Maxim's ultra-small step-down converters for savings in board space
Maxim Integrated Products' MAX20075 and MAX20076 are step-down converters designed to create small and highly efficient 40-V load dump-tolerant applications. The devices are claimed to offer the industry's lowest quiescent current (IQ) and come in an ultra-small size solution with integrated compensation. This enables minimal external components that can lead up to 50% savings in board space.
The MAX20075 and MAX20076 in peak current mode draw a low t IQ—just 3.5 µA in the low power operating mode, which is key to meeting the stringent OEM IQ consumption requirements of 100 µA per module. The converters enable low noise operation via pin-controlled spread spectrum and fixed 2.1 MHz operation to meet CISPR 25 Class 5 EMI compliance. Furthermore, added advantage of the 2.1 MHz 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 devices are available with a low minimum on-time mode operation, which allows the converters to support large input-to-output conversion ratios. For example, Vbatt input to Vout of <3 V at 2.1 MHz 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 degree C to +125 degree C.
Learn more at https://www.maximintegrated.com.