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For Consumer Applications

Step-up DCDC Converters (Switching Regulators)

Ricoh offers a wide selection of PWM controlled step-up DC/DC converters optimized for constant current driving of white LEDs and PMOLEDs. Ricoh’s DC/DC converters include various types of protection features including undervoltage-lockout (UVLO) and soft-start circuit.

* You can use the filter operators. ( < ,<=, >, >= )

Product Name VIN
min.[V]
VIN
max.[V]
VOUT
min.[V]
VOUT
max.[V]
Frequency
[kHz]
ILX
[mA]*1
Features Package Datasheet
R1208 2.7 22.0 - 42 450,
750
2000 LED4 strings
Ext. diode
Ext. adjustable VOUT
DFN(PLP)2730-12 Consumer
RN5RK 0.7 8.0 2.0 5.5 MAX. 100 200
Ext.
  SOT-23-5 Consumer
R1210 0.8 8.0 2.2 6.0 100,
180
190
Ext.
  SOT-23-5 Consumer(xx1x)
Consumer(xx2x)
R1213 2.3 5.5 3.0 15.0 1000 3000 Ext. adjustable VOUT DFN(PLP)2730-12 Consumer
R1214 2.7 5.5 - 29 450,
750
1900 LED2 strings
Ext. diode
Ext. adjustable VOUT
WLCSP-9-P1 Consumer
RP401 0.6 5.5 1.8 5.5 1200 1000*3 Ext. adjustable VOUT (option) DFN(PLP)1820-6
SOT-23-5
Consumer
R1204 2.3 5.5 - 40.2 750,
1000
900 LED
PMOLED
Ext. diode
Ext. adjustable VOUT
DFN(PLP)1820-6
TSOT-23-6
Consumer
R1218 1.8 5.5 - 30 1200 700 LED
Ext. diode
Ext. adjustable VOUT
SOT-23-6 Consumer
R1203 1.8 5.5 - 28.7 1200 700 LED
Ext. diode
Ext. adjustable VOUT
DFN1616-6B
SOT-23-6*4
Consumer
R1206 1.8 5.5 - 28.7 1200 700 LED
Ext. diode
Ext. adjustable VOUT
SOT-23-6*4 Consumer
R1205 1.8 5.5 - 24.2 1200 350
700
LED
PMOLED
Ext. adjustable VOUT
DFN1616-6B
TSOT-23-6*4
Consumer
R1207 1.8 5.5 - 24.2 1200 350
700
LED
PMOLED
Ext. adjustable VOUT
TSOT-23-6*4 Consumer
R1202 1.8 5.5 - 22.2 1200 350
700
LED
PMOLED
Ext. adjustable VOUT
DFN1616-6B
TSOT-23-6
Consumer
R1200 2.3 5.5 - 20 1200 700 LED
PMOLED
Ext. adjustable VOUT
DFN1616-6
DFN(PLP)1820-6
SOT-23-6
Consumer
RP400 0.7 5.5 1.8 5.0 700 600*3 Ext. adjustable VOUT (option) DFN(PLP)1820-6
SOT-23-5
Consumer(xx1A)
Consumer(xx1B)
Consumer(xx1C)
RP402 0.6 4.8 1.8 5.5 1000,
1200
1500*3 Ext. adjustable VOUT (option) DFN(PLP)2020-8
SOT-23-5
Consumer
R1211 - 2.5 6 - - 300
700
Controller
LCD/OLED/CCD
Ext. adjustable VOUT
SON-6
SOT-23-6W
Consumer
R1212 - 2.2 5.5 - - 300
700
1400
Controller
LCD/OLED/CCD
Ext. adjustable VOUT
SON-8 Consumer
R1215 - 1.8 5.5 - - 700
1400
Controller
LCD/OLED/CCD
Ext. adjustable VOUT
SON-8 Consumer
  • *1ILX (Lx current limit) is different from output current.
  • *2Soft-start includes a function that detects a sudden fluctuation of voltage to prevent overshoot and undershoot.
  • *3ILX fluctuates depending on Duty.
  • *4The pin-layout of R1205N and that of R1207N are different by 180 degrees. Also, the pin-layout of R1203N and that of R1206N are different by 180 degrees.

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