ADP5320 Power Management Unit (PMU)

Analog Devices Inc. ADP5320 Power Management Unit (PMU) is designed to meet the demanding performance and board space requirements for wearable applications. This PMU combines nine digitally adjustable regulators, a fuel gauge, a 12-bit ADC, 2KB of OTP memory, and anticounterfeit logic in a 42-ball. The regulators include 2x buck-boost, 1x buck regulator, 5x Low Dropout (LDO) regulators, and one low input LDO. This ADP5320 PMU operates from a 1.8V to 5.5V input supply voltage range that enables the device for use with multiple types of battery inputs. The PMU features a power-good monitor, watchdog power hard reset, and I²C interface with interrupt warning.