40V DC-DC Converters Enable Always-on Automotive Apps

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Maxim has launched new step-down DC-DC converters, MAX20075 and MAX20076, claiming the industry’s lowest quiescent current (IQ) and offered in an ultra-small size with integrated compensation. This enables minimal external components that allow up to 50% savings in board space making them ideal products for always-on automotive applications.

Create small and highly efficient 40V load dump-tolerant applications with the ultra-compact, pin-compatible MAX20075 and MAX20076 step-down converters.

Key benefits of the products include:-

  • The converters offer 3.5µA IQ compared to traditional solutions that offer 15-30µA IQ, allowing engineers to meet stringent OEM quiescent current requirements of 100 µA per module.
  • The ultra-small size (3mm × 3mm) of these devices eliminate external components and enable 50% savings in board space making them ideal products for always-on automotive applications.
  • The DC-DC converters claim highest peak efficiency of 91% compared to competitive solutions.
  • Spread spectrum control and internally fixed at 2.1MHz assist with CISPR25 Class 5 EMI compliance, and supports the increasing need for more processing power in ADAS applications.

“Advancements in automotive technology have led to an increase in complex ECUs per vehicle. Adding more electrical components to a vehicle leads to higher amounts of parasitic battery drain, which has made reducing quiescent current a huge trend in the automotive world,” said Zong Zhen, automotive electronics and semiconductor senior analyst for IHS Markit, a global information provider. “The MAX20075 and MAX20076 step-down DC-DC converters offer another viable option to car manufacturers.”

“By offering the lowest IQ in the market, the pin-compatible MAX20075 and MAX20076 presents an overall benefit to the system. This translates to higher peak efficiency and faster start-up time,” said Chintan Parikh, Executive Business Manager, Automotive, Maxim Integrated. “The 3.5µA IQ offered with these buck converters are key to meeting stringent OEM quiescent current consumption requirements, which are typically as low as 100µA per module. This enables engineers to build in more processing power for more functionality and other advanced features.”

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The MAX20075 and MAX20076 meet AEC-Q100, are available in a 3x3mm TDFN package, and operate over the -40oC to +125oC temperature range.

The MAX20075EVKIT# and MAX20076EVKIT# evaluation kits are also available.

More information:

https://www.maximintegrated.com/en/aboutus/newsroom.html

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