Datasheet

Time: 200 µs/div
C3: V
OUT
(2.0 V/div)
C2: V
IN
(5.0 V/div)
C1: SW (5.0 V/div)
I
OUT
= 2.1 A
V
IN
= 3.6 V
C4: EN (5.0 V/div)
Time: 1.0 ms/div
C3: V
OUT
(2.0 V/div)
C2: V
IN
(5.0 V/div)
C1: SW (5.0 V/div)
I
OUT
= 2.1 A
V
IN
= 3.6 V
C4: EN
(5.0 V/div)
www.ti.com Test Setup and Results
4.10 Powering Up and Down with EN
Figure 11 shows the start-up waveforms for the EVM. The input voltage is 3.6 V, the EN goes high and
the output voltage ramps from V
IN
to 5 V. The load is 2.1 A.
Figure 11. TPS55330EVM-017 Power Up With EN
Figure 12 shows the shutdown waveforms for the EVM. The input voltage is 3.6 V. The EN goes low and
the output voltage ramps from 5 V to V
IN
. The load is 2.1 A.
Figure 12. TPS55330EVM-017 Power Down With EN
9
SLVU930–July 2013 TPS55330EVM-017 2.9-V to 4.2-V Input, 5.0-V Output Boost Evaluation
Module
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