TPS53353_15 datasheet(10/37 Pages) TI

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Time (10 ms/div)

IOUT from 20 A to 25 A

VIN = 12 V

VOUT (1 V/div)

LL (10 V/div)

IL (10 A/div)

PGOOD (5 V/div)

Time (10 ms/div)

IOUT 2 A then Short Output

VIN = 12 V

VOUT (1 V/div)

LL (10 V/div)

IL (10 A/div)

IOUT (25 A/div)

FCCM

IN = 12 V, VOUT = 1.1 V

OUT from 0 A to 10 A, 2.5 A/ms

Time (100 ms/div)

OUT (20 mV/div)

OUT (5 A/div)

Skip Mode

IN = 12 V, VOUT = 1.1 V

OUT from 0 A to 10 A, 2.5 A/ms

Time (100 ms/div)

OUT (20 mV/div)

OUT (5 A/div)

Time (200 ms/div)

LL (5 V/div)

OUT (20 mV/div)

L (5 A/div)

Skip Mode

IN = 12 V

OUT = 1.1 V

Skip Mode

IN = 12 V

OUT = 1.1 V

Time (200 ms/div)

LL (5 V/div)

OUT (20 mV/div)

L (5 A/div)

TPS53353

SLUSAK2B – AUGUST 2011 – REVISED FEBRUARY 2015

www.ti.com

Typical Characteristics (continued)

Figure 19. CCM-to-DCM Transition Waveforms

Figure 20. DCM-to-CCM Transition Waveforms

Figure 22. Skip Mode Load Transeint

Figure 21. FCCM Load Transient

Figure 24. Output Short-Circuit Protection Waveforms

Figure 23. Overcurrent Protection Waveforms

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