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FDMS8680 Datasheet(PDF) 24 Page - Texas Instruments

Part # FDMS8680
Description  Complete DDR2, DDR3 and DDR3L Memory Power Solution Synchronous Buck
PDF  34 Pages
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Manufacturer  TI1 [Texas Instruments]
Direct Link  http://www.ti.com
Logo TI1 - Texas Instruments

FDMS8680 Datasheet(HTML) 24 Page - Texas Instruments

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1
2
3
4
15
14
13
12
VTTSNS
U1
TPS51916RUK
VLDOIN
VTT
VTTGND
VBST
DRVH
SW
V5IN
5
11
VTTREF
DRVL
10
9
8
7
6
16
17
18
19
20
21
C6
1 mF
UDG-10196
C7
0.1 mF
C8
10 mF
C9
10 mF
VIN
8 V to 20 V
PGND
R6
0 W
C5
0.1 mF
R7 0 W
L1
1 mH
Q2
FDMS8670AS
C10
4 x 47 mF
VDDQ_GND
PGND
R5
49.9 kW
R4
10 kW
C3
0.1 mF
C4
10 nF
C2
0.22 mF
C1
10 mF
C12
10 mF
PGND
VTT
0.75 V/2 A
VTTREF
0.75 V
VTTGND
S5
S3
R1
100 kW
R2 1 kW
R3 36 kW
V5IN
4.5 V to 5.5
V
Q1
FDMS8680
VDDQ
1.5 V/10 A
AGND
PGND
AGND PGND
TPS51916
SLUSAE1D – DECEMBER 2010 – REVISED JUNE 2012
www.ti.com
Figure 40. DDR3, DCAP-2™ 500-kHz Application Circuit, Tracking Discharge
Table 4. DDR3, DCAP-2™ 500-kHz Application Circuit, List of Materials
REFERENCE
QTY
SPECIFICATION
MANUFACTURE
PART NUMBER
DESIGNATOR
C8, C9
2
10 µF, 25 V
Taiyo Yuden
TMK325BJ106MM
C10
4
47 µF, 6.3 V
TDK
C2012X5R0J476M
L1
1
1 µH, 18.5 A, 2.3 m
Ω
NEC Tokin
MPC1055L1R0C
Q1
1
30 V, 35 A, 8.5 m
Ω
Fairchild
FDMS8680
Q2
1
30 V, 42 A, 3.5 m
Ω
Fairchild
FDMS8670AS
24
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Copyright © 2010–2012, Texas Instruments Incorporated



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