TPS54821 datasheet(27/42 Pages) TI2

Part #	TPS54821

Description	TPS54821 4.5 V to 17 V Input, 8 A Synchronous Step Down Converter With Hiccup

PDF	42 Pages

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Manufacturer	TI2 [Texas Instruments]

Direct Link	https://www.ti.com

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= 20 mV/div (ac coupled)

OUT

Time = 1 µs/div

PH = 5 V/div

= 500 mV/div (ac coupled)

Time = 1 µs/div

PH = 5 V/div

= 2 V/div

OUT

Time = 5 ms/div

SS/TR = 1 V/div

EN = 5 V/div

PWRGD = 5 V/div

= 1 V/div (1 V pre-bias)

OUT

Time = 2 ms/div

= 5 V/div

= 100 mV/div (ac coupled)

OUT

= 2 A/div

OUT

Time = 100 µs/div

2 A to 6 A load step,

slew rate = 1 A / µsec

= 2 V/div

OUT

Time = 5 ms/div

SS/TR = 1 V/div

= 10 V/div

PWRGD = 5 V/div

TPS54821

www.ti.com

SLVSB14B – OCTOBER 2011 – REVISED FEBRUARY 2016

Product Folder Links: TPS54821

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8.2.3 Application Curves

Figure 31. Load Transient

Figure 32. STARTUP with VIN

Figure 33. STARTUP with EN

Figure 34. STARTUP with PRE-BIAS

Figure 35. Output Voltage RipplE with Full Load

Figure 36. Input Voltage RipplE with Full Load

TPS54821 Datasheet(PDF) 27 Page - Texas Instruments

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