Micrel, Inc.
MIC5159
June 2006
10
M9999-062706
Designing with MIC5159
The following section details:
"    Application examples of possible input/output
configurations     with     related     schematics
designator.
"    Schematics     with     Bill     of     Materials
recommendation,   dropout   performance   and
maximum   output   current   for   each   FET
combination.
"    Further advice on MOSFET selection.
3.3V
IN
to 2.5V
OUT
Conversion
I
OUT
C
OUT
MOSFET
Package    Schematic
1.0A
10礔     Si4433DY
SO-8
C
2.5A
22礔     Si4433DY x2
SO-8
D
2.5A
10礔     SUB15P01-52
D2PAK
H
3.5A
44礔     Si4433DY x3
SO-8
E
5.0A
44礔     Si4433DY x4
SO-8
F
5.0A
22礔     SUB15P01-52 x2     D2PAK
I
7.5A
44礔     SUB15P01-52 x3     D2PAK
J
10.0A     44礔     SUB15P01-52 x4     D2PAK
K
3.3V
IN
to 1.8V
OUT
Conversion
I
OUT
C
OUT
MOSFET
Package    Schematic
0.6A
10礔     Si4433DY
SO-8
C
1.25A     22礔     Si4433DY x2
SO-8
D
1.25A     10礔     SUB15P01-52
D2PAK
H
2.0A
44礔     Si4433DY x3
SO-8
E
2.5A
44礔     Si4433DY x4
SO-8
F
2.5A
22礔     SUB15P01-52 x2     D2PAK
I
3.75A     44礔     SUB15P01-52 x3     D2PAK
J
5.0A
44礔     SUB15P01-52 x4     D2PAK
K
3.3V
IN
to 1.5V
OUT
Conversion
I
OUT
C
OUT
MOSFET
Package    Schematic
0.5A
10礔     Si4433DY
SO-8
C
1.0A
22礔     Si4433DY x2
SO-8
D
1.0A
10礔     SUB15P01-52
D2PAK
H
1.5A
44礔     Si4433DY x3
SO-8
E
2.0A
44礔     Si4433DY x4
SO-8
F
2.0A
22礔     SUB15P01-52 x2     D2PAK
I
3.0A
44礔     SUB15P01-52 x3     D2PAK
J
4.25A     44礔     SUB15P01-52 x4     D2PAK
K
3.3V
IN
to 1.25V
OUT
Conversion
I
OUT
C
OUT
MOSFET
Package    Schematic
0.4A
10礔     Si4433DY
SO-8
C
0.75A     22礔     Si4433DY x2
SO-8
D
0.75A     10礔     SUB15P01-52
D2PAK
H
1.25A     44礔     Si4433DY x3
SO-8
E
1.75A     44礔     Si4433DY x4
SO-8
F
1.75A     22礔     SUB15P01-52 x2     D2PAK
I
2.75A     44礔     SUB15P01-52 x3     D2PAK
J
3.75A     44礔     SUB15P01-52 x4     D2PAK
K
2.5V
IN
to 1.8V
OUT
Conversion
I
OUT
C
OUT
MOSFET
Package    Schematic
1.25A     10礔     Si4433DY
SO-8
C
2.5A
22礔     Si4433DY x2
SO-8
D
2.5A
10礔     SUB15P01-52
D2PAK
H
4.0A
44礔     Si4433DY x3
SO-8
E
5.5A
44礔     Si4433DY x4
SO-8
F
5.5A
22礔     SUB15P01-52 x2     D2PAK
I
8.0A
44礔     SUB15P01-52 x3     D2PAK
J
11.0A     44礔     SUB15P01-52 x4     D2PAK
K
2.5V
IN
to 1.5V
OUT
Conversion
I
OUT
C
OUT
MOSFET
Package    Schematic
1.0A
10礔     Si4433DY
SO-8
C
2.0A
22礔     Si4433DY x2
SO-8
D
2.0A
10礔     SUB15P01-52
D2PAK
H
3.0A
44礔     Si4433DY x3
SO-8
E
4.0A
44礔     Si4433DY x4
SO-8
F
4.0A
22礔     SUB15P01-52 x2     D2PAK
I
6.0A
44礔     SUB15P01-52 x3     D2PAK
J
8.0A
44礔     SUB15P01-52 x4     D2PAK
K
2.5V
IN
to 1.25V
OUT
Conversion
I
OUT
C
OUT
MOSFET
Package    Schematic
0.75A     10礔     Si4433DY
SO-8
C
1.5A
22礔     Si4433DY x2
SO-8
D
1.5A
10礔     SUB15P01-52
D2PAK
H
2.0A
44礔     Si4433DY x3
SO-8
E
3.0A
44礔     Si4433DY x4
SO-8
F
3.0A
22礔     SUB15P01-52 x2     D2PAK
I
4.5A
44礔     SUB15P01-52 x3     D2PAK
J
6.0A
44礔     SUB15P01-52 x4     D2PAK
K