SS6383A Datasheet, PDF (6/7 Pages) Silicon Standard Corp. – 2A DDR Termination Regulator

PIN DESCRIPTIONS (TO-252-5)
PIN 1:
PIN 2:
PIN 3:
VIN - Input supply pin. It provides
main power to create the
external reference voltage by
divider resistors for regulating
V_{REF and VOUT}.
GND - Ground pin.
VCNTL - Input supply pin. It is used to
supply all the internal control
circuitry.
APPLICATION INFORMATION
Layout Consideration
As the SS6383A is in SO-8 and TO-252-5
packages, it is unable to dissipate heat easily when
it operates at high current. To avoid exceeding
the maximum junction temperature, a suitable
copper area must be used.
SS6383A(G)
PIN 4:
PIN 5:
VREF - Reference voltage input. Pull
this pin low to shutdown device.
VOUT - Output pin.
The large copper area shown at V_{CNTL pins is}
able to relieve the thermal dissipation. Using the
via to direct heat into the large copper area shown
on the bottom layer also helps significantly.
All capacitors should be placed as close as
possible to the relevant pins.
Figure 10. Top layer
Figure 11. Bottom layer
Figure 12. Placement
11/07/2004 Rev.2.01
www.SiliconStandard.com
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