IR3838MTR1PBF Datasheet, PDF (34/35 Pages) International Rectifier – HIGHLY INTEGRATED 10A SINGLE-INPUT VOLTAGE, SYNCHRONOUS BUCK REGULATOR

IR3838MPbF
Stencil Design
Stencils for PQFN can be used with thicknesses of 0.100-0.250mm (0.004-0.010"). Stencils thinner
than 0.100mm are unsuitable because they deposit insufficient solder paste to make good solder
joints with the ground pad; high reductions sometimes create similar problems. Stencils in the
range of 0.125mm-0.200mm (0.005-0.008"), with suitable reductions, give the best results.
Evaluations have shown that the best overall performance is achieved using the stencil design
shown in following figure. This design is for a stencil thickness of 0.127mm (0.005"). The reduction
should be adjusted for stencils of other thicknesses.
Stencil pad sizing (all dimensions in mm)
Stencil pad spacing (all dimensions in mm)
Rev 1.41
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