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Programmable quad output PMIC powers any FPGA, SoC or DSP

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By eeNews Europe

The XR77129’s patented control architecture is suitable for 40 V inputs using a 17-bit wide PID voltage mode VIN feed forward architecture. The controller offers a single input, quad output, step-down switching regulator controller with integrated gate drivers and dual LDO outputs.  The device can also monitor and dynamically control and configure the power system through an I2C interface.  Five configurable GPIOs allow for fast system integration for fault reporting and status or for sequencing control.

The XR77129 is quickly configured to power nearly any FPGA, SOC or DSP system through the use of Exar’s design tool, PowerArchitectTM and programmed through an I2C based SMBus compliant serial interface.  PowerArchitect 5.2 has been upgraded to support the additional capabilities of the XR77129 including output voltage ranges beyond the native 0.6 V to 5.5 V with the use of external feedback resistors. The XR77129 wide input voltage range,  low quiescent current of 450 uA (standby) and 4 mA (operating) make it an excellent choice for a wide range of systems including 18 V to 36 VDC, 24 VDC or rectified AC systems used in the industrial automation and embedded applications.

The XR77129 is available now in a RoHS compliant, green/halogen free space-saving 7 mm × 7 mm TQFN and is priced at $9.95 in 1000-piece quantities.

www.exar.com/xr77129


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