Exar releases high frequency, step-down regulator for EMC/EMI sensitive applications

Exar Corporation has added to its family of low voltage, step down regulators with the addition of the XRP6670. The programmable operating frequency of the XRP6670 is intended to offer power design engineers increased flexibility in optimising component values, size and performance enabling precise management of electromagnetic interference (EMI) compliance and electromagnetic compatibility (EMC).

Operating from a 2.6V to 5.5V input voltage range, the XRP6670 is capable of supplying up to 3Amps of continuous current with an adjustable output voltage as low as 0.8V. This synchronous Pulse Width Modulation (PWM) voltage regulator can accommodate a broad range of inductor and output capacitor values through its constant 300kHz to 2.5MHz programmable operating frequency. Additionally, the adjustable frequency range of the XRP6670, which is set via a single resistor, allows the user to optimise size, transient response and efficiency while precisely positioning the fundamental operating frequency and subsequent harmonics.

Suitable for industrial, medical, and audio and video equipment, the XPR6670, with its compact form factor and reduced component count, can also be used for space sensitive applications.

“We continue to innovate with simpler to use yet higher performing and complete solutions,” said James Lougheed, vice president of Power Management and AMS products, Exar. “The XRP6670 provides an unprecedented flexibility for any power architect looking to precisely control typical conversion design trade-offs between performance, size, cost and EMC/EMI compatibility.”



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