SLVAF16A March   2021  – December 2021 AFE7920 , AFE7950 , TPS541620 , TPS62912 , TPS62913

 

  1.   Trademarks
  2. 1Introduction and System Description
    1. 1.1 Introduction
      1. 1.1.1 AFE79xx Noise and Ripple Requirements
      2. 1.1.2 TPS62913 Low-Noise and Low-Ripple Buck Converter
      3. 1.1.3 TPS541620 Dual 6A Converter
    2. 1.2 Block Diagram
    3. 1.3 Design Considerations
  3. 2Tests and Results
    1. 2.1 Test Methodology
    2. 2.2 Test Conditions
    3. 2.3 Test Results
  4. 3Schematic
  5. 4Conclusion
  6. 5References
  7. 6Revision History

1.1.3 TPS541620 Dual 6A Converter

The TPS541620 is a high-efficiency, fixed frequency, dual 6-A output buck converter. This device is ideal for applications where board space is limited. The two outputs switch out-of-phase to minimize the conducted noise generated on the input. The device uses Advanced Current-Mode (ACM) Control to simplify compensation and to allow for a low minimum on-time enabling high switching frequency in low duty cycle applications. For example, it is capable of operating at 1-MHz switching frequency in a 12-V input to 0.9-V output application. The device can also be synchronized to an external clock to provide more control over the noise generated in the power supply design. The low output ripple needed for the 0.9V and 1.2V rails in this design is achieved with passive filtering only. Lastly, the two 6-A outputs can also be combined to drive a single 12-A load.