Datasheet

Time: 1.0 µs/div
C3: V
OUT
ac coupled
(20.0 mV/div)
C4: I
L
(1.0 A/div)
C1: SW (5.0 V/div)
I
OUT
= 2.1 A
V
IN
= 3.6 V
-180
-120
-60
0
60
120
180
-60
-40
-20
0
20
40
60
10 100 1000 10000 100000 1000000
Phase - deg
Gain - dB
Frequency - Hz
C004
V
OUT
= 5 V, V
IN
= 3.6 V
I
OUT
= 2.1 A
Phase
Gain
Test Setup and Results www.ti.com
4.6 Loop Characteristics
Figure 5 shows the EVM loop-response characteristics. Gain and phase plots are shown for V
IN
voltage of
3.6 V with load current of 2.1 A.
Figure 5. TPS55330EVM-017 Loop Response
4.7 Output Voltage Ripple
Figure 6 shows the EVM output voltage ripple and inductor current ripple. The output current is the rated
full load of 2.1 A and V
IN
= 3.6 V. The ripple voltage is measured directly across the output capacitors.
Figure 6. TPS55330EVM-017 V
IN
= 3.6-V Output Ripple
6
TPS55330EVM-017 2.9-V to 4.2-V Input, 5.0-V Output Boost Evaluation SLVU930–July 2013
Module
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