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R1211D103C Datasheet(PDF) 8 Page - RICOH electronics devices division

Part # R1211D103C
Description  STEP-UP DC/DC CONTROLLER
PDF  40 Pages
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Manufacturer  RICOH [RICOH electronics devices division]
Direct Link  http://www.ricoh.com
Logo RICOH - RICOH electronics devices division

R1211D103C Datasheet(HTML) 8 Page - RICOH electronics devices division

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R1211x
8
TYPICAL APPLICATIONS AND TECHNICAL NOTES
<R1211x002A/R1211x002C>
VIN
DELAY
GND
EXT
VFB
AMPOUT
Inductor
R3
C4
C3
R1
R2
VOUT
Diode
NMOS
C1
C2
C5 R4
NMOS
: IRF7601 (International Rectifier)
Inductor : LDR655312T-100 10
µH (TDK) for R1211x002A
: LDR655312T-220 22
µH (TDK) for R1211x002C
Diode
: CRS02 (Toshiba)
C1 : 4.7
µF (Ceramic)
C2 : 0.22
µF (Ceramic)
C3 : 10
µF (Ceramic)
C4 : 680pF (Ceramic)
C5 : 2200pF (Ceramic)
R1 : Output Voltage Setting Resistor 1
R2 : Output Voltage Setting Resistor 2
R3 : 30k
Ω
R4 : 30k
Ω
<R1211x002B/R1211x002D>
VIN
DELAY
GND
EXT
VFB
CE
Inductor
R3
C4
C3
R1
R2
VOUT
Diode
NMOS
C1
C2
CE Control
NMOS
: IRF7601 (International Rectifier)
Inductor : LDR655312T-100 10
µH (TDK) for R1211x002B
: LDR655312T-220 22
µH (TDK) for R1211x002D
Diode
: CRS02 (Toshiba)
C1 : 4.7
µF (Ceramic)
C2 : 0.22
µF (Ceramic)
C3 : 10
µF (Ceramic)
C4 : 680pF (Ceramic)
R1 : Setting Output Voltage Resistor 1
R2 : Setting Output Voltage Resistor 2
R3 : 30k
Ω
[Note]
These example circuits may be applied to the output voltage requirement is 15V or less. If the output voltage
requirement is 15V or more, ratings of NMOS and diode as shown above is over the limit, therefore, choose
other external components.



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