AEC-Q100 (Grade2) Compliant, 600mA synchronous step-down DC/DC converters with an internal 36V operation driver transistor Expanded Lineup XD9267/XD9268 Series


Torex Semiconductor Ltd. has launched the XD9267/XD9268 Series of AEC-Q100 Compliant, 600mA synchronous step-down DC/DC converters with an internal 36V -operation driver transistor.

With the increased use of electronic components in automobiles in recent years, a shift from LDO to DC/DC has begun to reduce electrical power consumption. Further, the increasing need to reduce the space used is expanding the demand for small packages. The newly developed XD9267/XD9268 Series 600mA synchronous step-down DC/DC converters with an internal 36V operation driver transistor are power supply ICs that meet the needs of this market.

The input voltage range is 3.0V to 36.0V (absolute maximum rating 40V), the output voltage range is 1.0V to 25.0V, and the oscillation frequency is 2.2MHz. For the operation mode, PWM control (XD9267) or PWM/PFM automatic switching control (XD9268) can be selected to achieve high efficiency and a low ripple voltage over a wide load range from light to heavy loads. Switching from a regulator to the light load (1mA) efficiency of 82% and the world’s smallest 36V synchronous step-down DC/DC converter means greatly improving efficiency by half and significantly reducing the mounted surface area by 50%.(Fig.1)

The soft-start time is internally set to 2.0ms (TYP.), but can be adjusted to set a longer time using resistor and capacitor. Over-current limiting, UVLO, and thermal shutdown are available as internal protective functions. In addition, the output state can be monitored using the power good function.

The SOT-89-5 package or the small USP-6C package (1.8 x 2.0 x h0.6mm) is optional to match the application.

Torex will continue to swiftly develop products that meet market needs and contribute to a richer and more abundant society.

For more details on XD9267, please click here:
For more details on XD9268, please click here:

Torex Semiconductor

Leave a Reply

Your email address will not be published. Required fields are marked *

  • We use your personal data ONLY to respond to your comments/requests.
  • To receive responses that are appropriate to your requests, we may transfer your email address and your name to the author of the article.
  • For more information on our Privacy Policy and Personal Data Processing, please visit the page: Privacy Policy (GDPR) & Cookies.
  • If you have any questions or concerns regarding the way we process your personal data, you can contact our Data Protection Officer at:
  • Subscribe to our magazine newsletter