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R1211D103C Datasheet(PDF) 15 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) 15 Page - RICOH electronics devices division

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R1211x
15
∗DELAY Pin Detector Threshold Voltage Test
∗AMP "H" Output Current/"L"
Output Current Test
OSCILLOSCOPE
VIN
GND
EXT
VFB
DELAY
3.3V
VIN
GND
AMPOUT
VFB
DELAY
3.3V
A
0.9V/1.1V
1V
∗UVLO Detector Threshold/Hysteresis Range Test
OSCILLOSCOPE
VIN
GND
EXT
VFB
DELAY
∗Soft-start Time Test
VIN
GND
EXT
AMPOUT
VFB
DELAY
Coil
C5
C2
OSCILLOSCOPE
C4 R4
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), C4:2200pF(Ceramic), C5:22µF(Tantalum)
NMOS Transistor
: IRF7601 (International Rectifier)
Resistors
: R1: 90k
Ω, R2:10kΩ, R3:30kΩ, R4:30kΩ, Rout:1kΩ/330Ω



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