2010-04-27

XRP6142 Synchronous COT Step-Down Controller with DDR Memory Termination

The XRP6142 is a synchronous step down switching controller for over 15
Amps point-of-loads converters and optimized to generate and support DDR I,
II and III memory voltages requirements. Optimized to operate from standard
3.3V and 5V rails, it supports conversions down to 0.5V from an input voltage
as low as 1V. The XRP6142 is based on a constant on-time control scheme,
operates at a constant switching frequency over the whole input voltage range
and comes in three selectable on-time options.

Features
• Over 15A Point-of-Load Capable
• Down to 0.5V Output Voltage Conversion
• Up to 96% Efficiency
• Wide 1.0V-5.5V Input Voltage Range Conversions
• Single Input 3.3V and 5V rails Operations
• Constant On-Time Operations
• Three Selectable TON Options:
0.5μs/1.0μs/2.0μs
• Constant Frequency Operations
• No External Compensation
• DDR I, II & III Termination Support
• VDDQ/VDD or VTT Voltages Generation
• Buffered VTT Reference Voltage Generation
• Soft-Start and Enable Functions

Target Applications
• High-Power Point-of-Loads Converters
• DDR Memory Based Embedded Systems
• Audio-Video Equipments
• Graphic/Video Cards
• FPGA and DSP Power Supplies

Your Contact:

Christian Wessel-Berning
Phone: +49 (0) 5424 2340-28
Email: cwessel-berning@mev-elektronik.com