Datasheet

LM4936
SNAS269A APRIL 2005REVISED APRIL 2013
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LM4936 MH HTSSOP Board Artwork
(1)(2)
Composite View Silk Screen
Top Layer Internal Layer 1
Internal Layer 2 Bottom Layer
(1) When driving 3 loads from a 5V supply the LM4936MH must be mounted to the circuit board and forced-air cooled. The demo board
shown in the datasheet has planes for heat sinking. The top layer plane is 1.05 in
2
(675mm
2
), the inner two layers each have a 1.03 in
2
(667mm
2
) plane and the bottom layer has a 3.32 in
2
(2143mm
2
) plane. The planes are electrically GND and interconnected through six
15 mil vias directly under the package and eight 28 mil vias in various locations.
(2) When driving 4 loads from a 5V supply the LM4936MH must be mounted to the circuit board. The demo board shown in the datasheet
has planes for heat sinking. The top layer plane is 1.05 in
2
(675mm
2
), the inner two layers each have a 1.03 in
2
(667mm
2
) plane and the
bottom layer has a 3.32 in
2
(2143mm
2
) plane. The planes are electrically GND and interconnected through six 15 mil vias directly under
the package and eight 28 mil vias in various locations.
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