Torex Semiconductor Co., Ltd. (Managing Director, Chuo-ku, Tokyo, Japan: Koji Shimiya Daiichi Tokyo Stock Exchange: 6616, hereinafter referred to as "Torex") has developed a driver (AEC-Q100 compatible) for in-vehicle 18V operation with Tr built-in , output current 500mA, synchronous rectification step-down DC/DC converter XD9263/XD9264 series.

In recent years, the number of in-vehicle cameras corresponding to sensing and viewing applications in cars is increasing due to improvements in ADAS (Advanced Driver Support Systems) and autonomous driving. The need to reduce current consumption and save space in camera modules also follows. The XD9263/XD9264 series developed this time are 18V operation, 500mA output current, synchronous rectification step-down DC/DC converters, built-in driver Tr, which can meet the above market demands, and are the most suitable power IC modules for automotive cameras.

The input voltage range of this product is 3.0V~18.0V, which can correspond to the voltage provided by ECUs such as navigation. The output voltage range is 1.0V ~ 15.0V (accuracy ±1.5%), and the operating frequency is 2.2MHz.
The control method can choose PWM control (XD9263) and PWM/PFM automatic switching control (XD9264) to achieve high efficiency and low ripple voltage in the entire load range from light load to heavy load.
The soft-start function has been internally set to 1.0ms (TYP.) and can also be arbitrarily adjusted by external resistors and capacitors. Protection features include overcurrent limit, auto-reset (XD9263D/XD9264D), integrated latch-off (XD9263C/XD9264C), and thermal shutdown. The status of the output voltage can also be monitored through the Power Good function, and the output voltage sequence can be controlled in combination with the soft-start function. Leaded package SOT-25 and small package USP-6C (1.8 x 2.0 x h0.6 mm) are available depending on the application. This product is qualified to the automotive IC quality standard AEC-Q100 Grade 2 (105°C), and PPAP files are available upon customer request, so you can use this product for automotive applications with confidence.