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SS6638G Datasheet(PDF) 18 Page - Silicon Standard Corp.

Part # SS6638G
Description  Simple 3-Pin Step-Up DC/DC Converter
PDF  19 Pages
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Manufacturer  SSC [Silicon Standard Corp.]
Direct Link  http://www.siliconstandard.com
Logo SSC - Silicon Standard Corp.

SS6638G Datasheet(HTML) 18 Page - Silicon Standard Corp.

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COMPONENT POWER DISSIPATION
Operating in discontinuous mode, power loss in
the winding resistance of inductor can be
approximated to
()
()
OUT
OUT
D
OUT
ON
L
P
V
V
V
Rs
L
T
3
2
PD
+
=
where POUT=VOUT ×IOUT ; Rs=Inductor DC R;
VD = Diode drop.
The power dissipated due to the switch loss is
()
()
OUT
OUT
IN
D
OUT
ON
ON
P
V
V
V
V
R
L
T
3
2
PDsw
−
+
=
The power dissipated in the rectifier diode is
)
(P
V
V
PD
OUT
OUT
D
D
=
PHYSICAL DIMENSIONS (unit: mm)
SOT
-23-3 (GU)
SYMBOL
MIN
MAX
A
0.95
1.45
A1
0.05
0.15
A2
0.90
1.30
b
0.30
0.50
c
0.08
0.22
D
2.80
3.00
E
2.60
3.00
E1
1.50
1.70
e
0.95 BSC
e1
1.90 BSC
L
0.30
0.60
L1
0.60 REF
E
D
E1
e1
e
A1
A
A2
b
0.25
L1
L
θ
c
θ
0˚
8˚
SS6638G
8/21/2005 Rev.2.3



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