2 Introduction to Main Modules of TPS6594

The functional modules of TPS6594 and LP8764 are similar. Here, TPS6594 is taken as an example to introduce the main internal modules of the chip. The internal architecture block diagram of TPS6594 is shown in Figure 2-1. According to the sequence of numbers marked in the figure, we can roughly divide it into the following modules:

1. VSYS Input Control Module
2. Power Distribution Module
3. Voltage Monitoring Module
4. BUCK Module
5. LDO Module
6. IO Module
7. Digital Logic Module

LP8764 does not have the VSYS input control module and the LDO module; other modules are highly similar to TPS6594 and can be cross-referenced. This article will introduce the functions and behavioral logic of these modules one by one. Due to space limitations, content related to the digital logic module will be described in subsequent articles.