Latest four-channel IC offers industry's most advanced feature set, lowest power consumption, and highest flexibility for any programmable power controller
Exar Corporation added a significant new controller to its PowerXR family of programmable power system ICs. The XRP7724 is a highly integrated programmable power controller with the industry's most advanced design capabilities, robust performance and the most flexible design environment in the industry. With expanded voltage and current ranges, SMBus compliant I2C interface, and independently controlled channel frequencies, the XRP7724 is flexible enough to handle the most demanding applications spanning mobile to industrial to high-performance computing. Our patented Digital Pulse Frequency Modulation (DPFM) technology lowers standby current enabling system designers to meet strict green power requirements.
PowerXR ICs integrate the best of both worlds; the low cost and flexibility of digital power control as well as the robust power capabilities of high performance analog power switchers. PowerXR products reduce development time from weeks to hours enabling a significant time-to-market advantage for system design engineers. Using the PowerArchitect™ design tool, engineers can easily modify voltage, current, GPIO or other parameters in seconds. Engineers can tweak design parameters throughout the design cycle, qualification into final test, and even when deployed in the field.
Key Product Features
The XRP7724 offers a wide input voltage range (4.75 V to 25 V), and output range (0.6 V to 5.1 V), with a built-in Low-Dropout regulator (LDO) for standby power, power sequencing capability, and integrated gate drivers. These power system ICs contain patented Digital Pulse Frequency Modulator (DPFM) with ultrasonic mode. The ICs contain an integrated LDO regulator that provides a fifth voltage supply, which can also be employed as a standby-voltage source. The devices contain integrated gate drivers for the switching outputs and up to six General Purpose Input/Output (GPIO) pins. Exar's PowerArchitect™ software design tool enables designers to intelligently configure the power supply's voltage setting and current thresholds, fault monitoring and response, soft start and active shutdown timing, and channel sequencing, phase shift management, and loop response, amongst other features. The ICs use a digital PID (proportional, integral, differential) control algorithm that performs full-digital loop control at switching frequencies to 1.2 MHz.
Additional Information, Pricing, and Availability
Samples of the XRP7724 are in 60 days. Offered in a RoHS compliant, "green"/halogen free 44 pin TQFN package respectively operating within the -40ºC to +125ºC temperature range. The XRP7724 is priced at $6.50 in 1K piece quantities.
