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

Switch Node

Figure 3-7 through Figure 3-8 illustrate the LM5150-Q1 switch node waveforms at 1.25-A output current.

GUID-20230428-SS0I-WRCH-6KGS-4BM6R0R8FPDD-low.png
CH1: Switch node waveform, 2 V/div, 5 μs/div, 500-MHz bandwidth
Figure 3-2 LM5150-Q1 Switch Node Waveform
GUID-20230428-SS0I-KLTV-DHPP-9GWNNKCJ7RZ6-low.png
CH1: Switch node waveform, 2 V/div, 80 ns/div, 500-MHz bandwidth
Figure 3-3 LM5150-Q1 Switch Node Waveform With 4.7 R Gate Resistor

GUID-20230428-SS0I-ZPTC-SQXT-Q0FQNKW94CHF-low.png

CH1: Switch node waveform, 2 V/div, 80 ns/div, 500-MHz bandwidth
Figure 3-4 LM5150-Q1 Switch Node Waveform With 6.8 R Gate Resistor