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For Consumer Applications

Multi-channel DCDC Converters (Switching Regulators)

Ricoh offers a broad portfolio of DC/DC converters, from multi-channel to LDO or VD integrated. Ricoh’s multi-channel DC/DC converters include the features of 2-channel step-up/inverting and 3-channel step-up/charge pump. Ricoh’s sequence control equipped converters are capable of controlling the start-up/shut-down sequence of multiple power sources.

Step-up and Inverting DCDC Converters

Product Name CH VIN
min.[V]
VIN
max.[V]
VOUT
min.[V]
VOUT
max.[V]
Frequency
[kHz]
ILX
[A]*1
Features Package Datasheet
R1280 Step-up 2.5 5.5 - - 200,
700
- Controller
LCD/OLED/CCD
Ext. adjustable VOUT
SON-10 Consumer
Inverting
R1283 Step-up 2.5 5.5 - 20 300,
700,
1400
1.5 LCD/OLED/CCD
Ext. adjustable VOUT
Start-up Sequencing Control
DFN(PLP)2730-12 Consumer
Inverting - VDD-20
R1286 Step-up 2.3 5.5 4.6 5.8 1750 1.0,
1.1
LCD/OLED/CCD
Ext. adjustable VOUT (option)
Start-up Sequencing Control
DFN(PLP)2730-12 Consumer
Inverting -6.0 -2.0 1.5,
1.8
R1287 Step-up 2.5 5.5 4.5 5.8 300,
900,
1000
1.1 LCD/OLED/CCD
Ext. adjustable VOUT (option)
Start-up Sequencing Control
WLCSP-12-P1
DFN3030-12
Consumer
Inverting -6.0 -4.5 300,
1000,
1100
1.5
  • *1ILX (Lx current limit) is different from output current.

Step-up and Step-down DCDC Controllers

Product Name CH VIN
[V]
VOUT VFB
accuracy
[mV]
Frequency
[kHz]
Features Package Datasheet
R1282 Step-up 2.5 to 5.5 Ext.adjustable 1.0V±15 700 Controller
LCD/OLED/CCD
Ext. adjustable VOUT
SON-10 Consumer
Step-down

Step-up and Charge Pump DCDC Converters

Product Name CH VIN
[V]
VOUT
[V]
Frequency
[kHz]
ILX
[A]*1
Features Package Datasheet
R1293 DCDC, Step-up 2.2 to 5.5 Max. 16 300 to 1000 3 LCD/OLED/CCD
Ext. adjustable VOUT
Ext. adjustable frequency
DCDC output with noise reduction function.
VCOM amplifier 1 channel,
GAMMA amplifier 6 channel.
QFN(PLP)0404-32 Consumer
LDO 1.8 to 2.5 IOUT=
350mA
Amplifier 5.0 to 16.0 - -
R1290 DCDC, Step-up 2.0 to 5.5,
2.5 to 5.5,
3.3 to 5.5
Max. 20.0 180 to 1400 2 LCD/OLED/CCD
Ext. adjustable VOUT
Ext. adjustable frequency
The charge pump operates at 1/4th operating frequency.
Start-up Sequencing Control
QFN0404-24 Consumer
Charge pump, Positive Ext. adjustable -
Charge pump, Negative
R1294 DCDC, Step-up 2.0 to 5.5,
2.5 to 5.5,
3.3 to 5.5
Max. 20.0 210 to 1400
(800±8%)
2 LCD/OLED/CCD
Ext. adjustable VOUT
Ext. adjustable frequency
The charge pump operates at 1/4th operating frequency.
Start-up Sequencing Control
QFN0404-24B Consumer
Charge pump, Positive Ext. adjustable -
Charge pump, Negative
  • *1ILX (Lx current limit) is different from output current.

Step-up DCDC Converters with VD and LDO

Product Name CH VIN
min.[V]
VIN
max.[V]
VOUT
min.[V]
VOUT
max.[V]
Frequency
[MHz]
ILX
[A]
IOUT
[mA]
Features Package Datasheet
RP600 DCDC 0.8 5.5 2.3 5.5 1.2 1.4 - Ext. adjustable VOUT (option)
Detector Threshold: 1.0 to 4.5 V
Start-up Sequencing Control
DFN(PLP)2527-10 Consumer
LDO 2.0 5.5 1.5 5.0 - 150
300
500
VD 0.8 5.5 - - - -

Step-down DCDC Converters with VD and LDO

Product Name CH VIN
min.[V]
VIN
max.[V]
VOUT
min.[V]
VOUT
max.[V]
Frequency
[MHz]
IOUT
[mA]*1
Features Package Datasheet
R5220 DCDC 2.8 5.5 1.0 3.3 1.2 400 Built-in DCDC and LDO Alternative Circuit DFN(PLP)2514-6 Consumer
LDO 50
RP901 DCDC 4.5 5.5 1.2 1.8 1.2 800, 900 For DVD drive
Start-up Sequencing Control
DFN(PLP)2527-10 Consumer
LDO 2.5 3.3 600
VD 2.0 5.0 -
  • *1Output Current (IOUT) can be affected by environmental conditions or external components. This is an approximate value.

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