US3005CW UNISEM [UNISEM], US3005CW Datasheet - Page 6

• Manufacturer Part Number: US3005CW
• Description: 5 BIT PROGRAMMABLE SYNCHRONOUS BUCK CONTROLLER IC WITH DUAL LDO CONTROLLER
• Manufacturer: UNISEM [UNISEM]

US3004,US3005
TYPICAL APPLICATION
TYPICAL APPLICATION
Pentium III
4-6
VID4
VID3
VID2
VID1
VID0
Figure 2- Typical application of US3004 or 3005 in an on board DC-DC converter providing the Core ,
C1
3.3V
12V
5V
C13
C2
R18
13
1
C3
C4
L1
Ct
SS
Table2, describing the differences between 3004 and 3005 applications.
V12
12
D4
15
PART #
US3004
US3005
C5
GTL+, and Clock supplies for the Pentium II microprocessor.
D3
V5
16
5
C6
R1
CS+
D2
17
8
R2
HDrv
US3004
Q1
D1
18
9
CS-
D0
19
7
R3
R7 VALUE
SEE PARTS LIST
SHORT
LDrv
PGd
11
C8
6
R5
3.3V
Vfb2
Gnd
10
4
Q2
Power Good
Vfb3
Lin2
14
20
Vfb1
Lin1
C7
R4
C9
2
3
R16
L2
R9
R12
R11
C15
R17
C16
R8 VALUE
SEE PARTS LIST
OPEN
R13
Q3
Q4
C14
C10
Vout 3
R14
R15
R7
R8
3004app2-2.0
C11
C12
Vout 1
Vout 2
Rev. 1.2
12/8/00