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R1211D103C Datasheet(PDF) 17 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) 17 Page - RICOH electronics devices division

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R1211x
17
∗UVLO Detector Threshold/
∗ CE "L" Input Current/"H" Input Current Test
Hysteresis Range Test
VIN
GND
EXT
CE
VFB
DELAY
OSCILLOSCOPE
VIN
GND
CE
VFB
DELAY
6V
A
0V/6V
∗CE "L" Input Voltage/"H" Input Voltage Test
VIN
GND
EXT
CE
VFB
DELAY
OSCILLOSCOPE
2.5V/6V
∗Soft-start Time Test
VIN
GND
EXT
CE
VFB
DELAY
Coil
C5
C2
OSCILLOSCOPE
0V/3.3V
R3
C1
R1
R2
Rout
VOUT
Diode
NMOS
C3
<Components>
Inductor (L)
: 22
µH (TDK LDR655312T-220)
Diode (SD)
: CRS02 (Toshiba)
Capacitors
C1 : 680pF (Ceramic), C2: 22
µF (Tantalum)+2.2µF (Ceramic),
C3 : 68
µF (Tantalum)+2.2µF (Ceramic), C5: 22µF (Tantalum)
NMOS Transistor
: IRF7601 (International Rectifier)
Resistors
: R1: 90k
Ω, R2: 10kΩ, R3: 30kΩ



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