component
CM1802B30
Public Made by Adomby adom
iCM(创芯微) Voltage Regulators - Linear, Low Drop Out (LDO) Regulators, SOT-23-3. Pinout cross-checked by two models against the datasheet, KiCad symbol/footprint/3D.
Generated by kicad-footprint-generator · KiCad file format 20260206
| Name | Last updated |
|---|---|
| docs | 16d ago |
| viewers | 16d ago |
| cm1802b30-etched.glb | 16d ago |
| cm1802b30-etched.step | 16d ago |
| cm1802b30-hero.glb | 16d ago |
| cm1802b30-hero.overlay.json | 16d ago |
| cm1802b30.glb | 16d ago |
| cm1802b30.kicad_mod | 16d ago |
| cm1802b30.kicad_sym | 16d ago |
| cm1802b30.lbr | 16d ago |
| cm1802b30.step | 16d ago |
| package.json | 16d ago |
| page.json | 16d ago |
| README.md | 16d ago |
CM1802B30
iCM(创芯微) · Voltage Regulators - Linear, Low Drop Out (LDO) Regulators · SOT-23-3
CM1802B30 from iCM(创芯微), in a SOT-23-3. 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 | GND | power_in | Ground reference pin for the regulator; the datasheet gives no separate electrical limit for this pin beyond the absolute maximum ratings for the other pins. |
| 2 | VOUT | power_out | Regulated 3.0V output for the CM1802B30 option, rated for up to 500mA, with an absolute-maximum VOUT-to-GND voltage of -0.3 to 5V. |
| 3 | VIN | power_in | Input supply pin with an operating input voltage of 1.8 to 6.5V per the electrical characteristics table and an absolute-maximum VIN-to-GND voltage of -0.3 to 6.5V. |
Key specifications
| Parameter | Value |
|---|---|
| Manufacturer | iCM(创芯微) |
| Package | SOT-23-3 |
| 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 |
|---|---|---|---|---|---|---|---|
| Input voltage | VIN | 1.8 | 6.5 | V | 6 | ||
| Quiescent current | IGND | 40 | µA | VIN=5.5V，空载 | 6 | ||
| Output voltage accuracy (3.0V variant) | VOUT | -2 | 2 | % | VIN=5.5V，IOUT=10mA | 6 | |
| Output current | IOUT_MAX | 500 | mA | 6 | |||
| Dropout voltage | VDROP | 20 | mV | IOUT=10mA，ΔVOUT=-0.1V | 6 | ||
| Dropout voltage | VDROP | 110 | mV | IOUT=100mA，ΔVOUT=-0.1 | 6 | ||
| Load regulation | ΔVOUT | 0.2 | % | 1mA≤IOUT≤300mA | 6 | ||
| Line regulation | ΔVOUT/ΔVIN | 0.1 | mV/V | IOUT=1mA，VIN=(VOUTNOM+1V) to 6V | 6 | ||
| Current limit | ILIMIT | 500 | mA | 6 | |||
| Power supply rejection ratio | 65 | dB | f=10kHz, COUT=1uF, IOUT=30mA | 6 | |||
| Over-temperature protection threshold | TSHDN | 155 | ℃ | 6 | |||
| Over-temperature recovery threshold | TSHDNR | 135 | ℃ | 6 | |||
| VIN to GND withstand voltage | -0.3 | 6.5 | V | 5 | |||
| VOUT to GND withstand voltage | -0.3 | 5 | V | 5 | |||
| VIN to VOUT withstand voltage | 0.3 | 5 | V | 5 | |||
| Operating ambient temperature | -40 | 85 | ℃ | 5 | |||
| Storage temperature | -40 | 150 | ℃ | 5 | |||
| Operating junction temperature | 150 | ℃ | 5 | ||||
| Human body model ESD | HBM | 2 | kV | 5 | |||
| Thermal resistance, SOT23-3 | 380 | ℃/W | 5 | ||||
| Input voltage (recommended) | VIN | 2.5 | 6 | V | 1 | ||
| Input capacitor Cin (typical application) | Cin | 1 | 1 | 10 | µF | 2 | |
| Output capacitor Cout (typical application) | Cout | 1 | 10 | 10 | µF | 2 |
CAD (KiCad official)
- Symbol:
CM1802B30 - Footprint:
Package_TO_SOT_SMD:SOT-23-3 - 3D model: SOT-23-3 (KiCad packages3D, STEP)
- 3D model files:
cm1802b30-etched.step/cm1802b30-etched.glbcarry the MPN laser-etched on the die in a toggleableAdom.LaserEtchgroup (Fusion-ready);cm1802b30.step/cm1802b30.glbare the bare package body.
Provenance
Data extracted from the manufacturer datasheet, not a distributor listing:
- Datasheet: iCM(创芯微) datasheet (17 pp, sha256
705d32c0266022ed, retrieved 2026-10-17, 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-haiku-5-5(text), consensusclaude-sonnet-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).