Maxim: small step-down converters deliver low quiescent current

System designers looking to create small and highly efficient 40V load dump-tolerant applications can now utilize the ultra-compact, pin-compatible MAX20075 and MAX20076 step-down converters from Maxim Integrated Products. The MAX20075 and MAX20076 step-down converters offer the industry's lowest quiescent current and comes in an ultra-small size solution with integrated compensation. This enables minimal external components that can lead up to 50% savings in board space making them ideal products for always-on automotive applications.

The MAX20075 and MAX20076 in peak current mode draw quiescent current of just 3.5µA in the low power operating mode, which is key to meeting the stringent OEM IQ consumption requirements of 100µA per module. The converters enable low noise operation via pin-controlled spread spectrum and fixed 2.1Mhz operation to meet CISPR 25 Class 5 EMI compliance. Furthermore, 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, which allows the converters to support large input-to-output conversion ratios.

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