Products > Integrated Circuits (ICs) > Power Management ICs > SI3404-A-GM
  • SI3404-A-GM

Images are for reference only.


Hot Sale

Hot Swap Voltage Controllers 802.3 Type 1 Compliant PD

  • Package/Case :
  • 20-VFQFN
  • Product Categories :
  • Power Management ICs , Voltage Regulators & Voltage Controllers
  • RoHs Status:
  • Lead free / RoHS Compliant
  • In-stock:
  • 3614


Request for Quotation

Warm Tips: Please fill out the below form and we will contact you as soon as possible.

SI3404-A-GM Product Details

Silicon Labs’ Si3404 and Si3406x products integrate an IEEE 802.3at PoE controller and a high-efficiency DC/DC converter onto a single chip. Both reduce BOM cost and board space with an on-chip TVS protection diode and DC/DC switching FET; the Si3406x also integrates the rectifier diode bridges to reduce cost and board space even further. The low-cost Si3404 comes in a tiny 4 mm x 4 mm QFN for 13 W (class 3) applications. Reaching 90% efficiency, the Si3406x family delivers 25 W (class 4) power with industry-leading on-chip integration in a small 5 mm x 5 mm QFN.To simplify the PoE design process, Silicon Labs offers five evaluation boards (EVBs), each implementing a different power supply topology, optimized for size and efficiency. Every EVB has been tested and passed EMI emissions and is designed for customers to copy into their end products. The complete BOM, schematic, design files, and EMI test reports are included with the EVBs.<strong>Features:</strong> 13W 802.3at type 1, class 3 and 802.3af compliant PoE device, Integrated DC/DC converter: Supports flyback or buck topologies, Tunable switching frequency, On-chip TVS protection diode and DC/DC switching FET, 120 V process technology for high reliability and efficiency, Tiny 4 mm x 4 mm QFN package, 25 W 802.3at type 1 or 2, class 4 PoE/PoE+ device family Si3406 - feature rich 802.3at type 1 or 2 device, Si34061 - highest efficiency, highest output power, Si34062 - lowest standby power, On-chip rectifier diode bridges, TVS protection diode, and DC/DC switching FET, Small 5 mm x 5 mm QFN package, Integrated DC/DC converter: Supports flyback or buck topologies, Tunable switching frequency, Up to 90% efficiency, Automated maintain power signature (MPS) support, 120 V process technology for high reliability and efficiency, VoIP phones, Security cameras, Wireless access points, Point of sale devices, Industrial and machine vision cameras, Intelligent lighting fixtures, Connected digital building systems - HVAC sensors, badge readers, door locks, and others

Silicon Labs Si3404 Power Over Ethernet (PoE) Powered Device (PD) is a highly-integrated, IEEE 802.3at Type 1-compliant, Pulse-Width-Modulated (PWM) Switching Regulator. The Si3404 integrates all power management and control functions required in a Power-over-Ethernet application. The Si3404 PD converts the high voltage supplied over a 10/100/1000BASE-T Ethernet connection to a regulated, low-voltage output supply. The optimized architecture of this device minimizes the solution footprint and external BOM (Bill of Materials) cost, and enables the use of low-cost external components while maintaining high performance.

Technical Parameters

  • Manufacturer
  • Silicon Labs
  • Series
  • -
  • Packaging
  • Tray&nbsp;
  • Part Status
  • Active
  • Type
  • Controller (PD), DC/DC
  • Number of Channels
  • 1
  • Power Max
  • 15W
  • Internal Switch(s)
  • Yes
  • Auxiliary Sense
  • No
  • Standards
  • 802.3at (PoE)
  • Voltage Supply
  • 1.5 V ~ 57 V
  • Current Supply
  • 600mA
  • Operating Temperature
  • -40°C ~ 85°C (TA)
  • Package / Case
  • 20-QFN Exposed Pad
  • Supplier Device Package
  • 20-QFN-EP (4x4)
  • Standard Package
  • 490

SI3404-A-GM Related Products

Ratings and Reviews

  • 0 / 5
  • 5 Stars 0%
  • 4 Stars 0%
  • 3 Stars 0%
  • 2 Stars 0%
  • 1 Stars 0%
  • Ratings
  • Please rate the product!
Shipping More
Estimated Delivery Time: Jul 05 - Jul 10 days (choose Expedited at checkout).

Shipping & Payment


  • Shipping Type
  • Ship Fee
  • Lead Time
  • $20.00-$40.00 (0.50 KG)
  • 2-5 days
  • $20.00-$40.00 (0.50 KG)
  • 3-7 days
  • $20.00-$45.00 (0.50 KG)
  • 2-5 days
  • $25.00-$65.00 (0.50 KG)
  • 2-5 days
  • $25.00-$45.00 (0.50 KG)
  • 5-14 days
  • $2.00-$3.00 (0.10 KG)
  • 7-30 days

Processing Time:Shipping fee depend on different zone and country.


  • Terms of payment
  • Hand Fee
  • Payment Site
  • charge US$30.00 banking fee.
  • charge 4.0% service fee.
  • charge 3.5% service fee.
  • charge US$0.00 banking fee.
  • charge US$0.00 banking fee.

We provide high quality products, thoughtful service and after sale guarantee

  • We have rich products, can meet your various needs.

    We have rich products, can meet your various needs.

  • Minimum order quantity starts from 1pcs.

    Minimum order quantity starts from 1pcs.

  • Lowest international shipping fee starts from US$2.00.

    Lowest international shipping fee starts from US$2.00.

  • 90 days quality guarantee for all products.

    90 days quality guarantee for all products.


  • Step1:Product

    Step1: Products

  • Step2:Vacuum packaging

    Step2: Vacuum Packaging

  • Step3:Anti-static bag

    Step3: Anti-Static Bag

  • Step4:Individual packaging

    Step4: Individual Packaging

  • Step5:Packaging boxes

    Step5: Packaging Boxes

  • Step6:bar-code shipping tag

    Step6: Bar-Code Shipping Tag

All the products will packing in anti-staticbag. Ship with ESD antistatic protection.

Outside ESD packing’s lable will use ourcompany’s information: Part Mumber, Brand and Quantity.

We will inspect all the goods before shipment,ensure all the products at good condition and ensure the parts are new originalmatch datasheet.

After all the goods are ensure no problems afterpacking, we will packing safely and send by global express. It exhibitsexcellent puncture and tear resistance along with good seal integrity.

Jotrin ESD packing


1.We provide 90 days warranty.

2.If some of the items you received aren't of perfect quality, we would resiponsibly arrange your refund or replacement. But the items must remain their orginal condition.


Q: How does Jotrin guarantee that SI3404-A-GM is the original manufacturer or agent of SILICON LABS?
We have a professional business development department to strictly test and verify the qualifications of SILICON LABS original manufacturers and agents. All SILICON LABS suppliers must pass the qualification review before they can publish their SI3404-A-GM devices; we pay more attention to the channels and quality of SI3404-A-GM products than any other customer. We strictly implement supplier audits, so you can purchase with confidence.
Q: How to find the detailed information of SI3404-A-GM chips? Including SILICON LABS original factory information, Power Management ICs , Voltage Regulators & Voltage Controllers application, SI3404-A-GM pictures?
You can use Jotrin's intelligent search engine, or filter by Power Management ICs , Voltage Regulators & Voltage Controllers category, or find it through Silicon Laboratories Inc Information page.
Q: Are the SILICON LABS's SI3404-A-GM price and stock displayed on the platform accurate?
The SILICON LABS's inventory fluctuates greatly and cannot be updated in time, it will be updated periodically within 24 hours. After submitting an order for SI3404-A-GM, it is recommended to confirm the order with Jotrin salesperson or online customer service before payment.
Q: Can I place an order offline?
Yes. We accept offline orders.
We can provide order placement service. You only need to log in, click "My Orders" to enter the transaction management, and you will see the "Order Details" interface. After checking it, select all and click "Place Order". In addition, you can enjoy coupons or other selected gifts when placing orders online.
Q: What forms of payment can I use in Jotrin?
TT Bank, Paypal, Credit Card, Western Union, and Escrow is all acceptable.
Q: How is the shipping arranged and track my package?
Customers can choose industry-leading freight companies, including DHL, FedEx, UPS, TNT, and Registered Mail.
Once your order has been processed for shipment, our sales will send you an e-mail advising you of the shipping status and tracking number.
Note: It may take up to 24 hours before carriers will display tracking information. In normal conditions, Express delivery needs 3-5 days, Registered Mail needs 25-60 days.
Q: What is the process for returns or replacement of SI3404-A-GM?
All goods will implement Pre-Shipment Inspection (PSI), selected at random from all batches of your order to do a systematic inspection before arranging the shipment. If there is something wrong with the SI3404AGM we delivered, we will accept the replacement or return of the SI3404-A-GM only when all of the below conditions are fulfilled:
(1)Such as a deficiency in quantity, delivery of wrong items, and apparent external defects (breakage and rust, etc.), and we acknowledge such problems.
(2)We are informed of the defect described above within 90 days after the delivery of SI3404-A-GM.
(3)The SI3404-A-GM is unused and only in the original unpacked packaging.
Two processes to return the products:
(1)Inform us within 90 days
(2)Obtain Requesting Return Authorizations
More details about return electronic components please see our Return & Change Policy.
Q: How to contact us and get support, such as SI3404-A-GM datasheet pdf, SI3404 pin diagram?
Need any After-Sales service, please feel free contact us:

Silicon Laboratories Inc

Silicon Labs, Inc. is a leading provider of networking, software and system solutions for the Internet of Things, Internet infrastructure, industrial control, consumer electronics and automotive markets. We solve the toughest problems in the electronics industry, providing customers with significant...
  • MGM12P32F1024GA-V2
    MGM12P32F1024GA-V2 Zigbee Module, ARM Cortex-M4, IEEE 802.15.4, 250Kbps, I2C, I2S, SPI, U...
  • SLWRB4104A
    SLWRB4104A Blue Gecko +10dBm Wireless SoC 2.4GHz Bluetooth Radio Board for EFR32B...
  • SLWRB4303A
    SLWRB4303A Bluetooth/802.15.1 Development Tools Blue Gecko BGM11S 8dBM Radio Boar...
    BOXNUC8I7HNK1 Embedded Box Computers Intel NUC Kit NUC8i7HNK - Intel Core i7-8705G P...
  • CM8068403377308S R3N5
    CM8068403377308S R3N5 CPU - Central Processing Units 8th Gen Intel Core i3-8100 Processor (T...
    LIS25BATR Accelerometers MEMS digital output motion sensor: low noise, high band...

Certificates & Honor

Certificates & Honor