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Vox Power Limited | Unit 2, Red Cow Interchange Estate, Ballymount, Dublin 22, D22 Y8H2, Ireland | T +353 1 4591161 |
DOC-MN-008-03, VCCS300 User Manual
Ripple and Noise
The ripple and noise figures stated in the datasheet are defined based on a standard measuring method. To obtain the same results the same test setup must be used,
and care must be taken to eliminate any parasitic noise pickup. The diagram below shows details of the setup and sources of noise pickup.
The output ripple frequency can vary from 100kHz to 300kHz but is typically 180kHz. Under light load conditions (<6W) the unit may enter burst mode and the ripple
frequency will reduce significantly but will remain within specification.
Transient Response
The VCCS300 series uses the latest current mode control algorithms to achieve a fast (<500uS) and stable response to dynamic loading. Where large dynamic loading
and tight voltage deviation specification are required, additional low impedance external capacitance should be placed at the load.
