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e-power Journal > News > Focus > Semiconductors > Radiation-tolerant power management device aimed at space applications
NewsSemiconductors

Radiation-tolerant power management device aimed at space applications

Giovanni Di Maria
Giovanni Di Maria January 24, 2023
Updated 2023/01/24 at 2:44 PM
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Microchip Technology Inc. has released its first COTS radiation-tolerant power device, the MIC69303RT 3A LDO Voltage Regulator, building on its already robust portfolio of radiation-tolerant products. Power management is addressed by the new high-current, low-voltage gadget, which is intended for LEO and other space applications. To meet the needs of the mission, the gadget is available for prototype sampling in plastic and hermetic ceramic. The gadget is built using tested commercial off-the-shelf (COTS) components, making early development and preliminary assessment easier. The device operates from a single 1.65V to 5.5V low voltage source, supplying output voltages as low as 0.5V at high currents and delivering high accuracy and ultra-low dropout values of 500mV under difficult circumstances. The company’s radiation-tolerant space-qualified microcontrollers, including the SAM71Q21RT and PolarFire FPGAs, like the RTPF500TLS, may use it as a backup power source. According to Bob Vampola, vice president of Microchip’s aerospace and defense business unit, MIC69303RT is Microchip’s first rad-tolerant power management device with a hermetic ceramic packaging, latch-up immunity, and 50 Krad total dose resilience. Customers may select from a wide range of devices created to collaborate and speed up design processes thanks to Microchip’s more than 60 years of space flight history.

According to Keith Pazul, director of marketing for Microchip’s analog power and interface business line, this COTS rad-tolerant power management solution opens up new design opportunities in space applications. By using the COTS MIC69303RT space-qualified part to power Microchip space-qualified MCUs and FPGAs, customers may build their space system with confidence. The gadget, which was created for demanding aerospace applications, can operate in temperatures between -55C and +125C. With a radiation tolerance of up to 50Krad, it is offered in 8-pin and 10-pin package sizes. Sensitive RF circuits, switching power supply post-regulation, and industrial power applications all depend on the output’s low noise level. The gadget is the business’ most latest space-qualified offering. It is produced in accordance with TCI/QCI specifications and MIL Class Q or Class V requirements for screening testing and qualification testing. With specific extra tests needed for space applications, the plastic MIC69303RT complies with high-reliability plastic quality flow developed from AEC-Q100 automotive criteria. The purpose of the MIC69303RT Plastic Evaluation Board is to assess how well the plastic engineering IC version of the MIC69303RT performs. The device’s electric properties may be easily adjusted and measured by the user under varied input and output situations thanks to the four-layer PCB.

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TAGGED: radiations, space
Giovanni Di Maria January 24, 2023
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