The TPS65219/TPS65220 PMIC is a cost and space optimized solution that has flexible mapping to support the power requirements from different processors and SoCs. This PMIC contains seven regulators; 3 Buck regulators and 4 Low Drop-out Regulators (LDOs). Additionally, it has I2C, GPIOs and configurable multi-function pins. TPS65219 is characterized for -40°C to +105°C ambient temperature and TPS65220 is characterized for -40°C to +125°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. Whenever entering the INITIALIZE state, the PMIC reads its memory and loads the registers with the content from the EEPROM. The EEPROM loading takes approximately 2.3ms. The power-up sequence can only be executed after the EEPROM-load and all rails are discharged below the SCG threshold. This document describes the default configuration programmed on TPS6522053.

A hardware solution is readily available with the AM64x SK EVM Revision 2 using TPS65220 PMIC (SK-AM64B)

The following sections describe the default configuration on the EEPROM-backed registers. During the power-down-sequence, non-EEPROM-backed bits get reset, with the exception of unmasked interrupt bits and DISCHARGE_EN bits.

This section lists all the register settings to identify the supported temperature and the NVM ID with the corresponding revision that represent a list of default register settings.

This section describes the PMIC rails that are enabled in Active and Standby state. Any rail that is disabled by default has the option to be enabled through I2C once the device is in Active state and I2C communication is available.

This section describes how each of the PMIC power resources were configured.

This section breaks out the power sequence settings for the device including the power-up/power-down slot assignment and duration. There may be slots in which no rail nor GPO is assigned to ramp. In this case, we use a combination of slot durations to achieve desired delay times or allow to increase/reduce the timings.