Vicor Launches Plated Radiation-Tolerant Power Modules
Max 300W ASIC power supply at 100V nominal
Proven 50Krad resilience and single-event upset resistance


Vicor announced on the 5th that it is launching the first radiation-fault-tolerant DC/DC converter module made with a plated SM-ChiP™ package.

The module can power a low-voltage ASIC up to 300W at a nominal power of 100V, and Boeing's tests have demonstrated resilience to a total ionization dose of 50 Krad (kilorad) and resistance to single-event upsets.

Tolerance to single-event upsets is achieved using a redundant architecture, and two identical parallel powertrains with fault-tolerant control ICs are accommodated in a single high-density SM-ChiP package.

Advanced communications satellites require high power density and low noise. Vicor soft switching, high-frequency ZCS/ZVS power stages within a metal-shielded ChiP reduce the noise floor of the power system, thereby achieving signal integrity and overall system performance with the essential high level of reliability.

The complete power-load point solution consists of four SM-ChiP products. Includes a BCM3423 in a 34 × 23 mm package (nominal 100 V, 300 W K=1/3 bus converter), a PRM2919 in a 29 × 19 mm package (nominal 33 V, 200 W regulator), and two VTM2919 current multipliers (K=1/32 with 0.8 V output at 150 A and K=1/8 with 3.4 V output at 25 A).

All modules are provided in Vicor high-density SM-ChiP packages featuring Ball Grid Array (BGA) connections and optional solder masks for the top and bottom surfaces, with an operating temperature of –30 to 125°C.