AEC-Q100 qualified 40V regulators launched

An AEC-Q100 qualified family of 40V switching regulators from Exar has been launched for automotive applications, such as infotainment head units and advanced driver assistance systems.

The XR76203-Q, XR76205-Q and XR76208-Q are 3A/5A/8A synchronous step down regulators designed to provide a 5.5V to 40V input voltage range and an adjustable output voltage down to 0.6V.

According to the company, the XR76208-Q is the highest current, fully synchronous, 40V regulator on the market that offers AEC-Q100 qualification.

The family features the company's proprietary emulated current mode constant on-time control loop. It is said to provide fast transient response with ceramic output capacitors and line and load regulation while simplifying system design.

The DC/DC buck regulators also offer a host of supervisory and protection features for proper sequencing, safe operation under abnormal operating conditions and light load operation.

The family meets the AEC-Q100 qualification requirements for Temperature Grade 1 – ranging from -40 to 125°C – HBM ESD Class Level 2 and CDM ESD Class Level C4B.

In addition, the regulators are offered in a 5 x 5mm QFN with wettable flanks allowing for 100% automatic optical inspection of solder wetting post-assembly.