TPS54341_15 datasheet(8/48 Pages) TI

Part #	TPS54341

Description	4.5-V to 42-V Input, 3.5-A Step-Down DC-DC Converter With Soft-Start and Eco-mode?

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Manufacturer	TI [Texas Instruments]

Direct Link	http://www.ti.com

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8 / 48 page

±5.5

±5.3

±5.1

±4.9

±4.7

±4.5

±4.3

±4.1

±3.9

±3.7

±3.5

±50

±25

0

25

50

75

100

125

150

T

J Junction - Temperature (C)

VIN = 12 V, IEN = Threshold + 50 mV

C011

V

IN = 12 V, IEN = Threshold + 50 mV

±2.5

±2.3

±2.1

±1.9

±1.7

±1.5

±1.3

±1.1

±0.9

±0.7

±0.5

±50

±25

0

25

50

75

100

125

150

T

J Junction - Temperature (C)

VIN = 12 V, IEN = Threshold + 50 mV

C012

V

IN = 12 V, IEN = Threshold - 50 mV

20

30

40

50

60

70

80

90

100

110

120

±50

±25

0

25

50

75

100

125

150

T

J Junction - Temperature (C)

VIN = 12 V

C009

V

IN = 12 V

1.15

1.18

1.21

1.24

1.27

1.3

±50

±25

0

25

50

75

100

125

150

T

J Junction - Temperature (C)

VIN = 12 V

C010

V

IN = 12 V

200

250

300

350

400

450

500

±50

±25

0

25

50

75

100

125

150

T

J Junction - Temperature (C)

VIN = 12 V

C008

V

IN = 12 V

0

500

1,000

1,500

2,000

2,500

0

50

100

150

200

RT/CLK - Resistance (k

)

C007

TPS54341

SLVSC61 – NOVEMBER 2013

www.ti.com

TYPICAL CHARACTERISTICS (continued)

SWITCHING FREQUENCY

vs

EA TRANSCONDUCTANCE

RT/CLK RESISTANCE

vs

HIGH FREQUENCY RANGE

JUNCTION TEMPERATURE

Figure 7.

Figure 8.

EA TRANSCONDUCTANCE DURING SOFT-START

EN PIN VOLTAGE

vs

JUNCTION TEMPERATURE

Figure 9.

Figure 10.

EN PIN CURRENT

vs

JUNCTION TEMPERATURE

Figure 11.

Figure 12.

8

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