Block diagram of the 5.0-V dc MAX20343H SMPS circuit for remote-patient vital sign monitoring applications. ... These power-supply circuits will work with MAX86141-based PPG devices as well.

1.8-V/1.8-V/5.0-V SMPS Circuit Using a PMIC. The following circuit based on the MAX77642 PMIC shows typical input and output power-supply levels for a properly operating switched-mode power-supply ...