TPS54294_15 datasheet(9/30 Pages) TI

Part #	TPS54294

Description	2A Dual Channel Synchronous Step-Down Switcher with Integrated FET

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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9 / 30 page

0

0.2

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0.6

0.8

1

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I - Output Current - A

O

1.45

1.46

1.47

1.48

1.49

1.5

1.51

1.52

1.53

1.54

1.55

V = 12 V

I

V = 5 V

I

V = 18 V

I

0

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V - Input Voltage - V

I

3.2

3.22

3.24

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3.28

3.3

3.32

3.34

3.36

3.38

3.4

I

= 1 A

o1

I

= 10 mA

o1

0

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1

1.2

1.4

1.6

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I - Output Current - A

O

3.2

3.22

3.24

3.26

3.28

3.3

3.32

3.34

3.36

3.38

3.4

V = 12 V

I

V = 5 V

I

V = 18 V

I

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5

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EN Input Voltage - V

VIN1 = VIN2 = 12V

EN1 = EN2 = ON

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-50

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T - Junction Temperature - °C

J

TPS54294

www.ti.com

SLVSB00D – OCTOBER 2011 – REVISED SEPTEMBER 2013

TYPICAL CHARACTERISTICS

One output is enabled unless otherwise noted. VI = VIN1 or VIN2.

VIN = 12 V, TA = 25°C (unless otherwise noted).

Figure 1. Input Current vs Junction Temperature

Figure 2. Input Shutdown Current vs Junction Temperature

Figure 3. EN Current vs EN Voltage (VEN=12V)

Figure 4. VO1=3.3V Output Voltage vs Output Current

Figure 5. VO2=1.5V Output Voltage vs Output Current

Figure 6. VO1=3.3V Output Voltage vs Input Voltage

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