描述 Description

Descriptions:
The CNS4644 is a quad DC/DC step-down uModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capability. Included in the package are the switching controllers, powerFETs, inductors and support components. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the CNS4644 supports an output voltage range of 0.6V to 5.5V. Its high efficiency design delivers 4A continuous (5A peak) output current per channel. Only bulk input and output capacitors are needed.
Applications:

Multirail Point of Load Regulation

FPGAs, DSPs and ASICs Applications

特性 Features

Dual, 180° Phased Controllers Reduce Required?Input Capacitance and Power Supply InducedNoise
High Efficiency: Up to 95%
RSENSE or DCR Current Sensing
Programmable DCR Temperature Compensation
±0.75% 0.6V Output Voltage Accuracy
Phase-Lockable Fixed Frequency 250kHz to 770kHz
True Remote Sensing Differential Amplifier
Dual N-Channel MOSFET Synchronous Drive
Wide VIN Range: 4.5V to 38V
VOUT Range: 0.6V to 12.5V without Differential Amplifier
VOUT Range: 0.6V to 3.3V with Differential Amplifier
Clock Input and Output for Up to 12-Phase Operation
Adjustable Soft-Start or VOUT Tracking
Foldback Output Current Limiting
Output Overvoltage Protection
40-Pin (6mm × 6mm) QFN and 38-Lead FE Packages