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DC/DC Converters for LCD/OLED/CCD

Step-up DC/DC Controllers

These products are suitable for the power management of LCDs, OLEDs and CCDs. 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.
Product Name Control Input Voltage Range Output Voltage Range Voltage Accuracy*1 Switching
Frequency
Output Tr. Lx Current Limit*2 Protection
Circuit
Type
Other Features? Package Data Sheet
(PDF)
R1211x PWM 2.5V to 6.0V Ext. adjustable ±15mV 300kHz : xxxA/B External N Latch Soft-Start UVLO
Phase : Ext., xxxA/C
Phase : Int., xxxB/D, With stand-by.
SON-6
SOT-23-6W
Download
700kHz : xxxC/D
R1212D PWM 2.2V to 5.5V Ext. adjustable ±15mV 300kHz : xxxC External N Latch Soft-Start : Ext.Adjustable
UVLO
Phase : Ext.
Maxduty : Ext.Adjustable
SON-8 Download
700kHz : xxxA
1.4MHz : xxxB
R1215D PWM 1.8V to 5.5V Ext. adjustable ±15mV 700kHz : xxxA/E External N Latch Soft-Start : Ext.Adjustable
UVLO
Phase : Ext.
Maxduty : Ext.Adjustable
SON-8 Download
1.4MHz : xxxB/F
  • *1For the externally adjustable output voltage type, this is a feedback voltage accuracy.
  • *2Lx current limit is different from output current.

*

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Distributors

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Technical Info.

  • Application Note

    Technical Information on Ricoh Power Management ICs.

Product Catalog

  • Product Catalog

    Selection guide is available for download in PDF format.

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