Datasheet
Table Of Contents
- 1 Introduction
- 2 TPS54386EVM Electrical Performance Specifications
- 3 Schematic
- 3.1 Sequencing Jump (JP3)
- 3.2 Enable Jumpers (JP1 and JP2)
- 3.3 Test Point Descriptions
- 3.3.1 Input Voltage Monitoring (TP1 and TP2)
- 3.3.2 Channel 1 Output Voltage Monitoring (TP3 and TP4)
- 3.3.3 Channel 1 Loop Analysis (TP5, TP6, TP7 and TP8)
- 3.3.4 Channel 1 Switching Waveforms (TP9 and TP10)
- 3.3.5 TPS54386 Device Ground (TP11)
- 3.3.6 Channel 2 Switching Waveforms (TP12 and TP13)
- 3.3.7 Channel 2 Loop Analysis (TP14, TP15, TP16 and TP17)
- 3.3.8 Output Voltage Monitoring (TP18 and TP19)
- 4 4 Test Set Up
- 5 TPS54386EVM Typical Performance Data and Characteristic Curves
- 6 EVM Assembly Drawings and Layout
- 7 List of Materials
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5.4 Switch Node
5.5 Control Loop Bode Plot (low line, V
IN
= 8 V)
f - Frequency - Hz
72
0
-72
100 1000
36
Gain - dB
GAIN/PHASE
vs
FREQUENCY(V
OUT
= 5.0 V, I
OUT
= 2 A)
-36
10
Gain
Phase
-48
-60
-12
-24
24
12
60
48
90
-45
-180
Phase - °
-135
-90
0
45
0
GAIN/PHASE
vs
FREQUENCY(V
OUT
= 3.3 V, I
OUT
= 2 A)
f - Frequency - Hz
100 1000100
100
20
-60
60
Gain - dB
-20
-40
0
40
80
Phase - °
90
-45
-90
0
45
Gain
Phase
TPS54386EVM Typical Performance Data and Characteristic Curves
Figure 8. TPS54386EVM Switching Waveforms V
IN
= 12 V, I
OUT
= 2 A Ch1: TP9 (SW1), Ch2: TP12 (SW2)
Figure 9. TPS54386EVM Gain and Phase vs Frequency
A 12-V Input, 5.0-V and 3.3-V Output, 2-A Non-Synchronous Buck Converter14 SLUU286 – March 2008
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