High B test of a commercial step-down Point of Load for LHC experiments

Abstract

a b s t r a c tThe performance in magnetic field (B-field) of the commercial DC-DC converter LTM8033, from Linear Technology, has been evaluated. The tests have been carried out at the Laboratorio Acceleratori e Superconduttività Applicata (LASA), in Milan (Italy), on December 2013 and the experimental results are here presented and discussed. Their ability to operate in hostile environment is particularly interesting for physics experiments where the presence of radiation and strong B field make electronic devices challenged to function. In particular, in this article the operation in high B-field environment will be investigated and discussed.

Radiation-hard power electronics for the ATLAS New Small Wheel

“…These modules were tested for their ability to tolerate these magnetic fields at a 1 T conventional electromagnet housed at the Laboratorio Acceleratori e Superconduttiviatà Applicata, operated by INFN and the University of Milan (see also ref. [7,8]). Two LTM8033 and one LTM4619 were exposed to magnetic fields in three different orientations (figure 3).…”

Components Qualification for a Possible use in the Mu2e Calorimeter Waveform Digitizer

“…Because of the presence of a strong magnetic field, the most critical component of the project is the DC/DC converter. A large variety of commercial devices from Linear Technologies have been evaluated and finally the LTM8033 has been selected, due to [7,8]. The LTM8033 is an EMI-compatible 36 V, 3 A DC/DC µModule buck converter.…”

Features measurement and reliability considerations on a proposed main converter for LHC experiments

“…Research in this area is still ongoing also to explore the operation of some electronic devices when exposed to magnetic fields of high intensity [17][18][19][20].…”