Step-up DC/DC Converter

Step-up DC/DC Converters (General use)

Product Name Ver. Control Input Voltage Range Output Voltage Range Voltage
Accuracy *1
Frequency Output
Tr.
Lx Current Limit*2 Protection
Circuit
Other Features? 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 xx1A/C/D PWM 0.9V to 8.0V 2.2V to 6.0V: xxxC/D
2.2V to 3.5 V: xx1A
±2.5% 100kHz:
xxxA/C
180kHz:
xxxD
Internal - - xx1A: With frequency
change-over circuit.
Soft-Start*3
SOT-23-5 Download -
R1210N xx2C/D 0.8V to 8.0V External Download -
R1213K 001A PWM 2.3V to 5.5V 3.0V to 6.0V,
Ext. Adjustable
±8mV 1MHz Internal 3A Latch Phase : External
Shutdown : FLAG pin
Soft-Start : Ext. Adjustable
UVLO
Thermal
DFN(PLP)
2730-12
Download Download
001B 6.0V to 15.0V,
Ext. Adjustable
RP400x xx1A PWM/VFM
Auto Switching
0.7V to 5.5V 1.8V to 5.0V
or
1.8V to 5.0V,
Ext. adjustable
(only DFN)
±2% 700kHz Internal 600mA *4 - Soft-Start
Anti-ringing
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 Soft-Start
P<=>P/V : MODE pin, xx1A/xx1B
DFN(PLP)
1820-6
Download Download
xx1B -
xx1C PWM/VFM
Auto Switching
1.8V to 5.5V
or
1.8V to 5.5V,
Ext. Adjustable
(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
1.8V to 5.5V,
Ext.
Adjustable
±1.5% 1.2MHz Internal 1.5A*4 Latch
  • Synchro
  • Soft-Start OVP OVLO
  • Anti-ringing : xx1/001
  • P<=>P/V : MODE pin,
    xx1A/B/C/D, 001A/B/C/D
  • Regulation available at VIN>VOUT.
  • Reverse current protection at VIN=0V or open.
  • Input and output cut off completely at standby.: xxxA/B/E/F
  • Input and output bypass at standby.: xxxC/D/G/H
DFN(PLP)
2020-8
Download
3.12MB
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
xx1F/H -
Product Name Ver. Control Input Voltage Range Output Voltage Range Voltage
Accuracy *1
Frequency Output
Tr.
Lx Current Limit*2 Protection
Circuit
Features, Remarks Package Data Sheet
(PDF)
Design
Guide
(PDF)
  • *1For the externally adjustable output voltage type, this is a feedback voltage accuracy.
  • *2Lx current limit is different from output current.
  • *3Soft-start includes a function that detects a sudden fluctuation of voltage to prevent overshoot and undershoot.
  • *4Lx current limit fluctuates depending on Duty.

*

  • Buy Products / Order Sample

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.

Page Top