XLSEMI

Datasheet

2.1A 100KHz 90V Buck DC to DC Converter

XL7056

Rev 1.2

www.xlsemi.com

7

Typical System Application (VOUT=15V, IOUT=0~1.2A)

XL7056

L1 100uH/2A

CIN

100uF

/100V

C2

105

R2

30K

1%

R1

2.7K

1%

D1

FSV10150

SW

FB

GND

VIN

VIN

20V~80V

7

4

2

1

CFF

10nF

COUT

100uF

/35V

R3

0.055Ω 1%

C1

104

VOUT

15V/0~1.2A

INPUT

20V~80V

OUTPUT 15V/0~1.2A

VOUT=1.25*(1+R2/R1)

CSP

5

3

CSN

CC

105

VC

6

Figure7. XL7056 System Application (VIN=20V~80V, VOUT=15V, IOUT=0~1.2A)

0.1

0.2

0.3

0.4

0.5

0.6

0.7

0.8

0.9

1.0

1.1

1.2

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

95

100

Efficiency VS Output current

Output current(A)

VIN=24V,VOUT=15V,IOUT=0.1A~1.2A

VIN=36V,VOUT=15V,IOUT=0.1A~1.2A

VIN=48V,VOUT=15V,IOUT=0.1A~1.2A

VIN=60V,VOUT=15V,IOUT=0.1A~1.2A

VIN=72V,VOUT=15V,IOUT=0.1A~1.2A

Figure8. XL7056 System Application (Efficiency VS Output Current)