LX1664/1664A, LX1665/65A

PRODUCT DA T ABOOK 1996/1997

9

Copyright © 1999

Rev. 1.2 11/99

APPLICA TION INFORMATION

FIGURE 6 — LX1664 In A Pentium / Socket 7 Single-Chip Power Supply Controller Solution (Synchronous)

SS

TDRV

V

CC

INV

V

CC_CORE

VID0

VID1

VID2

VID3

L

DRV

C

T

BDRV

GND

V

C1

U1

LX1664

VID3

C

5

1µF

12V

R

1

V

OUT

5V

16-pin

Narrow Body SOIC

Q

1

IRL3102

L

6.3V, 1500µF x 3**

14

13

12

11

10

9

1

2

3

4

5

6

7

C

8

680pF

VID2

VID1

VID0

VID4

C

3

0.1µF

2.5m

9

Supply Voltage

for CPU Core

6.3V

1500µF x3

** Three capacitors for Pentium

Four capacitors for Pentium II

VID4

L

FB

Supply Voltage

For I/O Chipset or GTL+ Bus

8

16

15

Q

2

IRL3303

C

2

C

1

Q

4

IRLZ44

R

5

R

6

C

7

330µF

C

9

330µF

FIGURE 7 — LX1664 In A Non-Synchronous / Socket 7 Power Supply Application

SS

TDRV

V

CC

INV

V

CC_CORE

VID0

VID1

VID2

VID3

L

DRV

C

T

BDRV

GND

V

C1

U1

LX1664

VID3

C

5

1µF

12V

R

1

V

OUT

5V

16-pin

Narrow Body SOIC

Q

1

IRL3102

L

6.3V, 1500µF x 3**

14

13

12

11

10

9

1

2

3

4

5

6

7

C

8

680pF

VID2

VID1

VID0

VID4

C

3

0.1µF

0.005

Supply Voltage

for CPU Core

6.3V

1500µF x3

** Three capacitors for Pentium

Four capacitors for Pentium II

VID4

L

FB

D

1

Supply Voltage

For I/O Chipset or GTL+ Bus

8

16

15

C

2

C

1

Q

4

IRLZ44

R

5

R

6

C

7

330µF

C

9

330µF