Datasheet

Time: 200 µs/div
C3: V
OUT
ac coupled
(10.0 mV/div)
C1: SW (2.0 V/div)
No load
V
IN
= 3.6 V
Time: 1.0 µs/div
C3: V
OUT
ac coupled
(10.0 mV/div)
C4: I
L
(1.0 A/div)
C1: SW (5.0 V/div)
I
OUT
= 100 mA
V
IN
= 3.6 V
www.ti.com Test Setup and Results
Figure 7 shows the EVM output voltage ripple, inductor current ripple and switching waveform while
operating in discontinuous conduction mode (DCM). The input voltage is 3.6 V and the output is loaded
with 100 mA.
Figure 7. TPS55330EVM-017 DCM Output Ripple
4.8 Pulse-Skipping Operation
The TPS55330 features pulse-skipping for output regulation when operating at light loads. Figure 7 shows
the output voltage ripple and the pulse-skipping at SW. The input voltage is 3.6 V.
Figure 8. TPS55330EVM-017 V
IN
= 3.6-V Pulse-Skipping
7
SLVU930–July 2013 TPS55330EVM-017 2.9-V to 4.2-V Input, 5.0-V Output Boost Evaluation
Module
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