SLUP413A May   2024  – April 2026 TPS53689T

 

  1.   1
  2.   Abstract
  3. 1 Introduction
  4. 2 Converter Transient Response
  5. 3 Magnetics
  6. 4 TLVR Topology Operating Principles
    1. 4.1 Steady-State Operation
    2. 4.2 Load Transient Step-Up
    3. 4.3 Load Transient Step-Down
    4. 4.4 LC Inductor Selection
    5. 4.5 Steady-State Ripple
  7. 5 Power Loss and Efficiency
  8. 6 Phase Multiplication
  9. 7 PCB Layout
  10. 8 TLVR-Optimized Components
  11. 9 Example Side-by-Side Design
  12. 10Summary
  13. 11Additional Resources

Abstract

Introduced in 2019, the trans-inductor voltage regulator (TLVR) topology offers major transient response, power density and solution cost improvements (a >40% capacitor reduction for the design example reviewed in this topic) versus the traditional multiphase buck voltage regulator topology. This topic covers the operating principles of the TLVR topology, performance and cost improvements over traditional voltage regulators, design equations, and guidelines.