LX1662/62A, LX1663/63A

PRODUCT DA T ABOOK 1996/1997

Copyright © 1999

Rev. 1.1 11/99

10

FIGURE 8 — Pentium II Processor Application With OVP, Power Good And Loss-Less Current Sensing (Synchronous)

SS

TDRV

V

CC

INV

V

CC_CORE

VID0

VID1

VID2

VID3

OV

C

T

BDRV

GND

V

C1

U1

LX1663

VID3

C

5

1µF

12V

R

S

V

OUT

5V

16-pin

Narrow Body SOIC

Q

1

IRL3102

L

6.3V, 1500µF x 3**

16

15

14

13

12

11

1

2

3

4

5

6

7

10

C

8

680pF

VID2

VID1

VID0

VID4

C

3

0.1µF

Supply Voltage

for CPU Core

6.3V

1500µF x3

** Three capacitors for Pentium

Four capacitors for Pentium II

Q

2

IRL3303

VID4

PWRGD

89

OV

PWRGD

C

2

C

1

F

1

20A

C

S

APPLICA TION INFORMATION

FIGURE 9 — Full-Featured Pentium II Processor Supply With 12V Power Input

SS

TDRV

V

CC

INV

V

CC_CORE

VID0

VID1

VID2

VID3

OV

C

T

BDRV

GND

V

C1

U1

LX1663

VID3

C

9

1µF

12V

R

1

V

OUT

16-pin

Narrow Body SOIC

Q

1

IRL3102

L

6.3V, 1500µF x 3**

16

15

14

13

12

11

1

2

3

4

5

6

7

10

C

VID2

VID1

VID0

VID4

C

3

0.1µF

2.5m

9

Supply Voltage

for CPU Core

16V

1500µF x3

** Three capacitors for Pentium

Four capacitors for Pentium II

Q

2

IRL3303

VID4

PWRGD

89

PWRGD

R

2

10k

Q

3

SCR

2N6504

C

10

0.1µF

R

7

10

D

3

1N4148

D

2

1N4148

C

2

C

1

C

D

4

1N5817

F