Ricoh Electronic Devices has launched a high-voltage buck DC/DC controller series with a wide input voltage range of 5.0 V to 60 V and maximum rating of 80 V. The R1260 Series is optimized for use in automotive and industrial applications and its output voltage is externally configurable in the range of 1.0 V to 16.0 V. Due to its high operating voltage up to 60 V, it can directly step down such a high voltage to a source voltage for devices used in automotive and industrial applications such as an MCU, an SoC, and sensors.
The R1260 series is a controller-type IC, which requires an external FET, so you can choose an optimal FET according to the usage. Besides, to convert a voltage efficiently even at light load, the IC has a function to switch VFM (Variable Frequency Modulation) and PWM (Pulse Width Modulation) modes according to load current which enables the IC and systems to achieve high-efficiency operation at both heavy and light load conditions.
The Series features a spread spectrum clock generator (SSCG) which suppresses the peak of radiation noise will help reduce the risk of failing to pass EMI testing and the number of components for EMI countermeasures. Moreover, for use with safety and security, the IC includes various functional mechanisms such as under- and over-voltage protections, under-voltage lockout, and thermal shutdown functions.
The R1260 Series will be manufactured in Yashiro Plant (Kato City, Hyogo Prefecture). The new IC adopts lead-pin-type, easy-to-mount HSOP-18 package. In addition, it is going to be an applicable product of our Product Longevity Program, which maintains the product supply for at least 10 years. You can use the R1260 series for a long time without EOL concerns.
