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PDF AME9172M Data sheet ( Hoja de datos )
| Número de pieza | AME9172M | |
| Descripción | Bus Termination Regulator | |
| Fabricantes | Analog Microelectronics | |
| Logotipo |  |
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AME
AME9172M
n General Description
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.
Bus Termination Regulator
n Applications
l DDR Memory Termination Supply
l Active Termination Buses
l Desktop PC
l Supply Splitters
l Set Top Box/IPC
n Features
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
Rev.C.01
1
1 page  
AME
AME9172M
n Absolute Maximum Ratings
Bus Termination Regulator
Parameter
Input Voltage. VIN to GND
ESD Classification
Symbol
VIN
Maximum
6
B*
Unit
V
Caution: Stress above the listed absolute maximum rating may cause permanent damage to the device.
* HBM B: 2000V~3999V
n Recommended Operating Conditions
Parameter
Symbol
Rating
Unit
Supply Voltage to VIN
VIN ( 1.5 to 2.5 ) ± 3%
V
Supply Voltage to VCNTL
VCNTL
( 3.3 or 5 ) ± 5%
V
Output Current of VOUT Pin *
Junction Temperature Range
Storage Temperature Range
Ambient Temperature Range
*IOUT
TJ
TSTG
TA
-2 to 2
-40 to +150
-65 to +150
-40 to +85
A
oC
oC
oC
* The symbol "+" means the VOUT sources current to load; the symbol "-" means the VOUT sinks current
to GND
Rev.C.01
5
5 Page 
AME
AME9172M
Bus Termination Regulator
n Characterization Curve (For reference only)
Dynamic Load
Frequency=2.5KHZ, VIN=1.4V
IOUT = 0.1A~1.8A and 1.8A~0.1A
VCNTL=5.0V, Sink
Dynamic Load
Frequency=2.5KHZ, VIN=1.8V
IOUT = 0.1A~1.8A and 1.8A~0.1A
VCNTL=5.0V, Sink
Ch1= VIN , Ch2= VCNTL
Ch3= VOUT , Ch4= IOUT
Output Voltage vs Temperature
0.92
Sink,V CNTL=3 .3V
0.91
0.90
Source,V CNTL =3.3 V
Sink ,VCNTL= 5.0 V
0.89
0.88
Source ,VCNTL=5.0 V
0.87
0.86 VIN = 1.8V
0.85
-50
-25
0 +25 +50 +75
Temperature (oC)
+100
+125
Ch1= VIN , Ch2= VCNTL
Ch3= VOUT , Ch4= IOUT
Output Voltage vs Temperature
0. 76
0. 75
Sink ,VCNTL= 3.3V
Sink ,V CNTL =5.0 V
0. 74
Source,V CNTL=5 .0V
0. 73
0.72 Source,VCNTL=3.3V
0.71 VIN = 1.5V
0. 70
-50
-25
0 +25 +50 +75 +100 +125
Temperature (oC)
Rev.C.01
11
11 Page | ||
| Páginas | Total 15 Páginas | |
| PDF Descargar | [ Datasheet AME9172M.PDF ] | |
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