XRP2997_12 Datasheet, PDF (7/8 Pages) Exar Corporation – 2A DDR I/II/III Bus Terminatio nRegulator

XRP2 99 7
2A DDR I / I I / I I I Bus Term inat ion Regulat or
APPLICATION INFORMAT ION
recommended for optimum transient response
pe rformance.
I NPUT CAPACITOR CIN
Select the input capacitor CIN for voltage
LAYOUT CONSIDERATIONS
rating, RMS current rating and capacitance.
The XRP299 7 is offered in the 8 - pin exposed -
The voltage rating should be at least 50%
pad SOIC package in order to facilitate power
KLJKHU WKDQ WKH UHJXODWRU¶^diV^ss^ipaP^tioDⁿ [LP^(hX^eaP^t  L^dQ^issS^ipX^atiW^on^{) . Power}
voltage. The value o f this capacitor , its charge,
dissipation can be maximized by soldering the
should be select ed in order to be able to
exposed pad to a large land area on top layer
supply enough current to the XRP2997 in the
of PCB and by using vias to connect the
event of a transient increase of source current
exposed pad to an interlayer (s) or bottom
required. A minimum value of 10 µF is advised
layer. All capacitors should be placed as close
while a recomm ended value of 47 µF is
as possible to the respective pins.
PACKAGE SPECIFICATIO N
8 - PIN SOIC EXPOSED PAD
Unit: mm (inch)
Eject hole, oriented hole and mold mark are optional.
© 2012 Exar Corporation
7/ 8
Rev. 1.2.0