IR3508ZMPBF International Rectifier, IR3508ZMPBF Datasheet - Page 16

• Manufacturer Part Number: IR3508ZMPBF
• Description: The IR3508ZM Phase IC combined with any IR XPhase3 Control IC provides a full featured and flexible way to implement a power solution for the latest high performance CPUs and ASICs.
• Manufacturer: International Rectifier

Specifications of IR3508ZMPBF

• Package: 20-Lead MLPQ
• Circuit: X-Phase Phase IC
• Pbf: PbF Option Available

PCB Metal and Component Placement
• Lead land width should be equal to nominal part lead width. The minimum lead to lead spacing should be ≥
• Lead land length should be equal to maximum part lead length + 0.3 mm outboard extension + 0.05mm
• Center pad land length and width should be equal to maximum part pad length and width. However, the
• Four 0.3mm diameter vias shall be placed in the pad land spaced at 1.2mm, and connected to ground to
• No PCB traces should be routed nor vias placed under any of the 4 corners of the IC package. Doing so can
0.2mm to minimize shorting.
inboard extension. The outboard extension ensures a large and inspectable toe fillet, and the inboard
extension will accommodate any part misalignment and ensure a fillet.
minimum metal to metal spacing should be ≥ 0.17mm for 2 oz. Copper (≥ 0.1mm for 1 oz. Copper and ≥
0.23mm for 3 oz. Copper)
minimize the noise effect on the IC and to transfer heat to the PCB.
cause the IC to rise up from the PCB resulting in poor solder joints to the IC leads.
Page 16 of 19
Jan 09, 2009
IR3508Z