MIL-COTS MI-RAM™ Ripple Attenuator Module

MIL-COTS MI-RAM™ Ripple Attenuator Module

The MI-RAM is designed for applications where extremely-low-noise outputs are required. When used with any Vicor MI-series DC-DC converter, the MI-RAM reduces both line-frequency-related ripple and switching noise to less than 10mVP-P, DC to 20MHz. The combination of the MI-RAM with an MI-series converter provides the output-noise performance of a linear supply at a power density in excess of 15W/in³.

All of the features of the MI-series converter remain available while using the MI-RAM including output voltage trimming, OVP and OTP (MI-200™ only), current limiting, remote sense and logic enable/disable.

Features & Benefits

Reduces output PARD to ≤10mVp-p
Full attenuation up to 20A load
No adjustments required
Compatible with all MI-Family converters from 5 to 50VDC output
Efficiency: 93% – 99%
Converter sense, trim, OVP & OCP retained
MIL-STD-810 environments
Size: 2.28” x 2.4” x 0.5” (57,9 x 61,0 x 12,7mm)

Packaging Options

Standard:

Slotted baseplate

SlimMod:

Flangeless baseplate, option suffix: – S / Example: MI – RAM – M1 – S

FinMod:

Finned heat sink, option suffix:
– F1, – F2, -F3 or -F4
Examples:
MI – RAM – M1 -F1, 0.25” fins, longitudinal
MI – RAM – M1 -F2, 0.50” fins, longitudinal
MI – RAM – M1 -F3, 0.25” fins, transverse
MI – RAM – M1 -F4, 0.50” fins, transverse