SC2447EVB中文资料先之科数据手册PDF规格书

描述 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.

特性 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