US3004 参数 Datasheet PDF下载

US3004,US3005

TYPICAL APPLICATION

Pentium III

L1

L2

Q1

R16

C5

C13

C3

R2

R3

R1

C7

Q2

R4

R12

R13

C16

C10

R17

5V

Vout 3

3.3V

C4

C6

Q3

C11

R18

12

V12

1 Ct

C1

13 SS

C2

D4

15

D3

16

D2

17

D1

18

D0

19

PGd

6

Vfb2

4

5

V5

8

CS+

9

HDrv

7

CS-

11

LDrv

10

Gnd

14

Vfb3

Lin1 2

R7

R11

C15

Vfb1 3

Lin2

20 C9

R14

3004app2-2.0

Vout 1

12V

US3004

R8

Q4

C12

Vout 2

VID4

VID3

VID2

VID1

VID0

3.3V

R5

R9

C14

R15

Power Good

C8

Figure 2- Typical application of US3004 or 3005 in an on board DC-DC converter providing the Core ,

GTL+, and Clock supplies for the Pentium II microprocessor.

PART #

US3004

US3005

R7 VALUE

SEE PARTS LIST

SHORT

R8 VALUE

SEE PARTS LIST

OPEN

Table2, describing the differences between 3004 and 3005 applications.

4-6

Rev. 1.2

12/8/00