SMB113A/B/SMB117/A

Preliminary Information

Summit Microelectronics, Inc

2111 2.4 6/24/2008

23

APPLICATIONS INFORMATION (CONTINUED)

Figure 10 – Applications schematic showing SMB117 operation from a +5V input supply with 10A output

current capability.

R30

47K

R11 0

R39 100

C20

22uF

R28 10K

C22

0.1uF

R13 0

C46

22uF

C47

0.1uF

R29 499

C48

330pF

C49

22pF

C50

3300pF

CH3

1

C11

0.1uF

HOST_RESET

1

TP15

VBATT

1

R37 100

C13

0.1uF

R24 10K

Q6

FDS6675BZ

1

2

3

4

5

6

7

8

L2

2.0uH

C40

22uF

C41

0.1uF

Q7

FDS6680AS

1

2

3

4

5

6

7

8

R25 499

C42

330pF

D10

C43

22pF

C44

3300pF

CH1

1

PWREN0

1

C27

22uF

C29

0.1uF

R17 0

U1

SMB117

HSDRV_CH0

1

HEALTHY

2

COMP1_CH0

3

COMP2_CH0

4

VM_CH0

5

SDA

6

SCL

7

LSDRV_CH1

8

HVSUP1

9

HSDRV_CH1

10

HOST_RESET

11

COMP1_CH1

12

COMP2_CH1

13

VM_CH1

14

VDDCAP

15

VBATT

16

LSDRV_CH2

17

HVSUP2

18

HSDRV_CH2

19

COMP2_CH2

20

COMP1_CH2

21

VM_CH2

22

LSDRV_CH3

23

HVSUP3

24

HSDRV_CH3

25

PWREN0

26

COMP2_CH3

27

COMP1_CH3

28

VM_CH3

29

LSDRV_CH0

31

HVSUP0

32

C19

0.1uF

R14 100

L3

2.0uH

C21

0.1uF

C31

22uF

C32

0.1uF

R20 0

L1

2.0uH

CH2

1

VBATT

Optional For Programming SMB113A

SCL

SDA

VBATT

L4

2.0uH

R1 10K

C5

22uF

C7

0.1uF

R2 499

C8

330pF

C9

22pF

C10

3300pF

R3 100

VBATT

CH0

1

R9

2K

HEALTHY/nRESET

1

R18 0

Q10

FDS6675BZ

1

2

3

4

5

6

7

8

Q11

FDS6680AS

1

2

3

4

5

6

7

8

D9

VBATT

VBATT

DongleVCC

J1

I2C

Gnd

1

SCL

2

Gnd3

3

SDA

4

Rsrv5

5

MR

6

+10V

7

Rsrv8

8

+5V

9

Rsrv10

10

SDA

SCL

DongleVCC

R7

47K

D2

VBATT

Q12

FDS6675BZ

1

2

3

4

5

6

7

8

Q13

FDS6680AS

1

2

3

4

5

6

7

8

SW1

VBATT

Q8

FDS6675BZ

1

2

3

4

5

6

7

8

Q9

FDS6680AS

1

2

3

4

5

6

7

8

D11

D8

VBATT

R15 0

R21 0

C14

0.1uF

C15

1uF

C1

0.1uF

C2

1uF

C16

22uF

C17

0.1uF

R5 0

R22 10K

C34

22uF

C35

0.1uF

R23 499

C36

330pF

C37

22pF

C38

3300pF