SLDS187A October 2018 – December 2019 TPS65216
The TPS65216 provides three step-down converters three general-purpose I/Os, one buck-boost converter, one load switch, and one LDO. The system can be supplied by a regulated 5-V supply. The device is characterized across a –40°C to +105°C temperature range, which makes it suitable for various industrial applications.
The I2C interface provides comprehensive features for using TPS65216. All rails, the load switch, and GPIOs can be enabled and disabled. Voltage thresholds for the UVLO and supervisor can be customized. Power-up and power-down sequences can also be programmed through I2C. Interrupts for overtemperature, overcurrent, and undervoltage can be monitored for the load-switch.
The integrated voltage supervisor monitors DCDC 1-4 and LDO1. It has two settings; the standard settings only monitor for undervoltage, while the strict settings implement tight tolerances on both undervoltage and overvoltage. A power-good signal is provided to report the regulation state of the five rails.
The three hysteretic step-down converters can each supply up to 1.8 A of current. The default output voltages for each converter can be adjusted through the I2C interface. DCDC1 and DCDC2 features dynamic voltage scaling with an adjustable slew rate. The step-down converters operate in a low power mode at light load, and can be forced into power mode (PWM) operation for noise sensitive applications.