Datasheet

t - Time - 10 ms/div
EN (5 V/div)
PGOOD (5 V/div)
V (0.5 V/div)
OUT
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V = 12 V,
I = 0 A
IN
OUT
DRVL (5 V/div)
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V = 12 V
I = 20 A
IN
OUT
EN (5 V/div)
V (0.5 V/div)
OUT
PGOOD (5 V/div)
t – Time – 500 s/divm
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V = 12 V,
I = 0 A
IN
OUT
EN (5 V/div)
PGOOD (5 V/div)
V (0.5 V/div)
OUT
t - Time - 500 s/divm
0.5 V pre-biased
Performance and Typical Characteristic Curves www.ti.com
6.7 Start and Stop
Figure 14. Enable Turn-On Waveform at 0.9-V Output Figure 15. Enable Turn-Off Waveform at 0.9-V Output
Figure 16. Pre-Bias Turn-On Waveform at 0.9-V Output
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Using the TPS51217EVM-533, High-Performance, Single-Synchronous SLUU420–MAY 2010
Step-Down Controller for Notebook Power Supply
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