Controller delivers 1% output accuracy & simplifies designs

The device has a wide input voltage range of 4.5V to 22V and delivers an adjustable output voltage from 0.6V to 18V. Boasting a 0.1% line regulation across the entire input voltage range and 1% output accuracy over full temperature range, XRP6141 provides increased headroom to engineers for easier design implementations. The emulated current mode COT control scheme has the fast transient response of conventional COT control loops without any of the compromises. The COT control loop enables operation with ceramic output capacitors, eliminating loop compensation, which simplifies system design and reduces overall component count. Additionally, the controller offers a host of supervisory and protection features for proper sequencing, safe operation under abnormal operating conditions and light load operation. Further to this, the device delivers core voltage rails for ASICs, FPGAs, DSPs and Network Processors in communications, networking and industrial markets.

"The XRP6141 has been developed in response to customer demands, particularly in telecommunications systems but also for enterprise computing, industrial and medical markets, and many other applications using high power FPGAs and DSPs," commented James Lougheed, Vice President, Power Management and AMS products, Exar. "The adoption of COT architectures in these segments provides the benefit of improved regulator transient response without the need for additional output capacitance. Hardware engineers responsible for board level power systems will appreciate Exar's unique implementation, which makes the XRP6141 easy to design with and keeps the component count low."

The XRP6141 is available now in a RoHS compliant, green/halogen free space-saving 16-pin 3x3 QFN package. It is priced from $1.29 in 1000 piece quantities.