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UR5515 Datasheet

1.5A/3A BUS TERMINATION REGULATOR

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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.
1 TO-252-5
1 TO-263-5
*Pb-free plating product number: UR5515L
FEATURES
* Support Both DDR-I (1.25 VTT) and DDR-II (0.9 VTT) 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.
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
www.unisonic.com.tw
Copyright © 2005 Unisonic Technologies Co., LTD
1 of 8
QW-R502-056,A



UTC
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UR5515 Datasheet Preview

UR5515 Datasheet

1.5A/3A BUS TERMINATION REGULATOR

No Preview Available !

UR5515 pdf
UR5515
CMOS IC
PIN DESCRIPTION
SOP-8
1
2
5,6,7,8
3
4
PIN NO.
TO-252-5/TO-263-5
1
2
3
4
5
PIN NAME
VIN
GND
VCNTL
VREF
VOUT
DESCRIPTION
Input Voltage
Ground
Gate Drive Voltage
Reference Voltage Input and Chip Enable
Output Voltage
BLOCK DIAGRAM
VCNTL
VIN
VREF
Current
Limiting
Sensor
Thermal
CNTL
VOUT
GND
UNISONIC TECHNOLOGIES CO., LTD
www.unisonic.com.tw
2 of 8
QW-R502-056,A


Part Number UR5515
Description 1.5A/3A BUS TERMINATION REGULATOR
Maker UTC
Total Page 8 Pages
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