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RT9174CS 数据表(PDF) 3 Page - Richtek Technology Corporation

部件名 RT9174CS
功能描述  Triple Linear Regulator Controllers
PDF  8 Pages
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制造商  RICHTEK [Richtek Technology Corporation]
网页  http://www.richtek.com
标志 RICHTEK - Richtek Technology Corporation

RT9174CS 数据表(HTML) 3 Page - Richtek Technology Corporation

  RT9174CS Datasheet HTML 1Page - Richtek Technology Corporation RT9174CS Datasheet HTML 2Page - Richtek Technology Corporation RT9174CS Datasheet HTML 3Page - Richtek Technology Corporation RT9174CS Datasheet HTML 4Page - Richtek Technology Corporation RT9174CS Datasheet HTML 5Page - Richtek Technology Corporation RT9174CS Datasheet HTML 6Page - Richtek Technology Corporation RT9174CS Datasheet HTML 7Page - Richtek Technology Corporation RT9174CS Datasheet HTML 8Page - Richtek Technology Corporation  
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Preliminary
RT9174
DS9174-00 April 2001
www.richtek-ic.com.tw
3
VO3
2.5V
RT9174
4
3
2
1
DRI1
DRI2
DRI3
FB1
FB2
FB3
GND
VDD
5
6
7
8
+
+
R4
250
Q2
PHD45N03LT
R5
200
C3
470
µF
C1
1
µF
Q1
PHD45N03LT
R2
624
R3
200
C2
1000
µF
5V
VO1
3.3V
Fig 3. Triple LDOs Driving MOS Application
R8
3K
R1
5K
R9
1.2K
7.5V
C5
0.1
µF
12V
R6
424
R7
200
VO2
1.8V
Q3
PHD45N03LT
3.3V
C4
470
µF
+
RT9174
4
3
2
1
DRI1
DRI2
DRI3
FB1
FB2
FB3
GND
VDD
5
6
7
8
+
+
R4
113
Q2
2SD1802
R5
200
C3
470
µF
C1
1
µF
R1
5K
C6
10nF
D1
1N4148
R8
1K
C5
0.1
µF
Q1
PHD45N03LT
R2
4.3K
R3
4.99K
VTTPG
VTT
5V
3.3V
#TYPEDET
3.3V
12V
VDDQ
1.5/ 3.3V
VDDQ = 3.3V if FB1
>1.3V
#TYPEDET = 0V
→VDDQ = 1.5V
#TYPEDET = Open
→VDDQ = 3.3V
VTTSEL = 0V
→VTT = 1.25V
VTTSEL = 5V
→VTT = 1.5V
Fig 2. Dual LDOs with VTTPG for VRM8.5 Application
3.3V
C7
1
µF
R6
3K
Q3
MMBT3904
R9
1K
R10
1K
C8
0.01
µF
R11
374
VTTSEL
Q4
2N7002
R12
8.2K



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