FAN5026MTC

The FAN5026 PWM controller provides high efficiency and regulation for two output voltages adjustable in the range from 0.9V to 5.5V that are required to power I/O, chip-sets, and memory banks in high-performance computers, set top boxes, and VGA cards. Synchronous rectification contributes to high efficiency over a wide range of loads. Efficiency is even further enhanced by using MOSFET’s RDS(ON) as a current sense component.
Features
• Highly flexible dual synchronous switching PWM controller includes modes for:
– DDR mode with in-phase operation for reduced channel interference
– 90° phase shifted two-stage DDR Mode for reduced input ripple
– Dual Independent regulators 180° phase shifted
• Complete DDR Memory power solution
– VTT Tracks VDDQ/2
– VDDQ/2 Buffered Reference Output
• Lossless current sensing on low-side MOSFET or Precision current sensing using sense resistor
• VCC Under-voltage Lockout
• Wide power input range: 3 to 16V
• Excellent dynamic response with Voltage Feed-Forward and Average Current Mode control
• Power-Good Signal
• Supports DDR-II and HSTL
• TSSOP28 packageApplications
• DDR VDDQ and VTT voltage generation
• Desktop computer
• Graphics cards