參數(shù)資料
型號: IRU3034CS
英文描述: 8 Pin PWM Switcher CIC with Current Limiting in a 8-Pin SOIC(NB) package
中文描述: 8引腳的PWM Switcher的議會與當前在8引腳SOIC(注)封裝限制
文件頁數(shù): 8/14頁
文件大?。?/td> 83K
代理商: IRU3034CS
4-10
Rev. 1.2
12/8/00
IRU3004, IRU3005
TYPICAL APPLICATION
Pentium with AGP
Figure 3 - Typical application of IRU3004 in a Pentium with AGP where the power dissipation of the 3.3V
linear regulator is equally distributed between Q3 and Q4 pass transistors. This equal distribution is
possible by accurately regulating the first regulator using the IRU3004 linear controller and its internal
1% reference voltage while the second controller regulates the output of the first regulator from 4.17V to
3.3V, thereby distributing the power dissipation equally.
VID0
Power Good
3004app3-1.4
3.3V
C9
Q4
VID1
VID2
VID3
VID4
Q3
R7
R8
C11
C12
R5
C8
C1
C2
3.3V
R9
R11
C15
C14
R14
R15
Vout 3
5V
12V
3.3V
Q2
L1
L2
C5
R1
C3
C4
C6
Q1
R2
R3
C7
R4
C10
C13
R12
R16
R17
R13
C16
R18
12
V12
HDrv
LDrv
Ct
SS
CS+
Gnd
Vfb3
D3
16
D2
17
D4
15
D1
18
D0
19
PGd
6
IRU3004
Lin1
Vfb1
CS-
V5
Vfb2
4
Lin2
20
5
8
9
7
11
10
14
3
2
13
1
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