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DCDC Converters

High Voltage Step-down DCDC Converters

Product
Name
Class AEC-
Q100
Operating
Temp.
Range
Control Input Voltage
Range
(Absolute Max.)
Output Voltage Range Frequency Output
Current *1
Protection
Circuit
Remarks Package Datasheet
R1245 J,A Compliant -40 to
105°C
PWM 4.5V to 30.0V
(32.0V)
Ext. adjustable
(0.8V to 27.3V)
330 kHz,
500 kHz,
1 MHz,
2.4 MHz
1.2A Latch type, Fold back type Diode Rectifier
SoftUVLOThermal
HSOP-8E Automotive
A   DFN2020-8
R1270 K,A Compliant -40 to
125°C
PWM,
PWM/VFM Auto Switching
3.6V to 34.0V
(36.0V)
Ext. adjustable
(0.8V to 31.6V)
Ext. adjustable:
300 kHz to 2.4 MHz

synchronized externally by PLL
3A Fold back type
(With Latch type )
Diode Rectifier
FLG Output
Soft: Ext. Adjustable
UVLO OVLO Thermal
HSOP-18 Automotive
Design guide
R1272 A   -40 to
125°C
Forced PWM,
PWM/VFM Auto Switching
4.0V to 34.0V
(36.0V)
Ext. adjustable
(0.7V to 5.3V)
250 kHz to 1 MHz

synchronized externally by PLL
External Latch type
or
Hiccup type
(Reset type)
Synchronous Rectifier
SSCG
Soft: Ext. Adjustable
UVLOOVPThermalPG
HSOP-18 Automotive

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Low Voltage Step-down DCDC Converters

Product
Name
Class AEC-
Q100
Operating
Temp.
Range
Control Input Voltage
Range
(Absolute Max.)
Output Voltage Range Frequency Output
Current *1
Protection
Circuit
Remarks Package Datasheet
NEW
RP506
A Compliant -40 to
105°C
Forced PWM,
PWM/VFM Auto Switching
2.5V to 5.5V
(6.5V)
0.8 V, 1.0 V, 1.1 V, 1.2 V, 1.3 V, 1.5 V, 1.8 V, 1.85 V, 3.0 V, 3.3 V 1.2MHz,
2.3MHz
2A Latch type Synchronous Rectifier
Soft: Ext. Adjustable
UVLO ThermalPG
DFN3030-12 Automotive
Ext. adjustable
(0.6V to 4.0V)

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PWM Step-up DCDC Converters Lineup For LCD/ OLED/ CCD

Product
Name
Class AEC-
Q100
Operating
Temp.
Range
Input Voltage Range
(Absolute Max.)
Output Voltage Range Frequency Output Tr. Protection
Circuit
Remarks Package Datasheet
R1211 A   -40 to 85°C 2.5V to 6.0V
(6.5V)
Ext. adjustable 700kHz,
300kHz
External Latch type Int. phase compensation.
With stand-by.
SoftUVLO
SOT-23-6W Automotive

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Step-up and Charge pump DCDC Converters Lineup For LCD/ OLED/ CCD

Product
Name
Class AEC-
Q100
Operating
Temp.
Range
Input Voltage Range
(Absolute Max.)
Frequency Control Output Voltage Range Lx
Current
Limit*2
Remarks Package Datasheet
R1290 A   -40 to 105°C 2.0V to 5.5V: 101A,
2.5V to 5.5V: 102A,
3.3V to 5.5V: 103A
(6.5V)
Ext. adjustable:
180 kHz to 1.4 MHz
PWM
(Step-up)
Up to 20.0V,
Ext. adjustable
2A The charge pump operates at 1/4th operating frequency.
Soft: Ext. Adjustable
Sequence UVLO
QFN0404-24 Automotive
Charge pump
(Positive)
Ext. adjustable -
Charge pump
(Negative)
Ext. adjustable -
NEW
R1294
A   -40 to 105°C 2.0V to 5.5V: 101A,
2.5V to 5.5V: 102A,
3.3V to 5.5V: 103A
(6.5V)
Ext. adjustable:
210 kHz to 1.4 MHz
(800 kHz -10%/+14%)
PWM
(Step-up)
Up to 20.0V,
Ext. adjustable
2A The charge pump operates at 1/4th operating frequency.
Soft: Ext. Adjustable
Sequence UVLO
QFN0404-24B Automotive
Charge pump
(Positive)
Ext. adjustable -
Charge pump
(Negative)
Ext. adjustable -

Soft : Soft Start circuit   Thermal : Thermal Shutdown circuit   Sequence : Start-up Sequencing Control   UVLO : Under Voltage Lockout circuit   OVLO : Over Voltage Lockout function   OVP : Overvoltage Protection circuit   PG : Power Good function

  • *1This is an approximate value, because output current depends on conditions and external parts.
  • *2Lx current limit is different from output current.

AEC-Q100

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[ Automotive Class ]
Ricoh provides three classes of automotive products corresponding to required quality level.

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