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Analog Devices MAX77658 Ultra-Low Power PMICs allow highly-integrated battery charging and power supply solutions for low-power applications where size and efficiency are critical. The MAX77658 offers a SIMO buck-boost regulator with three highly efficient and independently programmable power rails from a single inductor to minimize the total solution size. Furthermore, two 150mA LDOs deliver ripple rejection for audio and other noise-sensitive applications. The LDOs can also be configured as load switches to manage power consumption by disconnecting external blocks when not required.
A highly configurable linear charger supports a wide range of Li+ battery capacities and includes battery temperature monitoring for additional safety (JEITA). The fuel gauge implements the ModelGauge™ m5 EZ algorithm with ultra-low power. The IC provides excellent performance for batteries with 10mAhr to 1Ahr capacity.
Analog Devices MAX77658 PMICs include three GPIOs and an analog multiplexer that chooses between several internal voltages and current signals to an external node for monitoring with an external ADC. A bidirectional I2C serial interface permits configuring and checking the status of the devices. An internal on/off controller supplies a controlled startup sequence for the regulators and equips supervisory functionality while they are on. Numerous factory programmable options allow the device to be tailored for many applications, enabling faster time to market.
