XRP6124中文资料Non-Synchronous PFET Step-Down Controller数据手册MaxLinear规格书

描述 Description

The XRP6124 is a non synchronous step-down (buck) controller for up to 5Amps point-of-loads. A wide 3V to 30V input voltage range allows for single supply operations from industry standard 3.3V, 5V, 12V and 24V power rails.
With a proprietary Constant On-Time (COT) control scheme, the XRP6124 provides extremely fast line and load transient response while the operating frequency remains nearly constant. It requires no loop compensation hence simplifying circuit implementation and reducing overall component count. The XRP6124 also implements an emulated ESR circuitry allowing usage of ceramic output capacitors and insuring stable operations without the use of extra external components.
Built in soft-start prevents high inrush currents while under voltage lock-out and output short-circuit protections insure safe operations under abnormal operating conditions.
The XRP6124 supports input voltages up to 18V while the XRP6124HV supports input voltages up to 30V. Both options are available in a RoHS compliant, green/halogen free space-saving 5-pin SOT23 package.

特性 Features

·5A point-of-load capable step-down controller·Down to 1.2V output voltage conversion

·Wide input voltage range·3V to 18V: XRP6124
·4.5V to 30V: XRP6124HV

·Constant on-time operations – 500ns·Up to 1MHz constant frequency operations
·No external compensation
·Supports ceramic output capacitors

·Fast transient response
·Built-in 2ms soft-start
·Short circuit protection
·<1µA shutdown current
·RoHS Compliant, Green/Halogen Free 5-pin SOT23 package

应用 Application

·Point-of-load conversions
·Audio-video equipment
·Industrial and medical equipment
·Distributed power architecture