TPS53355 Datasheet, PDF (13/29 Pages) Texas Instruments – High-Efficiency 30-A Synchronous Buck Converter with Eco-mode™

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FCCM
V_IN = 12 V, V_OUT = 1.1 V
I_OUT from 0 A to 10 A, 2.5 A/ms
TYPICAL CHARACTERISTICS (continued)
Skip Mode
V_IN = 12 V, V_OUT = 1.1 V
I_OUT from 0 A to 10 A, 2.5 A/ms
TPS53355
SLUSAE5 – AUGUST 2011
V_OUT (20 mV/div)
V_OUT (20 mV/div)
I_OUT (5 A/div)
I_OUT (5 A/div)
Time (100 ms/div)
Figure 29. FCCM Load Transient
V_OUT (1 V/div)
I_OUT from 20 A to 25 A
V_IN = 12 V
LL (10 V/div)
Time (100 ms/div)
Figure 30. Skip Mode Load Transeint
V_OUT (1 V/div)
LL (10 V/div)
I_OUT 2 A then Short Output
V_IN = 12 V
I_L (10 A/div)
PGOOD (5 V/div)
Time (10 ms/div)
Figure 31. Overcurrent Protection Waveforms
I_L (10 A/div)
I_OUT (25 A/div)
Time (10 ms/div)
Figure 32. Output Short Circuit Protection Waveforms
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