RT8205AGQW RT8205A (CJ) Laptop Motherboard IC

Product Description

The RT8205AGQW RT8205A (CJ) is a high-efficiency dual-output power supply controller IC from Richtek, designed for notebook/laptop power-management applications. It controls two synchronous buck converter channels and is commonly used in laptop motherboard power circuits.

The CJ marking identifies the RT8205AGQW / RT8205A version. The IC is housed in a 24-pin WQFN 4 × 4 mm package with an exposed thermal pad.

The RT8205A operates with a 6V to 25V input range and provides regulated power-control functions for notebook motherboard power supplies, including 5V and 3.3V power rails.

Important Note:-

• Please compare the marking CJ and part number RT8205AGQW with your original IC before ordering.

• CJ is the product-code marking associated with RT8205AGQW / RT8205A.

• This is a laptop motherboard power-management IC, not a complete motherboard.

• The IC uses a 24-pin WQFN 4 × 4 mm package.

• Do not confuse RT8205A (CJ) with RT8205B (CK) or RT8205C (CL), as these are different variants.

• Verify the original IC marking, package and motherboard circuit before replacement.

• Professional SMD rework equipment and proper soldering skills are recommended for installation.

• Incorrect installation can damage the IC or laptop motherboard.

• The product does not include any motherboard, MOSFET, heatsink or other components.

• Payment will be refunded if the product is out of stock.

• Immediate replacement will be provided if there are any functionality problems.

• Warranty will be void in case of physical damage, incorrect installation or soldering damage.

• The product image is for reference and the actual marking may vary slightly.

FAQs

1. What is RT8205AGQW?
RT8205AGQW is a dual-output notebook power supply controller IC manufactured by Richtek.

2. What does the CJ marking mean?
The CJ product-code marking identifies the RT8205AGQW / RT8205A version.

3. What is the package of RT8205AGQW?
It uses a 24-pin WQFN package measuring 4 × 4 mm.

4. Is RT8205AGQW used in laptop motherboards?
Yes. It is specifically described as a controller for notebook power systems and is used in laptop motherboard power-management circuits.

5. Is RT8205A the same as RT8205B and RT8205C?
No. RT8205A, RT8205B and RT8205C are different variants with different pin configurations/functions, so the exact original part must be matched before replacement.