Linear Technology announces the LTC6909, a precision silicon oscillator that significantly reduces peak radiated EMI and improves control of switching regulators in multiphase power supplies. The LTC6909 has 8 separate outputs, providing up to 8 rail-to-rail 50% duty cycle clock signals. These outputs can be used to enable or disable and phase-synchronize multiple switching regulators. Phase-synchronization offers a number of design advantages, including improved EMI performance, reduced input and output ripple current, and better load transient response. Using 3 logic inputs, the phase relationship between these outputs can be configured from 45° to 120°, or the outputs can be placed nu n ttxuc xdr ma qpjd-V eftad.
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