5 |
| Shutdown current (关断电流) | ISHUT | 0.1 | 1 | uA | EN=0, VIN=40.0V, VEN=0 | 5 | |
| Operating voltage (工作电压) | VIN | 2.2 | 40 | V | 5 | ||
| Output current limit (输出限流) | ILIM | 200 | 450 | mA | VIN=VOUT(S)+2V, VOUT=0.95×VOUT(S) | 5 | |
| Maximum output current (最大输出电流) | IOUTMAX | 150 | 200 | mA | 5 | ||
| EN high level (EN高电位) | VENH | 1.5 | 40 | V | 5 | ||
| EN low level (EN低电位) | VENL | 0 | 0.6 | V | 5 | ||
| EN high-level leakage (EN高电位漏电) | IENH | -0.1 | 0.1 | uA | VIN=40V, VEN=VIN | 5 | |
| EN low-level leakage (EN低电位漏电) | IENL | -0.1 | 0.1 | uA | VIN=40V, VEN=0 | 5 | |
| Input voltage (工作电压) absolute maximum | VIN | -0.3 | 45 | V | 4 | ||
| Output voltage (输出电压) absolute maximum | VOUT | -0.3 | 0.3 | V | printed as Vss-0.3 (min, referenced to Vss) and VIN+0.3 (max, referenced to VIN) | 4 | |
| Power dissipation (耗散功率), SOT89-3 | PD | 1000 | W | SOT89-3 | 4 | ||
| Thermal resistance junction-to-ambient (封装热阻), SOT89-3 | RθJA | 100 | ℃/W | junction to ambient, SOT89-3 | 4 | ||
| Operating ambient temperature (工作环境温度) | Topr | -40 | 125 | ℃ | 4 | ||
| Storage temperature (储存温度范围) | Tstg | -55 | 150 | ℃ | 4 | ||
| ESD HBM (ESD等级) | ESD HBM | -4000 | 4000 | V | HBM, printed as ±4000V | 4 | |
| Input capacitor (输入电容 CIN) recommended | CIN | 1 | µF | recommended value 1 µF or more | 2 | ||
| Output capacitor (输出电容 COUT) recommended | COUT | 1 | µF | recommended value 1 µF or more | 2 | ||
| Output capacitor voltage rating (COUT=1uF) recommended | COUT rated voltage | 25 | V | when COUT=1uF, recommended not less than 25V | 2 | ||
| Output capacitor change over temperature (COUT=1uF) recommended | ΔC/C | 20 | % | at high or low temperature, when COUT=1uF | 2 |
CAD (KiCad official)
- Symbol:
ICW1235A120PGQ1 - Footprint:
Package_TO_SOT_SMD:SOT-89-3 - 3D model: SOT89-3 (KiCad packages3D, STEP)
- 3D model files:
icw1235a120pgq1-etched.step/icw1235a120pgq1-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);icw1235a120pgq1.step/icw1235a120pgq1.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: ICW datasheet (14 pp, sha256
4fff9da69f54760e, retrieved 2026-10-18, 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).
# ICW1235A120PGQ1
**ICW** · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT89-3
ICW1235A120PGQ1 from ICW, in a SOT89-3. 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 (12.0V for this variant), driven by an internal P-channel MOSFET; VOUT must not exceed VIN+0.3V. |
| 2 | GND | power_in | Ground; the package tab is also labeled 2 and the thermal pad is connected to ground to improve thermal performance. |
| 3 | VIN | power_in | Voltage input, operating range 2.2V to 40V, with an absolute maximum of 45V. |
## Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | ICW |
| Package | SOT89-3 |
| 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 (输出电压), limit as multiple of VOUT(S) | VOUT(S) | 0.98 | | 1.02 | x VOUT(S) | VIN=VOUT(S)+2V, IOUT=1mA; limits multiply VOUT(S), 12.0V for this MPN | 5 |
| Dropout voltage (压差), IOUT=1mA | VDROP | | 4 | 8 | mV | VEN=VIN, VOUT(S)=3.3V, IOUT=1mA | 5 |
| Dropout voltage (压差), IOUT=200mA | VDROP | | 120 | | mV | VEN=VIN, VOUT(S)=3.3V, IOUT=200mA | 5 |
| Line regulation (电源电压调整率) | ΔVOUT/(VOUT·ΔVIN) | | 0.01 | 0.02 | ％/V | VOUT(S)+2V≤VIN≤40V, IOUT=1mA | 5 |
| Load regulation (负载特性), VOUT(S)>5.3V | VOUT2 | | 50 | 80 | mV | VIN=VOUT(S)+2V, 1mA≤IOUT≤200mA, VOUT(S)>5.3V | 5 |
| Temperature stability (温度稳定性) | ΔVOUT/(ΔTa·VOUT(S)) | -50 | | 50 | ppm/℃ | VIN=VOUT(S)+2V, IOUT=10mA, -40≤Ta≤125 | 5 |
| Ground current (接地电流), no load, VOUT(S)>5.3V | IGND | 1.5 | 2.3 | 3.5 | uA | VEN=VIN, no load, VOUT(S)>5.3V | 5 |
| Shutdown current (关断电流) | ISHUT | | 0.1 | 1 | uA | EN=0, VIN=40.0V, VEN=0 | 5 |
| Operating voltage (工作电压) | VIN | 2.2 | | 40 | V | | 5 |
| Output current limit (输出限流) | ILIM | 200 | | 450 | mA | VIN=VOUT(S)+2V, VOUT=0.95×VOUT(S) | 5 |
| Maximum output current (最大输出电流) | IOUTMAX | 150 | | 200 | mA | | 5 |
| EN high level (EN高电位) | VENH | 1.5 | | 40 | V | | 5 |
| EN low level (EN低电位) | VENL | 0 | | 0.6 | V | | 5 |
| EN high-level leakage (EN高电位漏电) | IENH | -0.1 | | 0.1 | uA | VIN=40V, VEN=VIN | 5 |
| EN low-level leakage (EN低电位漏电) | IENL | -0.1 | | 0.1 | uA | VIN=40V, VEN=0 | 5 |
| Input voltage (工作电压) absolute maximum | VIN | -0.3 | | 45 | V | | 4 |
| Output voltage (输出电压) absolute maximum | VOUT | -0.3 | | 0.3 | V | printed as Vss-0.3 (min, referenced to Vss) and VIN+0.3 (max, referenced to VIN) | 4 |
| Power dissipation (耗散功率), SOT89-3 | PD | | | 1000 | W | SOT89-3 | 4 |
| Thermal resistance junction-to-ambient (封装热阻), SOT89-3 | RθJA | | 100 | | ℃/W | junction to ambient, SOT89-3 | 4 |
| Operating ambient temperature (工作环境温度) | Topr | -40 | | 125 | ℃ | | 4 |
| Storage temperature (储存温度范围) | Tstg | -55 | | 150 | ℃ | | 4 |
| ESD HBM (ESD等级) | ESD HBM | -4000 | | 4000 | V | HBM, printed as ±4000V | 4 |
| Input capacitor (输入电容 CIN) recommended | CIN | 1 | | | µF | recommended value 1 µF or more | 2 |
| Output capacitor (输出电容 COUT) recommended | COUT | 1 | | | µF | recommended value 1 µF or more | 2 |
| Output capacitor voltage rating (COUT=1uF) recommended | COUT rated voltage | 25 | | | V | when COUT=1uF, recommended not less than 25V | 2 |
| Output capacitor change over temperature (COUT=1uF) recommended | ΔC/C | | | 20 | % | at high or low temperature, when COUT=1uF | 2 |
## CAD (KiCad official)
- Symbol: `ICW1235A120PGQ1`
- Footprint: `Package_TO_SOT_SMD:SOT-89-3`
- 3D model: SOT89-3 (KiCad packages3D, STEP)
- 3D model files: `icw1235a120pgq1-etched.step` / `icw1235a120pgq1-etched.glb` carry the MPN laser-etched on the die in a toggleable `Adom.LaserEtch` group (Fusion-ready); `icw1235a120pgq1.step` / `icw1235a120pgq1.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/8603356925619167232) (14 pp, sha256 `4fff9da69f54760e`, retrieved 2026-10-18, 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/icw1235a120pgq1-datasheet.pdf)