TIDT335 july   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 PCB Properties
  6. 2Testing and Results
    1. 2.1 Efficiency and Thermals
  7. 3Waveforms
    1. 3.1 Start-Up Sequence
    2. 3.2 Switch Node
    3. 3.3 Output Voltage Ripple
    4. 3.4 Load Step

Description

This reference design provides 5 V, 3.3 V and
1.0 V to power an automotive MCU using three buck converters together with a pre-boost converter. The pre-boost regulator can provide 1.25-A continuous output current at 8.5 V from a 3.2-V input voltage. The main goal of this design is to fit the buck architecture within a small board area, using mostly single-sided component placement.