Texas Instruments TPS54340 Step-Down Converter Evaluation Module TPS54340EVM-182 TPS54340EVM-182 데이터 시트
제품 코드
TPS54340EVM-182
Time = 2
s/div
m
1
A/div
10 V/div
200 mV/div
C3: V
ac coupled
IN
C1: SW
C4: IL
I
= 3.5 A
OUT
C2
C4
C1
Time = 2
s/div
m
500 mA/div
10 V/div
50 mV/div
C3: V
ac coupled
IN
C1: SW
C4: IL
I
= 100 mA
OUT
C3
C4
C1
Test Setup and Results
2.7
Input Voltage Ripple
The EVM CCM input voltage ripple is shown in
. The output current is the rated full load of 3.5 A
and V
IN
= 12 V. The voltage ripple is measured directly across the input capacitors.
The DCM input voltage ripple is shown in
. The output current is 0.1 A and V
IN
= 12 V.
Figure 14. Input Voltage Ripple CCM
Figure 15. Input Voltage Ripple DCM
9
SLVU794A – October 2012 – Revised February 2013
Using the TPS54340 Step-Down Converter Evaluation Module
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