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FAN1655MX View Datasheet(PDF) - Fairchild Semiconductor

Part Name
Description
View to exact match
FAN1655MX
Fairchild
Fairchild Semiconductor Fairchild
FAN1655MX Datasheet PDF : 9 Pages
1 2 3 4 5 6 7 8 9
January 2006
FAN1655
3A DDR Bus Termination Regulator
Description
The FAN1655 is a low-cost bi-directional LDO
specifically designed for terminating DDR memory bus. It
can both sink and source up to 2.1A continuous, 3A
peak, providing enough current for most DDR appli-
cations. Load regulation meets the JEDEC spec, VTT =
VREFOUT ± 40mV.
The FAN1655 includes a buffered reference voltage
capable of supplying up to 5mA current. On-chip thermal
limiting provides protection against a combination of
power overload and ambient temperature that would
create an excessive junction temperature. A shutdown
input puts the FAN1655 into a low power mode.
The FAN1655 regulator is available in a power-enhanced
eTSSOP™-16, standard SOIC-14, and an 8-Lead MLP
package.
Features
Sinks and sources 2.1A continuous, 3A peak
0 to +125°C operating temperature range
5mA Buffered VREFOUT = VDDQ/2
Load regulation: VTT = VREFOUT ± 40mV
On-chip thermal limiting
Low Cost SO-14, Power-Enhanced eTSSOP or
8-pin 5x6mm MLP packages
Low-Current Shutdown Mode
Output Short Circuit Protection
Applications
DDR Terminator VTT supply
Ordering Information
Part Number
Temperature Range
FAN1655M
FAN1655MX
0°C to 125°C
0°C to 125°C
FAN1655MTF
FAN1655MTFX
FAN1655MPX
0°C to 125°C
0°C to 125°C
0°C to 125°C
Block Diagram
Package
SOIC-14
SOIC-14
eTSSOP-16
eTSSOP-16
MLP-8
VDDQ
VDD
VDD VDD SHDN
VREFOUT
VREFIN
200k
+
+
200k
FAN1655
VSSQ
VSS VSS VSS
Packing
Rails
Tape and Reel
Rails
Tape and Reel
Tape and Reel
VTTFORCE
VTTFORCE
VTTSENSE
©2006 Fairchild Semiconductor Corporation
1
FAN1655 Rev. 1.1.5
www.fairchildsemi.com
 

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