參數(shù)資料
型號: TPS54880EVM
廠商: Texas Instruments, Inc.
英文描述: 8-Amp SWIFT Regulator Evaulation Module(8A SWIFT穩(wěn)壓器TPS54880的評估模塊)
中文描述: 8安培的SWIFT穩(wěn)壓Evaulation模塊(8A條SWIFT的穩(wěn)壓器TPS54880的評估模塊)
文件頁數(shù): 31/44頁
文件大小: 1180K
代理商: TPS54880EVM
Output and Input Voltage Ripple and Main Switching Waveforms
2-13
Test Setup and Results
2.8
Output and Input Voltage Ripple and Main Switching Waveforms
The TPS54x80EVM-228 evaluation module output and input voltage ripple
and main switching waveforms at V
I
= 3.3 V, V
O
= 1.8 V, I
O
= 6 A and
Fs = 700 kHz are shown in Figure 2-16. For these waveforms for the
TPS54680 regulator:
Ch.2: Input ripple 100 mV/div.
Ch.3: Output ripple 20 mV/div.
Ch.4: Phase pin 2 V/div.
Time: 1
μ
s/div
Figure 2-16. Input and Output Voltage Ripple and Main Switching Waveform at V
I
= 3.3 V
Figure 2-17 shows the output and input voltage ripple and main switching
waveforms of the core regulator TPS54680/TPS54880 and I/O regulator
TPS54610/TPS54810. The measurements are taken at V
I
= 5 V, V
O
= 1.8 V
(core), I
O
= 6 A (core), V
O
= 3.3 V (I/O), I
O
= 0 A (I/O) and Fs = 700 kHz for both
channels. For these waveforms:
Ch.2: Input ripple 100 mV/div.
Ch.3: Output ripple 20 mV/div.
Ch.4: Phase pin of TPS54680 (core) 5 V/div.
Ch.1: Phase pin of TPS54610 (I/O) 5 V/div.
Time: 1
μ
s/div
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