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PDF SC2595 Data sheet ( Hoja de datos )
| Número de pieza | SC2595 | |
| Descripción | Integrated Linear DDR Termination Regulator | |
| Fabricantes | Semtech Corporation | |
| Logotipo |  |
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Hay una vista previa y un enlace de descarga de SC2595 (archivo pdf) en la parte inferior de esta página. Total 11 Páginas | ||
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POWER MANAGEMENT
Description
The SC2595 is an integrated linear DDR termination
device, which provides a complete solution for DDR
termination designs; while meeting the JEDEC require-
ments of SSTL-2 specifications for DDR-SDRAM termi-
nation.
The SC2595 can source and sink 1.5A current at the
output VTT while maintaining excellent load regulation.
www.DataVShTTeeits4Ud.ceosmigned to track the VREF voltage with a tight
tolerance over the entire current range while preventing
shoot through on the output stage.
A VSENSE pin is incorporated to provide excellent load
regulation, along with a buffered reference voltage.
SC2595
Integrated Linear DDR
Termination Regulator
Features
Regulates while sourcing or sinking 1.5A
AVCC range is from 2.5V to 5V
Reference output
Minimum number of external components
Accurate internal voltage divider
SOIC-8L EDP package. Also available in Lead-free
package, fully WEEE and RoHS compliant
Applications
DDR memory termination
High speed data line termination
PC motherboards
Graphics boards
Disk drives
CD-ROM drives
The SC2595 incorporates a disable function built into
the AVCC pin to tri-state the output during Suspend To
Ram (STR) states.
(Multiple patents pending.)
Typical Application Circuit
VDD
VREF
SC2595
1 NC
VTT 8
2 GND
PVCC 7
36
VSENSE AVCC
4 VREF
VDDQ 5
VTT
Revision: June 12, 2007
1
www.semtech.com
1 page  
SC2595
POWER MANAGEMENT
Notes:
(1) Can be used for vias.
(2) Power up of AVCC, PVCC and VDDQ supplies.
(a) The preferred mode of operation is when the AVCC, PVCC and VDDQ pins are tied together to a single supply.
(b) If and when
lead AVCC, PVCC
AsVuCpC,pPlyVoCCr
pins are
the VDDQ
tied to
supply
a supply separate
and the AVCC, PVCC
to that
supply
oshf tohueldVrDiDsQessuipmpulyltpainne; othuesnly.the
VDDQ
supply
should
(c) If the AVCC, PVCC and VDDQ supply pins are connected in a way such that, AVCC, PVCC supplies precedes VDDQ supply;
then VTT output precedes VDDQ. This can cause the SDRAM device to latch-up, which may cause permanent
damage to the SDRAM.
www.DataSBhleoetc4Uk.cDomiagram
AVCC
VDDQ
VREF
GND
-
OUT
+
UVLO
+
OUT
-
Driver
Circuit
PVCC
VTT
VSENSE
NC
© 2007 Semtech Corp.
5
www.semtech.com
5 Page 
SC2595
POWER MANAGEMENT
Outline Drawing - Power SOIC-8L
www.DataSheet4U.com
2X E/2
A
N
eD
E1 E
12
ccc C
2X N/2 TIPS
e/2
B
aaa C
SEATING
PLANE
C
D
A2 A
A1
bxN
bbb C A-B D
F
DIMENSIONS
DIM
INCHES
MIN NOM MAX
MILLIMETERS
MIN NOM MAX
A .053 - .069 1.35 - 1.75
A1 .000 - .005 0.00 - 0.13
A2 .049 - .065 1.25 - 1.65
b .012 - .020 0.31 - 0.51
c .007 - .010 0.17 - 0.25
D .189 .193 .197 4.80 4.90 5.00
E1 .150 .154 .157 3.80 3.90 4.00
E .236 BSC
6.00 BSC
e .050 BSC
1.27 BSC
F .086 .090 .094 2.19 2.29 2.39
h .010 - .020 0.25 - 0.50
L .016 .028 .041 0.40 0.72 1.04
L1 (.041)
(1.05)
N8
8
01 0
-8 0
-8
aaa .004
0.10
bbb .010
0.25
ccc .008
0.20
h
EXPOSED PAD
h
H
F
GAGE
PLANE
0.25
L
(L1)
SIDE VIEW
SEE DETAIL A
DETAIL A
NOTES:
1. CONTROLLING DIMENSIONS ARE IN MILLIMETERS (ANGLES IN DEGREES).
2. DATUMS -A- AND -B- TO BE DETERMINED AT DATUM PLANE -H-
3. DIMENSIONS "E1" AND "D" DO NOT INCLUDE MOLD FLASH, PROTRUSIONS
OR GATE BURRS.
4. REFERENCE JEDEC STD MS-012, VARIATION BA.
c
01
Land Pattern - Power SOIC-8L
(C) F
THERMAL VIA
? 0.36mm
P
E
D
SOLDER MASK
Z
G
Y
X
DIM
C
D
E
F
G
P
X
Y
Z
DIMENSIONS
INCHES
MILLIMETERS
(.205)
(5.20)
.098
2.49
.201
.096
.118
.050
.024
.087
.291
5.10
2.44
3.00
1.27
0.60
2.20
7.40
NOTES:
1. THIS LAND PATTERN IS FOR REFERENCE PURPOSES ONLY.
CONSULT YOUR MANUFACTURING GROUP TO ENSURE YOUR
COMPANY'S MANUFACTURING GUIDELINES ARE MET.
2. REFERENCE IPC-SM-782A, RLP NO. 300A.
3. THERMAL VIAS IN THE LAND PATTERN OF THE EXPOSED PAD
SHALL BE CONNECTED TO A SYSTEM GROUND PLANE.
FAILURE TO DO SO MAY COMPROMISE THE THERMAL AND/OR
FUNCTIONAL PERFORMANCE OF THE DEVICE.
Contact Information
© 2007 Semtech Corp.
Semtech Corporation
Power Management Products Division
200 Flynn Road, Camarillo, CA 93012
Phone: (805)498-2111 FAX (805)498-3804
11
www.semtech.com
11 Page | ||
| Páginas | Total 11 Páginas | |
| PDF Descargar | [ Datasheet SC2595.PDF ] | |
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