TPS652510_15 datasheet(9/31 Pages) TI

Part #	TPS652510

Description	4.5-V TO 16-V INPUT, HIGH CURRENT, SYNCHRONOUS STEP DOWN THREE DC-DC CONVERTERS WITH INTEGRATED FET

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Manufacturer	TI [Texas Instruments]

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3

3.1

3.2

3.3

3.4

3.5

3.6

3.7

3.8

3.9

-40

-20

0

20

40

60

Temperature - °C

buck2 = 2 A,

buck3 = 2 A

buck2 = 0 A,

buck3 = 0 A

20

30

40

50

60

70

80

90

0

0.5

1

1.5

2

2.5

3

Current - A

V = 12 V

I

V = 15 V

I

V = 4.5 V

I

1.21

1.215

1.22

1.225

1.23

-40

-20

0

20

40

60

Temperature - °C

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

I_BUCK3 - A

3.365

3.37

3.375

3.38

3.385

I_buck1 = 0.25 A,

I_buck2 = 0.25 A

I_buck1 = 1 A,

I_buck2 = 1 A

I_buck1 = 2 A,

I_buck2 = 2 A

0

0.5

1

1.5

2

2.5

3

I_BUCK1 - A

1.2

1.205

1.21

1.215

1.22

1.225

I_buck2 = 2 A,

I_buck3 = 2 A

I_buck2 = 1 A,

I_buck3 = 1 A

I_buck2 = 0.25 A,

I_buck3 = 0.25 A

1.8

1.805

1.81

1.815

1.82

1.825

0

0.2

0.4

0.6

0.8

1

1.2

1.4

1.6

1.8

2

I_BUCK2 - A

I_buck2 = 2 A,

I_buck3 = 2 A

I_buck1 = 1 A,

I_buck3 = 1 A

I_buck1 = 0.25 A,

I_buck3 = 0.25 A

TPS652510

www.ti.com

SLVSB30B – SEPTEMBER 2011 – REVISED AUGUST 2013

TYPICAL CHARACTERISTICS

Load Regulation: Buck1 @ 1.2V, 1% Resistor Feedback

Load Regulation: Buck2 @ 1.8V, 1% Resistor Feedback

Figure 1.

Figure 2.

Buck1 Temp Variation @ 1.2V, 1%Resistor

Load Regulation: Buck3 @ 3.3V, 1% Resistor Feedback

-40°C to 75°C, Buck1 = 3A, Buck2 = 2A, Buck3 = 2A

Figure 3.

Figure 4.

Current Limit Variation 25°C,

Buck1 1.2V Efficiency, Forced PWM

RLIM1 = 100k

Ω, RLIM2&3 = 120kΩ

L = 4.7µH, 20m

Ω, fSW = 500KHz

Figure 5.

Figure 6.

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