BD4xxS5-C Series
Pin Configurations
TO263-5
(Top View)
HTSOP-J8
(Top View)
TO252-3
(Top View)
TO252-5
(Top View)
TO263-3
(Top View)
6 (FIN)
6 (FIN)
FIN
4 (FIN)
4 (FIN)
1
2
3
1 2 3 4 5
1
2
3
1 2 3 4 5
Figure 3. Pin Configurations
Pin Descriptions
■BD433S5FP-C / BD450S5FP-C
■BD433S5WFP-C / BD450S5WFP-C
Pin No.
Pin Name
VCC
Pin Function
Supply voltage input pin
Not connected
Output pin
Pin No.
Pin Name
VCC
Pin Function
1
1
Supply voltage input pin
Output control pin
Not connected
Not connected
Output pin
2
3
N.C.
2
CTL
VOUT
GND
3
N.C.
4 (FIN)
Ground pin
4
5
N.C.
VOUT
GND
6 (FIN)
Ground pin
■BD433S5FP2-C / BD450S5FP2-C
■BD433S5WFP2-C / BD450S5WFP2-C
Pin No.
Pin Name
VCC
Pin Function
Supply voltage input pin
Ground pin
Pin No.
Pin Name
VCC
Pin Function
Supply voltage input pin
Output control pin
Ground pin
1
1
2
3
GND
2
CTL
VOUT
GND
Output pin
3
GND
4 (FIN)
Ground pin
4
5
N.C.
Not connected
Output pin
VOUT
GND
6 (FIN)
Ground pin
■BD433S5EFJ-C / BD450S5EFJ-C
■BD433S5WEFJ-C / BD450S5WEFJ-C
Pin No.
Pin Name
VOUT
N.C.
Pin Function
Output pin
Pin No.
Pin Name
VOUT
N.C.
Pin Function
Output pin
1
2
3
4
5
6
7
8
-
1
2
3
4
5
6
7
8
-
Not connected
Not connected
Not connected
Ground pin
Not connected
Not connected
Not connected
Ground pin
N.C.
N.C.
N.C.
N.C.
GND
GND
N.C.
Not connected
Not connected
Supply voltage input pin
Heat dissipation
N.C.
Not connected
Output control pin
Supply voltage input pin
Heat dissipation
N.C.
CTL
VCC
VCC
EXP-PAD
EXP-PAD
* N.C. Pin is recommended to short with GND.
* N.C. Pin can be open because it isn’t connected it inside of IC.
* EXP-PAD on the back side is connected to the IC substrate, so it should connect to external ground node.
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TSZ02201-0BJB0A600080-1-2
30.May.2023 Rev.003
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