The R1275 is a 36-V synchronous step-down DC/DC converter with built-in drivers. It is designed for industrial equipment, OA equipment and home electronics that require a 24-V input.
It operates at a 2-MHz switching frequency, which allows to use a small inductor to ensure a high transient response and to maintain a high efficiency at heavy load condition. Using a spread spectrum clock generator, the EMI noise can be reduced.
Under cranking condition, the switching frequency is automatically reduced to keep output voltage level constant.
- Provides a high switching frequency at 2 MHz with an efficiency of 87%.
- Maintains the output voltage constant by reducing a switching frequency to the minimum 1/4 when an input-output voltage difference is small.
- Achieves the EMI noise reduction by using a spread spectrum clock generator. (Diffusion Rate: +8%).