UR5515 Datasheet, PDF (1/8 Pages) Unisonic Technologies – 1.5A/3A BUS TERMINATION REGULATOR

UNISONIC TECHNOLOGIES CO., LTD
UR5515
CMOS IC

1.5A/3A BUS TERMINATION
REGULATOR
SOP-8
DESCRIPTION
The UTC UR5515 is a linear bus termination regulator and
designed to convert voltage supplies ranging from 1.6V~6.0V into a
desired output voltage, which adjusted by two external voltage
divider resistors. The device can both source and sink up to 1.5A/3A
of current while regulating an output voltage to within 2% (DDR-I)
and 3% (DDR-II) or less.
The UTC UR5515 is capable of use in conjunction with series
termination resistors to provide an excellent voltage source for active
termination schemes of high speed transmission lines as those seen
in high speed memory buses and distributed backplane designs.
The voltage output of the regulator can be used as a termination
voltage for DDR SDRAM.


FEATURES
* Support Both DDR-I (1.25 V_TT) and DDR-II (0.9 V_TT) Requirements
* Capable of Sourcing and Sinking Current 1.5A/3A
* Current-limiting Protection and Thermal Shutdown Protection
* Integrated Power MOSFETs
* Generates Termination Voltages for SSTL-2
* High Accuracy Output Voltage at Full-Load
* Adjustable output voltage by External Resistors
* Minimum External Components
* Shutdown for Standby or Suspend Mode Operation with
High-impedance Output.
1
TO-252-5
1
TO-263-5
*Pb-free plating product number: UR5515L
ORDERING INFORMATION
Order Number
Normal
Lead Free Plating
UR5515-S08-R UR5515L-S08-R
UR5515-S08-T UR5515L-S08-T
UR5515-TN5-R UR5515L-TN5-R
UR5515-TN5-T UR5515L-TN5-T
UR5515-TQ5-R UR5515L-TQ5-R
UR5515-TQ5-T UR5515L-TQ5-T
Package
SOP-8
SOP-8
TO-252-5
TO-252-5
TO-263-5
TO-263-5
Packing
Tape Reel
Tube
Tape Reel
Tube
Tape Reel
Tube
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Copyright © 2005 Unisonic Technologies Co., LTD
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QW-R502-056,A