GENERAL DESCRIPTION
A flexible set of poweroptimized voltage regulators including multiple buck converters, a buck-boost converter, and linear regulators provide a high level of integration and the ability to create a fully optimized power architecture. The MAX20356/MAX20358 include a complete batterymanagement solution with battery seal, charger, power path, and fuel gauge. Both thermal management and input protection are built into the charger. The devices also include a factory-programmable button controller with multiple inputs that are customizable to fit specific product user requirements. A low-noise, 1.5W buck-boost converter provides highly efficient and clean power conversion required for the LEDs used in optical heart-rate systems such as PPG and SPO2 measurements. The MAX20356/MAX20358 are also equipped with a nano IQ fast transient LDO, optimized for use in analog front-end (AFE) sensors. The MAX20356/MAX20358 are configurable through an I2C interface that allows for programming various functions and reading the device status, including the ability to read temperature and supply voltages through the monitor multiplexer.
Analog Devices
