ISL6244HR

多相PWM控制器 Multi-Phase PWM Controller

The ISL6244 provides core-voltage regulation by driving 2 to 4 interleaved synchronous-rectified buck-converter channels in parallel. Interleaving the channel timing results in increased ripple frequency which reduces input and output ripple currents. The reduction in ripple results in lower component cost, reduced dissipation, and a smaller implementation area.

Features

• Multi-Phase Power Conversion

\- 2, 3 or 4 Phase Operation

• Active Channel Current Balancing

• Precision rDSONCurrent Sharing

\- Lossless

-Low Cost

• Precision CORE Voltage Regulation

\- Differential Remote Output Voltage Sensing

\- Programmable Reference Offset

\- ±1% System Accuracy

• Microprocessor Voltage Identification Input

\- 5-Bit VID Input

\- 0.800V to 1.550V in 25mV Steps

\- Dynamic VID Technology

• Programmable Droop Voltage

• Excellent Dynamic Response

\- Combined Input Voltage Feed-Forward and Pulse-by-Pulse Average Current Mode

• Over Current Protection

• Digital Soft Start

• Threshold Sensitive Enable Input

• High Ripple Frequency 160kHz to 4MHz

• QFN Package:

\- Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline

\- Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile

• Pb-Free Available RoHS Compliant