Selection Guide 2013 - Ricoh

Power Management ICs (DC/DC Converter)
New : Under Development :
DC/DC Converters Lineup in order of Input Voltage and Function
Major products are classified by input voltage and function. This chart does not include all products.
40V
1.2A output R1245x For PMOLED, General Use R1204xxxxB/C/E/F
R1204xxxxA/D
High voltage 2A output
R1243x For white LED (External diode)
R1204xxxxG/H
20V
Middle voltage
6V
Low voltage
3A output
18.5V, Reset Protection
18.5V, Latch Protection
600mA output
600mA output,
VOUT Ext.adjjustable
600mA output, 6MHz
1A output
2A output
1A dual output
R1242S
R1270S
R1224N
R1225N
RP504x
RP507K
RP508K
RP505K
RP506K
RP550K
For white LED (External diode),
4 strings
For white LED (Internal diode)
For white LED (External diode)
For PMOLED, General Use
For General Use
For General Use
For General Use,
Synchronous Rectifier
For General Use
R1208K
R1202xxxxD
R1203x071B
R1206N071B
R1202xxxxA/B
R1213K001B
RP401x
RP402x
R1213K001A
Step-up and Inverting
Step-up and Charge pump
Step-up, LDO and Amplifier
Step-up and Inverting
Step-up, LDO and VD
R1283K
R1290K
R1293K
R1286K
RP600K
Step-down Step-up Multi Power Supply
High voltage Step-down DC/DC Converters Lineup
These products are high voltage step-down DC/DC converters. These products include an under-voltage lockout circuit (UVLO), a soft-start circuit and a
thermal shutdown circuit.
The products highlighted in purple rows are major products that are shown in the "DC/DC Converters Lineup in order of Input Voltage and Function".
• Products partially available for automotive applications. Products for automotive applications may not provide all specifications of products for
consumer applications. Please refer to the "CAR ELECTRONICS PRODUCTS Catalog" for additional details.
Product
Name
R1240x
00xA
00xB
Version
Control
Input Voltage
Range
PWM 4.5V to 30.0V
R1244N 001B PWM 4.5V to 30.0V
R1245x
R1243x
R1242S
R1270S
00xA/C/E/G
•
00xB/D/F/H
001A/C
001B/D
001A/C/E/G
001B/D/F/H
001A
•
001B
PWM 4.5V to 30.0V
PWM 4.5V to 30.0V
PWM 5.0V to 30.0V
PWM,
PWM/VFM
Auto Switching
3.6V to 34.0V
Output Voltage
Range
Ext. adjustable between
0.8V and 15.0V
Ext. adjustable between
0.8V and 15.0V
Ext. adjustable between
0.8V and 27.6V
(A to D)
Ext. adjustable between
0.8V and 18.0V
Ext. adjustable between
0.8V and 15.0V
Ext. adjustable between
0.8V and 28.0V
(at 300kHz, VIN=34.0V)
Output Protection
Frequency
Rectifier
Current *1 Circuit
Latch type
±12mV 1.25MHz 1.2A
Diode Rectifier
Fold-back type
VFB Voltage
Accuracy
Package
SOT-23-6W *2
DFN(PLP)2527-10
±12mV 1.25MHz 1.2A Fold-back type Diode Rectifier SOT-23-6W *2
±8mV
±7mV
±12mV
±8mV
330kHz (A/B)
500kHz (C/D)
1MHz (E/F)
2.4MHz (G/H)
330kHz (C/D)
1MHz (A/B)
330kHz (C/D)
500kHz (E/F)
1MHz (G/H)
Ext. adjustable between
330kHz to 1MHz (A/B)
Ext. adjustable between
300kHz to 2.4MHz
(Built-in PLL)
1.2A
2A
3A
3A
Latch type
DFN(PLP)2020-8
DFN2020-8
Diode Rectifier
*3
SOT-23-6W
Fold-back type
HSOP-8E
Latch type
DFN(PLP)2527-10
Diode Rectifier
Fold-back type
HSOP-8E
Latch type Synchronous
Rectifier
HSOP-8E
(with external
Fold-back type low side transistor)
Latch type
Fold-back type
Diode Rectifier
HSOP-18P
*1) This is an approximate value, because output current depends on conditions and external parts. *2) The pin-layout of R1240N and that of R1244N is upside down.
*3) R1245L (DFN2020-8) : Only for automotive applications.
Middle voltage Step-down DC/DC Controllers Lineup
These products are middle voltage step-down DC/DC controllers with an external output transistor. These products include a soft-start circuit and an undervoltage
lockout circuit (UVLO). (R1223N doesn't include a UVLO.)
The products highlighted in green rows are major products that are shown in the "DC/DC Converters Lineup in order of Input Voltage and Function".
Product
Input Voltage Output Voltage Voltage
Protection
Version Control
Frequency Output Tr. Output Current
Name
Range
Range
Accuracy *1 Circuit
Package
xx2A/B PWM/VFM Auto switching
300kHz
Latch type
xx2C/D
PWM
(A/C/E/G)
Depends on
R1223N
2.3V to 13.2V 1.5V to 5.0V ±2%
External
xx2E/F PWM/VFM Auto switching
500kHz
external MOSFET.
(B/D/F/H)
Reset type
xx2G/H
PWM
SOT-23-5
xx2E/F/L PWM/VFM Auto switching
1.2V to 6.0V
180kHz (L/M)
xx2G/H/M
Depends on
R1224N
2.3V to 18.5V
±2% 300kHz (E/G) External
PWM
Ext. adjustable between
external MOSFET.
102G/H/M
500kHz (F/H)
1.0V to VIN
Reset type SOT-23-5
R1225N xx2C/D/K PWM 180kHz (J/K)
Depends on
2.3V to 18.5V 1.2V to 6.0V ±2% 300kHz (A/C) External
xx2A/B/J PWM/VFM Auto switching
external MOSFET.
500kHz (B/D)
Latch type SOT-23-6W
*1) When the output voltage is adjusted by external resistors, the value means the feedback voltage accuracy.