XLSEMI

Datasheet

2.1A 100KHz 90V Buck DC to DC Converter

XL7056

Rev 1.2

www.xlsemi.com

9

Typical System Application (VOUT=3.3V, IOUT=0~2.1A)

XL7056

L1 100uH/3A

CIN

100uF

/100V

C2

105

R2

13.7K

1%

R1

8.2K

1%

D1

FSV10150

SW

FB

GND

VIN

VIN

8V~80V

7

4

2

1

CFF

10nF

COUT

220uF

/16V

R3

0.035Ω 1%

C1

104

VOUT

3.3V/0~2.1A

INPUT

8V~80V

OUTPUT 3.3V/0~2.1A

VOUT=1.25*(1+R2/R1)

CSP

5

3

CSN

CC

105

VC

6

Figure11. XL7056 System Application (VIN=8V~80V, VOUT=3.3V, IOUT=0~2.1A)

0.1 0.2 0.3 0.4 0.5 0.6 0.7 0.8 0.9 1.0 1.1 1.2 1.3 1.4 1.5 1.6 1.7 1.8 1.9 2.0 2.1

15

20

25

30

35

40

45

50

55

60

65

70

75

80

85

90

Efficiency VS Output current

Output current(A)

VIN=12V,VOUT=3.3V,IOUT=0.1A~2.1A

VIN=24V,VOUT=3.3V,IOUT=0.1A~2.1A

VIN=36V,VOUT=3.3V,IOUT=0.1A~2.1A

VIN=48V,VOUT=3.3V,IOUT=0.1A~2.1A

VIN=60V,VOUT=3.3V,IOUT=0.1A~2.1A

VIN=72V,VOUT=3.3V,IOUT=0.1A~2.1A

Figure12. XL7056 System Application (Efficiency VS Output Current)