TIDT359 October   2023

 

  1.   1
  2.   Description
  3.   Features
  4.   Applications
  5. 1Test Prerequisites
    1. 1.1 Voltage and Current Requirements
    2. 1.2 Dimensions
  6. 2Testing and Results
    1. 2.1 Efficiency Graphs
    2. 2.2 Efficiency Data
    3. 2.3 Thermal Images
    4. 2.4 Bode Plots
  7. 3Waveforms
    1. 3.1 Switching
    2. 3.2 Output Voltage Ripple
    3. 3.3 Input Voltage Ripple
    4. 3.4 Load Transients
    5. 3.5 Start-Up Sequence
    6. 3.6 Voltage Supervisor
    7. 3.7 Watchdog

Description

This reference design is a flexible and compact power supply providing 5-V and 3.3-V output rails to supply the C2000™ MCU. The design includes 2 × LMR34206-Q1 devices (an ultra-small synchronous step-down converter) and one TPS3850-Q1 (a precision voltage supervisor with programmable window watchdog timer). In addition, a single D-type flip flop (SN74LVC2G74-Q1) is added to provide the compatibility of the watchdog with the C2000™ MCU start-up behavior.