IRDC3821A International Rectifier, IRDC3821A Datasheet - Page 18

• Manufacturer Part Number: IRDC3821A
• Description: BOARD EVAL SYNC BUCK CONVERTER
• Manufacturer: International Rectifier

PD-60332
IR3821AMPbF
PCB Metal and Components Placement
The lead lands (the 11 IC pins) width should be equal to the nominal part lead width. The
minimum lead to lead spacing should be ≥ 0.2mm to minimize shorting.
Lead land length should be equal to the maximum part lead length + 0.3 mm outboard
extension. The outboard extension ensures a large and inspectable toe fillet.
The pad lands (the 4 big pads other than the 11 IC pins) length and width should be equal
to maximum part pad length and width. However, the minimum metal-to-metal spacing
should be no less than 0.17mm for 2 oz. Copper; no less than 0.1mm for 1 oz. Copper
and no less than 0.23mm for 3 oz. Copper.
11/04/08
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