2 TPS65220 and TPS65219 Overview

The TPS65220 and TPS65219 PMICs each contain seven regulators, 3 Buck regulators and 4 Low Drop-out Regulators (LDOs). The Buck converters are capable of supporting up to 3.5 A for Buck1, and 2 A each for the remaining buck regulators. LDO1 and LDO2 (2×400 mA) are configurable for load switch and bypass mode to support dynamic SD card voltages, while LDO3 and LDO4 (2×300 mA) are configurable as load switches. With a VIN range of 2.5 V to 5.5 V, the PMIC can support a common 3.3 V or 5 V system voltage. With an I2C interface, three GPIO pins, and three multi-function-pins, the TPS65220 and TPS65219 PMIC each provides the full power package to supply the AM64x SoC, as well as many other SoCs. Table 2-1 provides a summary of the TPS65220 and TPS65219 Power Resources.

TPS65220 is characterized for -40°C to +125°C ambient temperature, and TPS65219 is characterized for -40°C to +105°C ambient temperature. The extended PMIC temperature range of TPS65220 allows support of AM64x based systems operating at higher temperatures. For safety sensitive applications, TPS65220 is functional safety capable. Therefore the TPS65220 development process is a TI-quality managed process, also functional safety FIT rate calculation and Failure mode distribution (FMD) is available for TPS65220. The TPS65220 device also provides flexibility in switching frequency, since it can support depending on programmed NVM settings either 2.3 MHz fixed frequency or 2.3MHz quasi-fixed frequency allowing low IQ/auto-PFM and Forced PWM modes. Table 2-2 provides a features comparison between the TPS65220 and TPS65219.