SAMHOP Microelectronics Corp.
SM8303
150KHz, 3A PWM Buck Switching Regulator
size, shape, thickness, position, location, and even
board temperature. Other factors are, trace width,
total printed circuit copper area, copper thickness,
single or double-sided, multilayer board and the
amount of solder on the board. The effectiveness
of the PC board to dissipate heat also depends on
the size, quantity and spacing of other components
on the board, as well as whether the surrounding
air is still or moving. Furthermore, some of these
components such as the catch diode will add heat
to the PC board and the heat can vary as the input
voltage changes. For the inductor, depending on
the physical size, type of core material and the DC
resistance, it could either act as a heat sink taking
heat away from the board, or it could add heat to
the board.
ꢀMarking Information
(1) TO263-5L
(2) TO220-5L
( Top view )
( Top view )
Output Type:
8303-ADJ: ADJ
8303-33: 3.3V
8303-50: 5.0V
8303-12: 12V
Logo
SM
8303XX
YY WW ~
Output Type:
8303-ADJ: ADJ
8303-33: 3.3V
8303-50: 5.0V
8303-12: 12V
Logo
SM
8303-XX
YY WW ~
ID code
ID code
Xth week: 01~52
Year:
"03" = 2003
"04" = 2004
Xth week: 01~52
Year: "03" = 2003
"04" = 2004
9
V1.0 May 17 ,2007
SAMHOP [ SAMHOP MICROELECTRONICS CORP. ]
