Maxim step-down converters provide compact solution

Maxim Integrated Products has released the MAX20075 and MAX20076, step down converters that have been created specifically for system designers looking to create ‘small and highly efficient’ 40V load dump-tolerant applications.

The MAX20075 and MAX20076 are said to offer the industry’s lowest quiescent current (IQ) and due to their ultra-small, integrated design can save as much as a 50% in board space. Maxim said this makes these products suitable for ‘always-on’ automotive applications.

In peak current mode, these devices draw just 3.5µA in the low power operating mode, addressing stringent OEM IQ consumption requirements of 100µA per module.

The converters have been designed to enable low noise operation via pin-controlled spread spectrum and fixed 2.1Mhz operation to meet CISPR 25 Class 5 EMI compliance.

Maxim also indicated that an added advantage of the 2.1Mhz operation and internal compensation is that it lowers the solution size and the bill of materials compared to a non-synchronous device that operates in the AM band.

The MAX20075 and MAX20076 are available with a low minimum on-time mode operation, allowing the converters to support large input-to-output conversion ratios. For example, Vbatt input to Vout of <3V at 2.1Mhz; this translates to not having to use a secondary supply, which reduces overall BOM cost by $0.30 to incorporate new functions into the design for greater flexibility.

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

Author
Bethan Grylls