LX1668

PRODUCT DA T ABOOK 1996/1997

9

Copyright © 1999

Rev. 1.0

4/99

BILL OF MA TERIALS

U1

Controller IC

LX1668 - LinFinity

1

C1

Capacitor, 1500µF, 6.3V, 44m

Ω ESR

MV-GX Sanyo

6

C2

Capacitor, 1500µF, 6.3V, 44m

Ω ESR

MV-GX Sanyo

3

C4, C6

Capacitor, 330µF, Electrolytic

MV-GX Sanyo

2

C5

Capacitor, 22µF, Electrolytic

MV-GX Sanyo

2

C7, C8, C9

Capacitor, 1µF, SMD

2

C3

Capacitor, 1µF, SMD, 16V

1

CSS

Capacitor, 0.1µF, SMD

1

Q1

MOSFET (low R

IRL3102/3103, International Rectifier

1

Q2

MOSFET (low R

IRL3303/3103, International Rectifier

1

Q3

MOSFET

IRLZ44N, International Rectifier

1

R

SENSE

Sense Resistor, 2.5m

Ω

PCB trace

1

R1

Resistor, 0

Ω (see Table 6)

SMD

1

R2

Resistor, 2.5m

Ω (see Table 6)

SMD

1

L1

Inductor, 2 - 3µH

HM00-97713 or HM00-98637, BI Technologies

1

L2

Inductor, 1µH

1

Total Number of Components

26

Optional Components for Over-Voltage Protection and Power Good Signal

Q4

SCR

2N6504

1

R3

Resistor, 10k

Ω

SMD

1

Ref

Description

Part Number / Manufacturer

Qty.

LX1668 Bill of Materials

(Refer to Product Highlight)

FIGURE 6 — Pentium III Processor Power Supply (Whitney / Camino Chipsets)

1k

LM358

V

CC

V

CC1

Clock

Camino/Whitney

Chipset

RIMM

Memory

220µF

220µF

220µF

220µF

12V

GTL+

CPU

LX1668

5V

3.3V

12V

1.5 - 2V @ 16A

[VRM 8.2/8.4]

1.5V @ 3A

2.5V @ 0.2A

1.8V @ 3A

2.5V @ 2A

Synch.

Switcher

External

LDO

APPLICA TION CIRCUIT