LT8646S datasheet(2/8 Pages) LINER

Part #	LT8646S

Description	65V, 8A Synchronous Step-Down Silent Switcher 2

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Manufacturer	LINER [Linear Technology]

Direct Link	http://www.linear.com

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dc2660af

DEMO MANUAL DC2660A

DESCRIPTION

Figure 1. LT8646S Demo Circuit DC2660A Efficiency

vs Load Current (Input from VIN Terminal)

Figure 2. LT8646S Demo Circuit DC2660A Case Temperature

Rising vs Input Voltage (2MHz)

Figure 3. LT8646S Demo Circuit DC2660A Case Temperature

Rising vs Input Voltage (500kHz)

POWER LOSS

VOUT = 5V

fSW = 2MHz

SYNC/MODE = GND

EFFICIENCY

VIN=12V

VIN=24V

LOAD CURRENT (A)

1

2

3

4

5

6

7

8

60

65

70

75

80

85

90

95

100

0

0.8

1.6

2.4

3.2

4.0

4.8

5.6

6.4

DC2660A F01

IOUT = 8A

IOUT = 6A

IOUT = 4A

INPUT VOLTAGE (V)

12

18

24

30

36

42

48

54

60

0

10

20

30

40

50

60

70

80

90

100

DC2660A F02

VOUT = 5V

fSW = 2MHz

IOUT = 8A

IOUT = 6A

IOUT = 4A

INPUT VOLTAGE (V)

12

18

24

30

36

42

48

54

60

0

10

20

30

40

50

60

70

80

90

100

DC2660A F03

VOUT = 5V

fSW = 500kHz

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LT8646S Datasheet(PDF) 2 Page - Linear Technology

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