Multi Power Supply DC/DC Converter
- Lineup in order of Input Voltage and Function
- Step-up
- Step-down
- Multi Power Supply
- For LCD/OLED/CCD
- Step-up with VD and VR
- Step-down with VD and VR
- Step-up and Inverting
- Step-up and Charge pump/ Amplifier
Step-down DC/DC Converters with VD and VR Lineup
| Product Name |
Control | Input Voltage Range | Output Voltage Range | Voltage Accuracy | Frequency | Output Tr. |
Output Current*1 | UVLO | Soft Start | Protection Circuit | Features, Remarks | Package | Data Sheet (PDF) |
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R5220x | PWM | 2.8V to 5.5V | 1.0V to 3.3V | ±2% | 1.2MHz | Internal | 400mA (at DC/DC) 50mA (at VR) |
 |
|
Latch type | Synchronous Rectifier Built-in DC/DC and VR alternative circuit. |
DFN(PLP)2514-6 SON-6 |
 |
| RP901K | PWM, PWM/VFM Auto switching |
4.5V to 5.5V | 1.2V to 1.8V (DC/DC) |
±2% | 1.2MHz | Internal | 800mA (A/B/C) 900mA (D) |
|
|
Reset type | Synchronous Rectifier Built-in VD and VR. For DVD drive. |
DFN(PLP)2527-10 | (1.06MB) |
| 2.5V to 3.3V (VR) |
±1% | 600mA | |||||||||||
| 2.0V to 3.0V (VD) (A) 3.0V to 5.0V (VD) (B/C/D) |
±2% | - | |||||||||||
| RP904Z | PWM/VFM Manual switching |
2.5V to 5.5V | 1.2V to 3.3V (DC/DC1) |
±2% | 2MHz | Internal | 1A | |
|
Latch type | Synchronous Rectifier Built-in Bypass switch. Output Voltage selectable from DC/DC1 or DC/DC2. |
WLCSP-11-P2 | |
| 1.0V to 1.5V (DC/DC2) |
±30mV |
- *1When the output voltage is adjusted by external resistors, the value means the feedback voltage accuracy.
- *2Lx current limit is different from output current.
- *All PDF files are less than 1MB unless otherwise stated.
- *If you don't have Adobe Reader, you can download free.
- Lineup in order of Input Voltage and Function |
- Step-up |
- Step-down |
- Multi Power Supply |
- For LCD/OLED/CCD
Support/ Technical Information
- Technical Support
Contact Us
- Buy Products / Order Sample
Ricoh semiconductor products are available at those dealers.
Technical Info.
-
Technical Information on Ricoh Power Management ICs.
Product Catalog
-
Selection guide is available for download in PDF format.
