Description

The SC2447 is a versatile high-frequency dual phase PWM step-down controller optimized for Philips and Renesas DrMOSTM. Both phases are capable of sourcing or sinking load currents, making the SC2447 suitable for networking system power and DDR applications.

Features

◆ 2-Phase Step-down Controller optimized for Philips or Renesas DrMOSTM

◆ Out of Phase Operation for Low Input Current Ripple

◆ Outputs Source and Sink Current

◆ Fixed Frequency Peak Current-Mode Control

◆ Lossless Inductor DCR Current Sensing

◆ Optional Resistor Current-Sensing for Precise Current-Limit

◆ Dual 30A Outputs or 2-Phase 60A Single Output Operation

◆ Wide Input Voltage Range: 4.65V to 15V

◆ Individual Closed-Loop Soft-Start, Overload Shutdown Timer and Enable

◆ Output Voltage as Low as 0.5V

◆ Starts into Pre-Bias Output

◆ Tri-State PWM Output during Shutdown

◆ Programmable Frequency Up to 1MHz Per Phase

◆ External Synchronization

◆ TSSOP-28 Lead-free Package. Fully WEEE and RoHS Compliant

Applications

◆ Telecommunication Power Supplies

◆ DDR Memory Power Supplies

◆ Graphic Power Supplies

◆ Servers and Base Stations