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BD18KA5F Scheda tecnica(PDF) 4 Page - Rohm

Il numero della parte BD18KA5F
Spiegazioni elettronici  500mA Secondary LDO Regulators for Local Power Supplies
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Produttore elettronici  ROHM [Rohm]
Homepage  http://www.rohm.com
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BD□□KA5,BD□□KA5W Series,BD00KA5W Series
Technical Note
4/9
www.rohm.com
2009.04 - Rev.A
© 2009 ROHM Co., Ltd. All rights reserved.
Block diagrams, Standard circuit examples
Pin No.
PinName
Function
1
CTL
Output voltage ON/OFF control
2
Vcc
Power supply voltage input
3
N.C.
Unconnected terminal
4
OUT
Voltage output
5
ADJ
Output voltage configuration terminal
FIN
GND
GND
Pin No.
Pin Name
Function
1
OUT
Voltage output
2
ADJ
Output voltage configuration terminal
3
N.C.
Unconnected terminal
4
5
CTL
Output voltage ON/OFF control
6
GND
GND
7
8
Vcc
Power supply voltage input
Pin No.
Pin Name
Function
1
CTL
Output voltage ON/OFF control
2
Vcc
Power supply voltage input
3
N.C.
Unconnected terminal
4
OUT
Voltage output
5
N.C.
Unconnected terminal
FIN
GND
GND
Pin No.
Pin Name
Function
1
OUT
Voltage output
2
N.C.
Unconnected terminal
3
4
5
CTL
Output voltage ON/OFF control
6
GND
GND
7
8
Vcc
Power supply voltage input
Pin No.
Pin Name
Function
1
Vcc
Power supply voltage input
2
N.C.
Unconnected terminal
3
OUT
Voltage output
FIN
GND
GND
1
8
4
5
TOP VIEW
SOP8
1
8
4
5
TOP VIEW
SOP8
TOP VIEW
FIN
1
3
2
4 5
TO252-5
TOP VIEW
1
3
2
4 5
TO252-5
TOP VIEW
1
3
2
TO252-3
FIN
FIN
N.C. pins are electrically open to the inside of the IC chip.
Driver
Driver
Driver
Driver
Driver
OCP
OCP
OCP
OCP
OCP
TSD
TSD
TSD
TSD
TSD
Vref
Vref
Vref
Vref
Vref
GND(FIN)
GND(FIN)
GND(7PIN)
GND(6PIN)
CTL (5PIN)
Vcc(8PIN)
1μF
R1
R2
OUT(1PIN)
N.C.(3PIN)
N.C.(3PIN) N.C.(4IN)
1μF
GND(7PIN)
GND(6PIN)
CTL (5PIN)
Vcc(8PIN)
1μF
OUT(1PIN)
N.C.(3PIN) N.C.(4IN)
1μF
ADJ(2PIN)
R1
R2
OUT (4PIN)
R1
R2
ADJ(5PIN)
N.C.(3PIN)
Vcc (2PIN)
CTL (1PIN)
R2
R1
R2
R1
OUT (4PIN)
N.C.(3PIN)
Vcc (2PIN)
CTL (1PIN)
N.C.(5PIN)
1μF
1μF
1μF
1μF
1μF
1μF
OUT (3PIN)
N.C.(2PIN)
Vcc (1PIN)
Fig.13
Fig.14
Fig.15
TO252-5(BD00KA5WFP)
[BD00KA5WFP]
Output voltage configuration
VOUT=VADJ×(R1+R2)÷R1(V)
VADJ=0.75V(Typ.)
A value of approximately 30kΩ
is recommended for R1.
TO252-5(BD□□KA5WFP)
[BD□□KA5WFP]
TO252-5(BD□□KA5FP)
SOP8(BD00KA5WF)
[BD00KA5WF]
SOP8(BD□□KA5WF)
[BD□□KA5WF]
Output voltage configuration
VOUT=VADJ×(R1+R2)÷R1(V)
VADJ=0.75V(Typ.)
A value of approximately 30kΩ
is recommended for R1.
Fig.16
Fig.17


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