LT8697EUDD datasheet(6/28 Pages) LINEAR_DIMENSIONS

Part #	LT8697EUDD

Description	USB 5V 2.5A Output, 42V Input Synchronous Buck with Cable Drop Compensation

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Manufacturer	LINEAR_DIMENSIONS [Linear Dimensions Semiconductor]

Direct Link	http://www.lineardimensions.com

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6 / 28 page

LT8697

6

8697p

For more information www.linear.com/LT8697

Typical perForMance characTerisTics

Switch Drop vs Temperature

TA = 25°C, unless otherwise noted.

Dropout Voltage vs ILOAD

Switching Frequency

vs Temperature

Switching Frequency vs ILOAD

Switching Frequency vs VSYS

Switch Drop vs ISW

Minimum On-Time

vs Temperature

Minimum Off-Time

vs Temperature

Minimum Off-Time

vs Temperature

TEMPERATURE (°C)

–55

0

150

250

50

100

200

5

8697 G16

155

–25

35

65

95

125

TOP SW

BOTTOM SW

SWITCH CURRENT = 1A

SWITCH CURRENT (A)

0

150

350

50

100

300

250

200

1

8697 G17

2.5

0.5

1.5

2

BOTTOM SW

TOP SW

LOAD CURRENT (A)

0

600

100

200

300

400

500

1

8697 G21

2.5

0.5

1.5

2

DCRL = 20mΩ

RSENSE = 18m

LOAD CURRENT (A)

0.0001

1900

2100

2050

1950

2000

0.01

8697 G23

10

0.001

0.1

1

RT = 16.5k

VSYS (V)

0

2500

2000

1500

500

1000

2

8697 G24

5

1

3

4

RT = 16.5k

TEMPERATURE (°C)

–55

70

80

100

35

95

8697 G18

60

50

–25

5

65

125

155

40

30

90

ILOAD = 0A

ILOAD = 0.9A

ILOAD = 2.1A

TEMPERATURE (°C)

–55

75

80

90

95

100

65

120

8697 G19

85

5

–25

95

125

35

155

105

110

115

ILOAD = 0A

ILOAD = 0.9A

ILOAD = 2.1A

RT = 30.1k

SYNC = 3V

TEMPERATURE (°C)

–55

95

35

8697 G20

80

70

–25

5

65

60

100

90

85

75

95

125 155

ILOAD = 0A

ILOAD = 0.9A

ILOAD = 2.1A

RT = 30.1k

SYNC = 1.2MHz

TEMPERATURE (°C)

–55

1.80

1.95

2.20

1.85

1.90

2.15

2.05

2.10

2.00

5

8697 G22

155

–25

35

65

95

125

RT = 16.5k

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LT8697EUDD Datasheet(PDF) 6 Page - Linear Dimensions Semiconductor

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