Texas Instruments Evaluation Module for TPS54519 Synchronous Step-Down Converter TPS54519EVM-037 TPS54519EVM-037 데이터 시트
제품 코드
TPS54519EVM-037
V
= 50 mV / div (ac coupled)
OUT
Time = 200 µsec / div
I
= 2 A / div
OUT
Load step = 1.25 A - 3.75 A, slew rate = 0.5 A / µsec
100
1000
10000
100000
1000000
−60
−50
−40
−30
−20
−10
0
10
20
30
40
50
60
−180
−150
−120
−90
−60
−30
0
30
60
90
120
150
180
Frequency (Hz)
Gain (dB)
Phase (°)
Gain
Phase
Phase
G005
Test Setup and Results
2.5
Load Transients
shows the TPS54519EVM-037 response to load transients. The current step is from 25% to 75%
of maximum rated load at 5 V input. Total peak-to-peak voltage variation is as shown, including ripple and
noise on the output.
noise on the output.
Figure 5. TPS54519EVM-037 Transient Response
2.6
Loop Characteristics
shows the TPS54519EVM-037 loop-response characteristics. Gain and phase plots are shown
for V
IN
voltage of 5 V. Load current for the measurement is 5 A.
Figure 6. TPS54519EVM-037 Loop Response
7
SLVU523
–
September 2011
TPS54519EVM-037, 5-A, SWIFT
™
Regulator
—
Evaluation Module
Copyright
©
2011, Texas Instruments Incorporated