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DC/DC Regulation
DDR Memory Termination
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DDR Memory/Bus Termination
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DDR Memory/Bus Termination
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2-Phase, Spread Spectrum, DDR Memory Supplies with Ceramic Output Capacitors DDR Memory Power Supply: 2.5V to 5.5Vin, 0.75V@+/-6A Vtt, 0.75V@10mA Vref, 1MHz External Clock DDR Memory Power Supply: 2.5V to 5.5Vin, 1.25V@+/-6A Vtt, 1.25V@10mA Vref, 2.25MHz DDR Memory Power Supply: 3.3Vin, 0.9V@+/-3A Vtt (with 1.8V external reference) DDR Memory Power Supply: 3.3Vin, 0.9V@+/-3A Vtt, 1.8V@3A Vddq, 0.9V@10mA Vref DDR Memory Power Supply: 3.3Vin, 1.5V@+/-3A Vtt (2.5V external reference) DDR Memory Power Supply: 3.6V to 15Vin, 1.8V@3A Vddq, 0.9V@+/-3A Vtt, 0.9V@10mA Vref DDR Memory Power Supply: 3.6V to 15Vin, VTT Powered from VDDQ DDR Memory Power Supply: 4V to 24Vin, 1.25V@+/-10A Vtt (2.5V external reference) DDR Memory Power Supply: 5V to 28Vin, 1.5V@+/-10A Vtt (3V external reference) DDR Memory Power Supply: 5Vin, 1.25V@+/-6A Vtt (2.5V external reference) DDR3 1.5V VDDQ/20A 0.75VTT/±10A 4.5V to 14V Input
DDR Memory Power Supply: 2.5V to 5.5Vin, 1.25V@+/-6A Vtt, 1.25V@10mA Vref, 2.25MHz
The LTC3617 is a high efficiency monolithic synchronous buck regulator utilizing a current mode, constant frequency architecture. It operates from an input voltage range of 2.25V to 5.5V and provides a regulated output voltage equal to 0.5 • VDDQIN while sourcing and sinking up to 6A of load current. An internal amplifier provides a VTTR output voltage equal to 0.5 • VDDQIN with an output current capability of ±10mA.