Switching controller delivers 0.008%/V line regulation
1 min read
Designed to simplify point of load supply designs in industrial applications, the XR75100 is the latest switching controller to roll out of Exar's line of DC/DC power conversion products.
The new controller supports point of load supplies from industrial 24VDC and 24VAC rectified sources. Exar says the emulated current mode Constant On-Time (COT) control scheme provides the fast transient response of conventional COT controllers without any of the compromises.
The XR75100 is designed to deliver core voltage rails for ASICs, FPGAs, DSPs and other processors in the medical, automotive, instrumentation and industrial markets.
It offers 0.008%/V line regulation across the entire input voltage range and 1% output accuracy over full temperature range.
The COT control loop enables operation with ceramic output capacitors, eliminating loop compensation and reducing overall component count for ease of system design.
The XR75100 is specified with a wide input voltage range of 5 to 40V and delivers an adjustable output voltage from 0.6 to 30V.
Additionally, the device offers a host of supervisory and protection features for proper sequencing, safe operation under abnormal operating conditions and light load operation.
