MicroRAM is an output filter module from Vicor. It can provide over 40dB of noise attenuation in the frequency range from 60Hz to 1MHz and supports N+1 redundancy. It is available in 20 and 30A models and is compatible with most manufacturers' switching converters, including Vicor's 1st and 2nd Generation DC-DC converters.
The MicroRAM Output Ripple Attenuation Module combines active and passive filtering to achieve high‑performance ripple reduction. It operates from 3 V to 30 V DC, offers 20 A and 30 A versions, and includes an integrated OR’ing diode for redundant parallel operation.
Key specifications include >40 dB attenuation from 60 Hz to 1 MHz, up to 98 % efficiency, and detailed mechanical mounting options. The datasheet provides electrical characteristics, thermal ratings, and application schematics for integration with Vicor DC‑DC converters.
| Ripple attenuation | >40 dB from 60 Hz to 1 MHz |
|---|---|
| Input voltage range | 3 V to 30 V DC |
| Current rating | 20 A or 30 A |
| Efficiency | up to 98 % |
| Thermal resistance (baseplate to sink, flat) | 0.16 °C/W |
It provides greater than 40 dB attenuation from 60 Hz to 1 MHz.
The module operates with an input voltage from 3 V to 30 V DC.
Two versions are offered: a 20 A rating and a 30 A rating.
The module can achieve up to 98 % efficiency.