Multi Power Supply DC/DC Converter

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)
R5220K 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 Download
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.
Thermal
DFN(PLP)2527-10 Download
(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% -
  • *1When the output voltage is adjusted by external resistors, the value means the feedback voltage accuracy.
  • *2Lx current limit is different from output current.

*

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Distributors

Ricoh semiconductor products are available at those dealers.

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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