Power

PMICs support input voltage range of 6-40V

23rd December 2014
Barney Scott
0

Exar Corporation has introduced the XR77129, a quad output programmable Universal PMIC with an input operating voltage range of 6-40V. Its control architecture is suited for 40V inputs using a 17-bit wide PID voltage mode VIN feed forward architecture. This controller offers a single input, quad output, step-down switching regulator controller with integrated gate drivers and dual LDO outputs.

The controller 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 configured to power nearly any FPGA, SOC or DSP system through the use of Exar’s design tool, PowerArchitect 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 to 5.5V with the use of external feedback resistors. The XR77129's wide input voltage range, low quiescent current of 450uA (standby) and 4mA (operating) make it a suitable choice for a wide range of systems including 18 to 36VDC, 24VDC or rectified AC systems used in the industrial automation and embedded applications.

“The XR77129 Universal PMIC brings a wide range of capabilities to industrial embedded designs not available before,” said James Lougheed, Vice President, Power Management Products, Exar. “The dynamic control, configurability and monitoring of Exar’s programmable power solutions give industrial system designers capabilities to solve unique and difficult power conversion challenges.”

The XR77129 is available in a RoHS compliant, green/halogen free space-saving 7x7mm TQFN and is priced at $9.95 in 1000-piece quantities.

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