DC/DC Converters for LCD/OLED/CCD
- Lineup in order of Input Voltage and Function
- Step-up
- Step-down
- Multi Power Supply
- For LCD/OLED/CCD
Step-up and Inverting
These products are suitable for the power management of LCD, OLED and CCD. Many variations are available such as step-up DC/DC controller, step-up and step-down dual output converter and step-up and positive / negative charge pump triple output converter.
These products include an under-voltage lockout circuit (UVLO), and a latch type protection circuit. The products with a built-in the sequence control circuit option are able to control a start-up sequence and a shutdown sequence.
The products highlighted in blue rows are major products that are shown in the "DC/DC Converters Lineup in order of Input Voltage and Function".
For technical terms on the list, please refer to "Application Note".
These products include an under-voltage lockout circuit (UVLO), and a latch type protection circuit. The products with a built-in the sequence control circuit option are able to control a start-up sequence and a shutdown sequence.
The products highlighted in blue rows are major products that are shown in the "DC/DC Converters Lineup in order of Input Voltage and Function".
For technical terms on the list, please refer to "Application Note".
| Product Name | Control | Input Voltage Range |
Output Voltage Range | Voltage Accuracy *1 |
Frequency | Output Tr. |
Lx Current Limit*2 |
Soft Start |
Timer Latch Delay Time |
Features, Remarks | Package | Data Sheet (PDF) |
Design Guide (PDF) |
|
|---|---|---|---|---|---|---|---|---|---|---|---|---|---|---|
| R1283K | PWM (Step-up) | 2.5V to 5.5V | Ext. adjustable up to 20.0V |
±1.5% | 300kHz 700kHz 1.4MHz |
Internal | 1.5A |  |
50ms | Discharge (Inverting output only) | DFN(PLP)2730-12 |  |
|
|
| PWM (Inverting) | Ext. adjustable up to VDD-20.0V |
±25mV | 1.5A | |||||||||||
| R1286K | 0xxx | PWM (Step-up) | 2.3V to 4.8V | 4.6V to 5.8V | ±0.9% | 1.75MHz | Internal | 1A | |
16ms | Synchronous Rectifier. Inverting output can be dynamically changed by single wire control. |
DFN(PLP)2730-12 | 1.40MB |
|
| PWM (Inverting) | -2.0V to -6.0V | ±70mV | 1.5A | |||||||||||
| 1xxx | PWM (Step-up) | 4.6V to 5.8V | ±0.9% | 1.1A | 40ms | |||||||||
| PWM (Inverting) | -2.0V to -6.0V | ±70mV | 1.8A | |||||||||||
| 001B | PWM (Step-up) | Ext. adjustable between 4.6V to 5.8V |
±15mV | 1A | 16ms | Synchronous Rectifier. |
||||||||
| PWM (Inverting) | Ext. adjustable between -2.0V to -6.0V |
±25mV | 1.5A | |||||||||||
- *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.
