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Radiation-Tolerant DC-DC 50-Watt Power Converters Provide High-Reliability Solution for New Space Applications
The LE50-28 power converters are available in nine variants with single- and triple-outputs for optimal design configurability

The Low-Earth Orbit (LEO) market is rapidly growing as private and public entities alike explore the new space region for everything from 5G communication and cube satellites to IoT applications. There is an increased demand for standard space grade solutions that are reliable, cost effective and configurable. To meet this market need, Microchip Technology (Nasdaq: MCHP) today announces a new family of Radiation-Tolerant (RT) LE50-28 isolated DC-DC 50W power converters available in nine variants with single- and triple-outputs ranging from 3.3V to 28V.

The off-the-shelf LE50-28 family of power converters are designed to meet MIL-STD-461. The power converters have a companion EMI filter and offer customers ease of design to scale and customize by choosing one or three outputs based on the voltage range needed for the end application. This series provides flexibility to parallel up to four power converters to reach 200-Watts.  

Designed to serve 28V bus systems, the LE50-28 isolated DC-DC power converters can be integrated with Microchip’s PolarFire® FPGAs, microcontrollers and LX7720-RT motor control sensor for a complete electrical system solution. Designers can use these high-reliability radiation-tolerant power solutions to significantly reduce system-level development time.

“The new family of LE50-28 devices enable our customers to succeed in new space and LEO environments where components must withstand harsh conditions,” said Leon Gross, vice president of Microchip’s discrete products group. “Our off-the-shelf products offer a reliable and cost-effective solution designed for the durability our customers have come to expect from Microchip.”

The LE50-28 power converters offer a variety of electrical connection and mounting options. The LE50 series is manufactured with conventional surface mount and thru-hole components on a printed wiring board. This distinction in the manufacturing process can reduce time to market and risks associated with supply chain disruptions.   

The LE50-28 family offers space-grade radiation tolerance with 50 Krad Total Ionizing Dose (TID) and Single Event Effects (SEE) latch-up immunity of 37 MeV·cm2/mg linear energy transfer.

Microchip offers a wide range of components to support the new space evolution with sub-QML strategy to bridge the gap between traditional Qualified Manufacturers List (QML) components and Commercial-Off-The-Shelf (COTS) components. Designed for new space applications, sub-QML components are the optimal solution that combines the radiation tolerance of QML components with our space flight heritage that permits lower screening requirements for lower cost and shorter lead times.

Microchip’s extensive space solutions include FPGAs, power and discrete devices, memory products, communication interfaces, oscillators, microprocessors (MPUs) and MCUs, offering a broad range of options across qualification levels, and the largest qualified plastic portfolio for space applications. For more information, visit our space solutions webpage.

Support and Resources

The new family of LE50-28 devices are supported by comprehensive analysis and test reports including worst case analysis, electrical stress analysis and reliability analysis.

Pricing and Availability

The LE50-28 single-output and LE50-28 triple-output are now available. For additional information and to purchase, contact a Microchip sales representative, authorized worldwide distributor or visit Microchip’s Purchasing and Client Services website, www.microchipdirect.com.


2024061801 / 18.06.2024 / Electronic-components / Microchip Technology Inc. /

Introducing the TimeProvider® XT Extension System for Migrating to a Modern Synchronization and Timing Systems Architecture
Accessory device to Microchip’s TimeProvider 4100 grandmaster scales up to 200 fully redundant T1, E1 or CC synchronization outputs

Microchip Adds 12 Products to its Wireless Portfolio to Further Reduce Barriers to Bluetooth® Integration for Designers at Every Skill Level
Company’s portfolio additions join the only Bluetooth Low Energy offering of its kind spanning modules, System-on-Chip (SoC) products and plug-and-play options

TimeProvider® 4100 Grandmaster Version 2.4 Firmware Offers Embedded BlueSky™ Firewall Technology to Detect Security Threats
Adds IEEE® 1588 standard profiles to meet power and 5G private network synchronization requirements

Microchip Expands its Radiation-Tolerant Microcontroller Portfolio with the 32-bit SAMD21RT Arm® Cortex®-M0+ Based MCU for the Aerospace and Defense Market
The SAMD21RT MCU is offered in 64-pin ceramic and plastic packages with a 10 mm × 10 mm footprint

Radiation-Tolerant DC-DC 50-Watt Power Converters Provide High-Reliability Solution for New Space Applications
The LE50-28 power converters are available in nine variants with single- and triple-outputs for optimal design configurability

Radiation-Tolerant PolarFire® SoC FPGAs Offer Low Power, Zero Configuration Upsets, RISC-V® Architecture for Space Applications
Along with Microchip’s Mi-V ecosystem, new device family helps system designers to lower power, size and weight and speed time to market

See us at PCIM 2024 on Booth 7-640 ... Microchip Makes it Easier to Design an On-Board Charger Solution
Designers can speed time to market for their on-board charger application with key technologies from one supplier, including the control, gate drive and power stage

Easily Incorporate Embedded Security Using Microchip’s PIC32CK 32-bit Microcontrollers with Hardware Security Module
The new family of mid-range MCUs provides designers with a higher level of security and flexibility

maXTouch® Touchscreen Controller Family Expands with Additional Security Features for Touchscreen Payment Systems
Microchip’s ATMXT2952TD 2.0 family of touch controllers offer cryptographic authentication and data encryption

Integrated Actuation Power Solution Aims to Simplify Aviation Industry’s Transition to More Electric Aircraft
Microchip introduces configurable family of companion driver boards using its Hybrid Power Drive modules available in silicon carbide (SiC) or silicon (Si) technology

Microchip Brings Enhanced Code Protection and up to 15W of Power Delivery to its USB Microcontroller Portfolio
AVR® DU Family enables embedded designers to easily implement USB functionality into a wider range of systems

Microchip Technology Introduces ECC608 TrustMANAGER with Kudelski IoT keySTREAM
Cloud-based software as a service leverages secure authentication ICs to enable self-service custom PKI, streamlined in-field provisioning and lifecycle management for IoT devices

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