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2A Peak Sink/Source DDR Termination Regulator GS7903
Features
Input Voltage (VCNTL): Supports 3.3V Rail
General Description
The GS7903 is a sink/source Double Data Rate
and 5V Rail
VIN Voltage Range: 1.0V to VCNTL
High Accuracy Output Voltage at Full Load
Output Adjustment by Two External
Resistors
Stable with Output Ceramic Capacitor
Low External Component Count
Current Limit Protection
On-Chip Thermal Protection
Built-in Soft Start, UVLO
Supports DDR2, DDR3, and Low-Power
DDR3/DDR4 VTT Applications
TDFN8-2x2 and PSOP-8 Package
Green Product (RoHS, Lead-Free,
Halogen-Free Compliant)
Applications
Memory Termination Regulator for DDR,
(DDR) termination regulator. It is a simple,
cost-effective and high speed linear regulator.
Designed with low on-resistance NMOSFETs, the
device can capable of sinking/sourcing up to peak
2A output current.
The GS7903 provides a fast load transient
response and only requires a minimum output
capacitance of 20uF.
The output termination voltage can be tightly
regulated to track VDDQ/2 by tow external
voltage divider resistors or the desired output
voltage can be programmed by externally forcing
the REFEN pin voltage.
In addition, the GS7903 includes over current
limit and thermal shutdown to prevent the
regulator from damage. The built-in soft start
minimizes stress on the input power source to
reduce the capacitive inrush current on start-up.
DDR2, DDR3 and Low-Power DDR3/DDR4
Notebook/Desktop/Server
Telecom/Datacom, GSM Base Station,
LCD-TV/PDP-TV, Copier/Printer, Set-Top Box
The GS7903 is available in the thermally efficient
TDFN8-2x2 and PSOP-8 package.
Green Solution Technology Co.,LTD.
Rev.:1.4 1 Jul-15
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