Texas Instruments Evaluation Module for TPS54821 TPS54821EVM-049 TPS54821EVM-049 데이터 시트
제품 코드
TPS54821EVM-049
V
= 100 mV/div (ac coupled)
OUT
I
= 2 A/div
OUT
Time = 100 µs/div
2 A to 6 A load step,
slew rate = 1 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
G001
Test Setup and Results
2.5
Load Transients
shows the TPS54821EVM-049 response to load transients. The current step is from 25% to 75%
of maximum rated load at 12-V input. The current step slew rate is 1 A/
µ
s. Total peak-to-peak voltage
variation is as shown, including ripple and noise on the output.
Figure 5. TPS54821EVM-049 Transient Response
2.6
Loop Characteristics
shows the TPS54821EVM-049 loop-response characteristics. Gain and phase plots are shown
for V
IN
voltage of 12 V. Load current for the measurement is 8 A.
Figure 6. TPS54821EVM-049 Loop Response
7
SLVU479
–
October 2011
TPS54821EVM-049, 8-A, SWIFT
™
Regulator
—
Evaluation Module
Copyright
©
2011, Texas Instruments Incorporated