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FDMS8680 Datasheet(PDF) 8 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) 8 Page - Texas Instruments

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10
13
PGND
SW
TPS51916
OC
ZC
XCON
15 VBST
12 V5IN
PWM
9
REFIN
TRIP
Delay
20 PGOOD
Control Logic
UDG-12074
10 ?A
+
+
VREFIN +20%
+
+
8
VDDQSNS
+
+
18
14 DRVH
11 DRVL
tON
One-
Shot
UV
OV
VREFIN –32%
16
S5
Soft-Start
+
NOC
+
8 R
6
VREF
R
7
GND
17
S3
5
VTTREF
1
VTTSNS
4
VTTGND
3
VTT
+
+
+
+
2
VLDOIN
7 R
R
VTT Discharge
VTTREF Discharge
Mode
Selection
15 ?A
19 MODE
VREFIN +8/16 %
VREFIN –8/16 %
+
+
VDDQ
Discharge V5OK
+
4.4 V/3.9 V
UVP
OVP
G
+
1.8 V
Σ
D-CAP: Open,
D-CAP2: Short
TPS51916
SLUSAE1D – DECEMBER 2010 – REVISED JUNE 2012
www.ti.com
FUNCTIONAL BLOCK DIAGRAM
8
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Copyright © 2010–2012, Texas Instruments Incorporated



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