AT9173 Datasheet PDF

AME AT9173

The AT9173 is a voltage regulator which could convert the input voltage ranging from 1.8V to 5V to an output voltage that user settled. The regulator can provide sourcing or sinking current.The AT9173, used in conjunction with series termination resistors, provides 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.

Part No.	AT9173
Datasheet	AT9173 Download
Manufacturer	AME
Description	Bus Termination Regulator
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GENERAL DESCRIPTION

Current limits in both sourcing and sinking mode, plus on-chip thermal shutdown make the circuit tolerant of the output fault conditions. n

FEATURES

Support Both DDR I (1.25VTT) and DDR II (0.9VTT) Requirements Capable of Sourcing and Sinking Current Current-limiting Protection Thermal Protection Integrated Power MOSFETs Generates Termination Voltages for SSTL-2 High Accuracy Output Voltage at Full-Load Adjustable VOUT by External Resistors Minimum External Components Shutdown for Standby or Suspend Mode Operation with High-impedance Output n

APPLICATIONS

DDRI/DDRII Memory Termination Supply Active Termination Buses Desktop PC,NoTebook,Server and workstation Graphic Card Set Top Box Embedded System n Typical Application DDR_2.5V R2 100KΩ C4 0.1uF C2 470uF AT9173A-SOP 8 1 VIN VCNTL 8 2 GND VCNTL 7 3 REFEN VCNTL 6 4 VOUT VCNTL 5 VCC_3.3V DDR_VTT 1.25V/1.5A R4 100KΩ AT9173A SOP-8 C8 4.7uF C6 470uF Rev. C.06 1 AME AT9173 n Typical Application(Contd.) Bus Termination Reg...

AT9173 Datasheets by Manufacturer

1 datasheets

Part Number	Manufacturer
AT9173	Attansic