This user’s guide can be used as a guide for powering DRA78x, and TDA3x with the LP8733-Q1 power device.

This user’s guide describes the platform connections as well as the power-up and power-down sequences along with the OTP configuration. This user's guide does not provide details about the power resources, external components, or the functionality of the device. For such information, refer to LP8733xx-Q1 Dual High-Current Buck Converter and Dual Linear Regulator.

In the event of any inconsistency between the official specification and any user's guide, application report, or other referenced material, the data sheet specification will be the definitive source.

The OTP settings for the LP8733-Q1 are described in this document.

In addition, power solutions are available using TPS65919-Q1 or TPS65917-Q1 as described in the TPS65919-Q1 and TPS65917-Q1 User's Guide to Power TDA3x. See Table 2-1 to determine the recommended part number based on the DDR memory type and the Vdd_dspeve current requirement of the processor.

Texas Instruments recommends having 15% margin in the load current. Therefore the current requirements listed in Table 2-1 are 15% lower than the maximum capability of the regulator. If the Vdd_dspeve current in the application is unknown, select the TPS65919-Q1 configuration because it supports the maximum performance of the processors. For systems requiring functional safety, the TPS65919-Q1 and TPS65917-Q1 devices comply with applicable ISO 26262 ASIL-B requirements.