TPS53353_16 datasheet(9/37 Pages) TI1

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Time (2 ms/div)

LL (5 V/div)

OUT (20 mV/div)

L (5 A/div)

FCCM

IN = 12 V

OUT = 0 A

Time (1 ms/div)

LL (5 V/div)

OUT (20 mV/div)

L (5 A/div)

Skip Mode

IN = 12 V

OUT = 0 A

IN (5 V/div)

OUT (0.5 V/div)

VREG(5 V/div)

PGOOD (5 V/div)

EN = 5 V

DD = VIN

OUT = 20 A

Time (2 ms/div)

IN = 12 V

OUT = 20 A

EN (5 V/div)

OUT (0.5 V/div)

VREG(5 V/div)

PGOOD (5 V/div)

Time (20 ms/div)

IN = 12 V

OUT = 20 A

EN (5 V/div)

OUT (0.5 V/div)

VREG(5 V/div)

PGOOD (5 V/div)

Time (1 ms/div)

IN = 12 V

OUT = 0 A

EN (5 V/div)

OUT (0.5 V/div)

VREG(5 V/div)

PGOOD (5 V/div)

0.5 V pre-biased

Time (1 ms/div)

TPS53353

www.ti.com

SLUSAK2C – AUGUST 2011 – REVISED FEBRUARY 2016

Product Folder Links: TPS53353

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Typical Characteristics (continued)

Figure 13. Start-Up Waveforms

Figure 14. Prebias Start-Up Waveforms

Figure 15. Shutdown Waveforms

Figure 16. UVLO Start-Up Waveforms

Figure 17. 1.1-V Output FCCM Mode Steady-State Operation

Figure 18. 1.1-V Output Skip Mode Steady-State Operation

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