SC2595 Semtech Corporation, SC2595 Datasheet - Page 7
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SC2595
Manufacturer Part Number
SC2595
Description
Integrated Linear DDR Termination Regulator
Manufacturer
Semtech Corporation
Datasheet
1.SC2595.pdf
(11 pages)
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Layout guidelines
Layout guidelines
Layout guidelines
1)The SC2595 has a power SO-8 package. It can im-
prove the thermal impedance (
thermal pad should be added when PCB layout. Some
thermal vias are required to connect the thermal pad to
the PCB ground layer. This will improve the thermal per-
formance .
2)To increase the noise immunity, a ceramic capacitor of
10nf to 100nf is required to decouple the V
the shortest connection trace, also A 10nF to 100nF
ceramic capacitor close to the V
avoid oscillation during transient condition.
3)To reduce the noise on the input power rail for stan-
dard SSTL-2 application, a 68µF low ESR capacitor and
a 1µF ceramic capacitor have to be used on the input
power rail with shortest possible connection.
4)For lower power loss SSTL-2 application, a 220µF AL.
capacitor (ESR should be lower than 250m ohm) and a
10µF ceramic has to be added on the PV
ceramic capacitor +5.1 ohm filter has to be added on
the V
5)V
6)V
© 2007 Semtech Corp.
Layout guidelines
Layout guidelines
POWER MANAGEMENT
Application Information (Cont.)
TT
SENSE
DDQ
output copper plane should be as large as possible.
trace should be as short as possible.
pin with shortest possible connection.
θ
JC
) significantly. A suitable
SENSE
pin is required to
CC
pin and a 1µF
REF
pin with
7
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SC2595