AAT4280A_0511 Datasheet, PDF (12/14 Pages) Advanced Analogic Technologies – Slew Rate Controlled Load Switch

AAT4280A
Slew Rate Controlled Load Switch
Printed Circuit Board
Layout Recommendations
For proper thermal management and to take advan-
tage of the low R_DS(ON) of the AAT4280A, a few cir-
cuit board layout rules should be followed: V_IN and
V_OUT should be routed using wider than normal
traces, and GND should be connected to a ground
plane. To maximize package thermal dispation and
power handling capacity of the AAT4280A
SC70JW-8 package, the ground plane area con-
nected to the ground pins should be made as large
as possible. For best performance, C_IN and C_OUT
should be placed close to the package pins.
Evaluation Board Layout
The AAT4280A evaluation layout follows the print-
ed circuit board layout recommendations and can
be used for good applications layout. Refer to
Figures 1 through 3.
Note: Board layout shown is not to scale.
Figure 1: Evaluation Board
Top Side Silk Screen Layout /
Assembly Drawing.
Figure 2: Evaluation Board
Component Side Layout.
Figure 3: Evaluation Board
Solder Side Layout.
12
4280A.2005.11.1.3