MAX8551

Integrated DDR Power-Supply Solutions for Desktops, Notebooks, and Graphic Cards

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Product Lifecycle Obsolete

The models in this product family are no longer available.

Replacement Parts

To find replacement products for this part:

Rochester Electronics and Arrow Supply Assurance have partnered with Analog Devices to source products that have been previously discontinued or have become obsolete.

Evaluation Kits (1)

MAX8550EVKIT

Evaluation Kit for the MAX8550, MAX8550A, MAX8551

MAX8550EVKIT

View Detailed Evaluation Kit Information

The MAX8550 evaluation kit (EV kit) is designed to evaluate the MAX8550 DDR power-supply solution for notebooks, desktops, and graphics cards. The EV kit board produces VDDQ at the output of the synchronous PWM buck, VTT at the output of the sourcing/sinking LDO linear regulator, and VTTR at the output of the reference buffer.

The VDDQ output is preset to 2.5V and sources up to 12A. The VTT output is always VDDQ/2 and can source/sink up to 3A of peak current and 1.5A of continuous current. The VTTR output is also always VDDQ/2 and can source/sink up to 10mA.

The MAX8550 EV kit was conveniently designed with jumpers to select the OVP/UVP, TON, SKIP-bar, STBY, and SHDN_-bar modes. The board's default settings enable OVP (overvoltage protection), 600kHz switching frequency, low-noise PWM mode, VDDQ, VTT, and VTTR.

The VIN input accepts voltages from 9V to 20V and VDD requires a 5V bias supply.

The EV kit comes with the MAX8550 installed. Contact the factory for free samples of the MAX8550A or MAX8551 to evaluate these parts.

Applications

DDR I and DDR II Memory Power Supplies
Desktop Computers
Game Consoles
Graphic Cards
Networking
Notebooks and Desknotes
RAID

Features & Benefits

VDDQ Preset to 2.5V/12A

VTT 1.25V Source/Sink 1.5A Continuous/3A Peak

VTTR 1.25V Source/Sink 10mA

VIN Range: 9V to 20V

Optimized Switching Frequency: 600kHz

Overvoltage/Undervoltage Protection

Standby

Independent Shutdown

Power OK

Documentation & Resources

Data Sheets

MAX8550-MAX8551: Integrated DDR Power-Supply Solutions for Desktops, Notebooks, and Graphic Cards Data Sheet (Rev. 3)
6/7/2013

PDF

582K

Design Resources

ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.