AME
Rev.C.01 1
AME9172M Bus Termination Regulator
The AME9172M is a voltage regulator which could con-
vert the input voltage ranging from 1.2V to 3.0V to an
output voltage that user settled. The regulator can pro-
vide 2A sourcing or sinking current. The AME9172M 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 AME9172M maintains stable, only requires 10µF (or
10µFx2) of ceramic output capacitance.
The voltage output of the regulator can be used as a
termination voltage for DDR SDRAM.
Current limits in both sourcing and sinking mode, plus
on-chip thermal shutdown make the circuit tolerant of the
output fault conditions.
l DDR Memory Termination Supply
l Active Termination Buses
l Desktop PC
l Supply Splitters
l Set Top Box/IPC
n General Description
n Features
n Applications
l Support All DDR2 (0.9VTT)
、DDR3(0.75VTT) and DDR3L (0.675)
Requirements
l Capable of Sourcing and Sinking 2A Current
l Current-limiting Protection
l Thermal Protection
l Integrated Power MOSFETs
l Generates Termination Voltages for SSTL-2
l High Accuracy Output Voltage at Full-Load
l Adjustable VOUT by External Resistors
l Minimum External Components
l Shutdown for Standby or Suspend Mode
Operation with High-impedance Output
l All AME’s Lead Free Products Meet RoHS
Standards
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