TPS54521 datasheet(29/35 Pages) TI

tên linh kiện	TPS54521

Giải thích chi tiết về linh kiện	4.5V to 17V Input, 5A Synchronous Step Down SWIFT??Converter

PDF	35 Pages

Scroll/Zoom	100%

nhà sản xuất	TI [Texas Instruments]

Trang chủ	http://www.ti.com

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29 / 35 page

Time = 1

sec / div

Vin = 200 mV / div (AC coupled)

Inductor Current = 2 A / div

PH = 10 V / div

Vin = 12 V

Time = 20 msec / div

Vout = 2 V / div

Inductor Current = 10 A / div

PH = 10 V / div

Vin = 12 V

Load = 0.1

SS/TR = 1 V / div

-60

-50

-40

-30

-20

-10

Frequency - Hz

-180

-150

-120

-90

-60

-30

120

150

180

Phase

Gain

Vin = 12 V

Load = 5 A

-0.05

-0.04

-0.03

-0.02

-0.01

0.01

0.02

0.03

0.04

0.05

Input Voltage - V

Iout = 0A

Iout = 2.5A

Iout = 5A

-0.05

-0.04

-0.03

-0.02

-0.01

0.01

0.02

0.03

0.04

0.05

1.5

2.5

3.5

4.5

Output Current - A

Vin = 8V

Vin = 10 V

Vin = 12 V

Vin = 15 V

Vin = 17 V

0.5

0.000001

0.00001

0.0001

0.001

0.01

0.1

0.001

0.01

0.1

Track In Voltage - V

0.000001

0.00001

0.0001

0.001

0.01

0.1

Ideal Vsense

Vout

Vsense

TPS54521

www.ti.com

SLVS981 – JUNE 2010

INPUT VOLTAGE RIPPLE

(0.66

Ω Load)

OVERCURRENT HICCUP MODE

Figure 45.

Figure 46.

CLOSED LOOP RESPONSE

LINE REGULATION

Figure 47.

Figure 48.

LOAD REGULATION

TRACKING PERFORMANCE

Figure 49.

Figure 50.

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