Skip to main content Skip to first level navigation

RICOH imagine. change.

RICOH ELECTRONIC DEVICES CO., LTD.

Skip to main content First level navigation Menu
Breadcrumbs
Main content

Step-down DC/DC Converter (High voltage)

Product
Name
Version Control Input
Voltage
Range
Output Voltage
Range
VFB
Voltage
Accuracy
Switching
Frequency
Output
Current
*1
Protection
Circuit Type
Other Features Package Data
Sheet
(PDF)
Design
Guide
(PDF)
R1240x 00xA PWM 4.5V to 30.0V 0.8V to 15.0V,
Ext. Adjustable
±12mV 1.25MHz 1.2A Latch Diode
UVLO
Soft-Start
Thermal
SOT-23-6W*2
DFN(PLP)
2527-10
DL DL
00xB Fold-back
R1244N 001B PWM 4.5V to 30.0V 0.8V to 15.0V,
Ext. Adjustable
±12mV 1.25MHz 1.2A Fold-back Diode
UVLO
Soft-Start
Thermal
SOT-23-6W*2 - -
R1245x
*
00xA/C/E/G PWM 4.5V to 30.0V 0.8V to 27.6V,
Ext. Adjustable
±8mV 330kHz: xxxA/B,
500kHz: xxxC/D,
1MHz: xxxE/F,
2.4MHz: xxxG/H
1.2A Latch Diode
UVLO
Soft-Start
Thermal
DFN(PLP)
2020-8

SOT-23-6W*2
HSOP-8E
DL
2.03MB
-
00xB/D/F/H Fold-back
R1243x 001A/C PWM 4.5V to 30.0V 0.8V to 18.0V,
Ext. Adjustable
±7mV 330kHz: xxxC/D,
1MHz: xxxA/B/E
2A Latch Diode
UVLO
Soft-Start
Thermal
DFN(PLP)
2020-8

DFN(PLP)
2527-10
DL
1.22MB
-
001B/D Fold-back
001E Latch HSOP-8E
R1242S 001A/C/E/G PWM 5.0V to 30.0V 0.8V to 15.0V,
Ext. Adjustable
±12mV 330kHz: xxxC/D,
500kHz: xxxE/F,
1MHz: xxxG/H,
330kHz to 1MHz: xxxA/B,
Ext. Adjustable
3A Latch Synchro: with external low side transistor
UVLO
Soft-Start
Thermal
HSOP-8E DL DL
001B/D/F/H Fold-back
R1270S
*
001A PWM,
PWM/VFM
Auto-Switching
3.6V to 34.0V 0.8V to 31.6V,
Ext. Adjustable
±8mV 300kHz to 2.4MHz:
Ext. Adjustable,
Ext. Synchronizable
with PLL Circuit
3A Fold-back
Latch
Diode
UVLO
Soft-Start
Thermal
HSOP-18 DL
2.92MB
DL
001B Fold-back
R1272S
*
xxxA Forced PWM,
PWM/VFM
Auto-Switching
4.0V to 34.0V 0.7V to 5.3V,
Ext. Adjustable
±1% 250kHz to 1MHz:
Ext. Adjustable,
Ext. Synchronizable
with PLL Circuit
Ext. Latch
or
Hiccup
Synchro
SSCG
PG UVLO
Soft-Start:
Ext. Adjustable
Thermal OVP
HSOP-18 DL
1.67MB
-
  • *: Products partially available for applications under a high temperature environment. For details, please refer to each product page or High Temperature Products.
  • *1Output Current (IOUT) can be affected by environmental conditions or external components. This is an approximate value.
  • *2The pin-layout of R1240N and that of R1244N is upside down.

Tap to see the table

Inquiry about products

Technical Support

Inquiries (SSL Form)

Inquiry about business

Purchase, Request for Samples and Documents

Ricoh provide device products for corporate/ Industries through our distributors. Please contact a local distributor in your region for any sales-related inquiries such as price, stock, and delivery date, etc.

Distributors

Sample Online

Ricoh open "Ricoh Web Sample Shop" in Chip One Stop. Buy samples of Power Management ICs and Real Time Clock ICs online.

chip1stop
RICOH Web Sample Shop