Datasheet

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5.4 Switch Node
5.5 Control Loop Bode Plot (low line, V
IN
= 8 V)
0 1.5
Frequency - Hz
0.5 1.0 2.0
PHASE/GAIN
vs
FREQUENCY (TPS54283 Loop Response)
Gain - dB
5.035
5.015
5.000
4.985
5.020
5.030
5.010
4.990
4.995
5.035
5.015
5.000
4.985
5.020
5.030
5.010
4.990
4.995
Phase - degrees
3.3 V
Phase
5.0 V
Phase
5.0 V
Gain
3.3 V
Gain
TPS54383EVM Typical Performance Data and Characteristic Curves
Figure 8. TPS54383EVM Switching Waveforms V
IN
= 12 V, I
OUT
= 2 A Ch1: TP9 (SW1), Ch2: TP12 (SW2)
Figure 9. TPS54383EVM Gain and Phase vs Frequency
A 12-V Input, 5.0-V and 3.3-V Output, 2-A Non-Synchronous Buck Converter14 SLUU285C – July 2007 – Revised January 2008
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