SLYA094 August   2025 LM5137F-Q1

 

  1.   1
  2.   Abstract
  3.   Trademarks
  4. 1Introduction
  5. 2Hardware Design with LM5137F-Q1
    1. 2.1 Schematic
  6. 3PMP41158 Performance Curves
    1. 3.1 Four-Phase Interleaving
    2. 3.2 Thermal Performance
    3. 3.3 Load Transient
    4. 3.4 Light Load Efficiency
    5. 3.5 Bode Plot
  7. 4Reference Design Modification Conversion From 48V to 12V
  8. 5Summary
  9. 6References

3.5 Bode Plot

Through optimized compensation circuit, PMP41158 can get good bode plot. Figure 3-12 is a bode plot of the reference design. Phase margin of 60° and gain margin is -12.8dB is achieved, making sure of stable operation.

Bode Plot at 13.5Vin, 4.5Vout, 42Aout Figure 3-12 Bode Plot at 13.5Vin, 4.5Vout, 42Aout