Step-up DC/DC Converter

Step-up DC/DC Converters Lineup (General use)

The products highlighted in pink 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 Ver. Control Input Voltage Range Output Voltage Range Voltage
Accuracy *1
Frequency Output
Tr.
Lx Current Limit*2 Soft
Start
Protection
Circuit
Features, Remarks Package Data Sheet
(PDF)
Design
Guide
(PDF)
RN5RK xx1x VFM 0.75V to 8.0V 2.0V to 5.5V ±2.5% MAX.
100kHz
Internal -   - -   SOT-23-5 Download -
xx2A 0.7V to 8.0V External
R1210N xx1x PWM 0.9V to 8.0V 2.2V to 6.0V ±2.5% 100kHz
(A/C)
180kHz
(D)
Internal - Δ*3 - (xx1A) With frequency
change-over circuit.
(Output voltage range: 2.2V to 3.5V)
(R1210Nxx2A doesn't exist.)
SOT-23-5 Download -
R1210N xx2x 0.8V to 8.0V External Download -
R1213K 001A PWM 2.3V to 5.5V Ext. adjustable
between
3.0V to 6.0V
±8mV 1MHz Internal 2.5A *
(Ext. adjustable)
Latch
type
Ext. phase compensation.
Input to output path disconnected by external
P-channel MOSFET controlled by FLAG pin.
Built-in under-voltage lockout circuit. (UVLO)
Thermal
DFN(PLP)
2730-12
Download Download
001B Ext. adjustable
between
6.0V to 15.0V
RP400x xx1A PWM/VFM
Auto Switching
0.7V to 5.5V 1.8V to 5.0V
or Ext. adjustable
between
1.8V to 5.0V
(only DFN)
±2% 700kHz Internal 600mA *4 * - Built-in Anti-ringing switch. DFN(PLP)
1820-6

SOT-23-5
Download Download
RP400x xx1B Download
RP400x xx1C 1.2V to 5.5V Download
RP401x xx1A PWM,
PWM/VFM
Auto Switching
0.6V to 5.5V   1.8V to 5.5V ±2% 1.2MHz Internal 1A*4 * Latch
type
Selectable PWM or PWM/VFM auto switching mode by MODE pin. DFN(PLP)
1820-6
Download Download
xx1B -
xx1C PWM/VFM
Auto Switching
1.8V to 5.5V
or Ext. adjustable
between
1.8V to 5.5V
(only DFN)
-   DFN(PLP)
1820-6

SOT-23-5
xx1D PWM -  
RP402x xx1A/C PWM,
PWM/VFM
Auto Switching
0.6V to 4.8V
or
0.6V to 4.6V
(001)
1.8V to 5.5V
or
Ext.
adjustable
between
1.8V and 5.5V
±1.5% 1.2MHz Internal 1.5A*4 * Latch
type
  • Synchronous Rectifier.
  • Built-in anti-ringing switch.
  • Regulation available at VIN>VOUT.
  • Reverse current protection at VIN=0V or open.
  • Built-in Over-voltage lockout circuit (OVLO), Over Voltage Protection Circuit (OVP).
  • (A/B/E/F): Input and output cut off completely at standby.
  • (C/D/G/H): Input and output bypass at standby.
  • (xx1/001/A/B/C/D): Selectable PWM or PWM/VFM auto switching mode by MODE pin.
DFN(PLP)
2020-8
Download
1.65MB
Download
xx2A Forced PWM 1.0MHz
xx1B/D PWM,
PWM/VFM
Auto Switching
1.2MHz -
xx2B Forced PWM 1.0MHz
SOT-23-5
xx1E/G PWM/VFM
Auto Switching
0.6V to 4.8V 1.8V to 5.5V 1.2MHz Latch
type
xx1F/H -
Product Name Ver. Control Input Voltage Range Output Voltage Range Voltage
Accuracy *1
Frequency Output
Tr.
Lx Current Limit*2 Soft
Start
Protection
Circuit
Features, Remarks Package Data Sheet
(PDF)
Design
Guide
(PDF)
  • *1When the output voltage is adjusted by external resistors, the value means the feedback voltage accuracy.
  • *2Lx current limit is different from output current.
  • *3A function used to detect sudden peaks in output voltage and to reduce overshoot/undershoot.
  • *4Will change according to the duty cycle.

  • *All PDF files are less than 1MB unless otherwise stated.
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Technical Info.

  • Application Note

    Technical Information on Ricoh Power Management ICs.

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  • Product Catalog

    Selection guide is available for download in PDF format.

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