XRP6141中文资料35A Synchronous Step-Down COT Controller数据手册MaxLinear规格书

描述 Description

The XRP6141 is a synchronous step-down controller for point-of load supplies up to 35A. A wide 4.5V to 22V input voltage range allows for single supply operation from industry standard 5V, 12V and 19.6V rails.
With a proprietary emulated current mode Constant On-Time (COT) control scheme, the XRP6141 provides extremely fast line and load transient response using ceramic output capacitors. It requires no loop compensation hence simplifying circuit implementation and reducing overall component count. The control loop also provides exceptional line regulation and maintains constant operating frequency. A selectable power saving mode, allows the user to operate in Discontinuous Mode (DCM) at light current loads thereby significantly increasing the converter efficiency.
A host of protection features, including overcurrent, over temperature, short-circuit and UVLO, help achieve safe operation under abnormal operating conditions.
The XRP6141 is available in RoHS compliant, green/halogen free space-saving 16-pin 3 x 3 QFN package.

特性 Features

·35A capable step-down controller·Wide input voltage range·5V to 22V single supply
·4.5V to 5.5V low VIN

·Integrated high current 2A/3A drivers
·0.6V adjustable output voltage

·Proprietary constant on-time control·No loop compensation required
·Ceramic output cap. stable operation
·Programmable 200ns-2µs
·Constant 200kHz-800kHz Frequency
·Selectable CCM or CCM/DCM operation

·Programmable current limit·110ms hiccup mode

·Precision enable and power good flag
·Programmable soft-start
·Integrated bootstrap diode
·16-pin QFN packages

应用 Application

·Networking and communications
·Fast transient point-of-loads
·Industrial and medical equipment
·Embedded high power FPGA
·Enterprise solutions