
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
| Attributes | Value | |
|---|---|---|
| Category | Power Management (PMIC)/AC-DC Controllers and Regulators | |
| Manufacturer | SKYWORKS/SILICON LABS | |
| Package | QFN-20-EP(4x4) | |
| Operating Temperature | -40℃~+85℃ | |
| Frequency - Switching | 250kHz~500kHz | |
| Voltage - Supply | 1.5V~57V | |
| Duty Cycle(Max) | 75% | |
| Working Mode | PWM Modulation | |
| Isolation | Isolation | |
| Features | Over Current Protection、Short Circuit Protection、Overtemperature protection (OTP)、Under-voltage lockout、Adjustable current limiting | |
| Topology | Flyback、Buck | |
| Pd - Power Dissipation | 0.5W | |
| Voltage - Breakdown | 120V |

* Images are for reference only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.

* Images are for reference only
Note: The purchased components are stored in your JLCPCB parts library for future PCBA orders only, and cannot be shipped separately.
SI3404-A-GM technical specifications, attributes, and parameters.
| Attributes | Value | |
|---|---|---|
| Category | Power Management (PMIC)/AC-DC Controllers and Regulators | |
| Manufacturer | SKYWORKS/SILICON LABS | |
| Package | QFN-20-EP(4x4) | |
| Operating Temperature | -40℃~+85℃ | |
| Frequency - Switching | 250kHz~500kHz | |
| Voltage - Supply | 1.5V~57V | |
| Duty Cycle(Max) | 75% | |
| Working Mode | PWM Modulation | |
| Isolation | Isolation | |
| Features | Over Current Protection、Short Circuit Protection、Overtemperature protection (OTP)、Under-voltage lockout、Adjustable current limiting | |
| Topology | Flyback、Buck | |
| Pd - Power Dissipation | 0.5W | |
| Voltage - Breakdown | 120V |
From components to fully assembled PCBs. JLCPCB supports PCB assembly for the SI3404-A-GM. Sign up to receive and start your assembly today →
Step 1 - Pre-order the parts you need from JLCPCB.
Step 2 - Place a PCBA order to have those parts assembled onto your boards.
Step 3 - JLCPCB manufactures and assembles your boards in as fast as 3 days.

SI3404-A-GM datasheets or manufacturer documentation.
Datasheet: SI3404-A-GM Datasheet (PDF)
The SI3404-A-GM schematic symbol and PCB footprint are available in the EasyEDA PCB design tool.