| |

Littelfuse Expands eFuse Protection ICs Series to Address More Diverse and Demanding Applications

March 20, 2023

Littlefuse Efuse

Littelfuse, Inc. announced the latest release of four versatile circuit protection devices in the eFuse Protection ICs product line.

The latest eFuse Protection ICs utilize an innovative design ideal for a wide range of power inputs (3.3V to 28V) with highly integrated protection. These semiconductor-based electronic fuses provide robust overvoltage, overcurrent, short circuit, and inrush current protection. Additional features include reverse current blocking, under voltage lockout (UVLO), soft start, and overtemperature protection with real-time diagnostics—all in one compact chip. View the video.

The latest eFuse Protection ICs are ideal for use in a wide range of electronics designs, including:

5V Applications12V Applications24V-28V Applications
Portable electronics SSD/HDD USB Type-C PD
 Bluetooth devices Switch routers Power tools
 Wearables Enterprise servers Industry
Smartphones Fan0 systems PLC
USB Type-C cables Telecom POS
Internet of Things (IoT) Appliances Building

“The expanded eFuse Protection ICs product line delivers clear performance advantages for electronics designers,” said Bernie Hsieh, Assistant Product Manager of the Protection Semiconductor Business team at Littelfuse. “Compared to traditional fuse, PTCs, power switches, and discrete solutions like Schottky diode and MOSFET combinations, the eFuses provide exceptional integration, adjustability, flexibility, and reliable protection features in highly compact form factors that save PC board space.”

Bernie Hsieh, Assistant Product Manager of the Protection Semiconductor Business team at Littelfuse

The eFuse Protection ICs offer the following key benefits:

  • Accuracy and integration – Provide faster response time, highly accurate current limiting, and more integrated protection, control, and sensing features than traditional fuses and PTCs.
  • Programmable and customized, designed to user request – Incorporates more flexibility including adjustable overvoltage threshold, current limiting, and inrush current, along with accurate reverse current blocking compared to conventional power switches.
  • Speeds up time-to-market – Reduces the design-in phase, printed circuit board (PCB) space requirements, BOM cost, and time-to-market in comparison to typical discrete solutions (e.g., hot-swap controller + MOSFET).
  • Maximize Equipment Uptime – Improves product reliability, increases battery life, lowers repair costs, and lengthens overall product lifetime.

The latest additions to the eFuse Protection ICs are available in the following series:

  • LS0504EDD12 – 5V, 4A, low Ron power distribution load switch, DFN1.2×1.6 package
  • LS12052BD33 – 18V, 5A, overvoltage and blocking FET control, DFN2x2 package
  • LS2405IDD23 – 24V, 5A, very low forward voltage diode, low profile 8 lead DFN 2×3 package
  • LS24062RQ23 – 28V, 6A, bidirectional, dual port independent current limit setting, 16 lead QFN 2.5×3.2 package

Availability

The eFuse Protection ICs are available in tape and reel format in quantities of 3,000 (LS2405IDD23, LS0504EDD12) or 5,000 (LS12052BD33, LS24062RQ23). Place sample requests through authorized Littelfuse distributors worldwide. For a listing of Littelfuse distributors, please visit Littelfuse.com.

For More Information

Additional information on the latest series release is available on the eFuse Protection ICs product page. For technical questions, please contact Bernie Hsieh, Assistant Product Manager, Protection Semiconductor Business, bhsieh@littelfuse.com.

Source

Related Product

Littelfuse ITV4030 Battery Protectors Provide Fast Response to Prevent Overcurrents and Overcharging Damage

Littelfuse Inc., an industrial technology manufacturing company empowering a sustainable, connected, and safer world, recently announced the new ITV4030, a series of 22 amp, three-terminal, surface-mountable Li-ion battery protectors.

Related Product

Pxxx0S3N Series – High Surge Current SIDACtor® – DO-214AB from Littelfuse

SIDACtor® Series DO-214AB (Surface Mount) package are designed to protect low data rate interface and outdoor data interface such as RS-232 or RS-423 in industrial market.

Related Articles

Latest Articles

  • ABB Contactor Selection Guide Canada

    October 1, 2025 ABB contactors are among the most reliable electrical switching devices in industrial automation. As Canada’s leading ABB authorized distributor, Proax has helped thousands of engineers and technicians select the right ABB contactor for their applications. Whether you’re designing a new motor control panel or replacing existing equipment, choosing the right ABB contactor can… Read More…

  • 25 Advanced Motion Control Questions Answered

    October 1, 2025 Electromate has compiled a list of 25 advanced mechatronic engineering FAQs covering inertia, vibration, servo safety, control tuning, encoder resolution, and motion system design, and provided answers from their team of experts across the country. How do I model moment loading in real-world applications with offset payloads? Moment loading should be calculated… Read More…

Featured Article

Revolutionizing Material Movement with Autonomous Mobile Robots

Revolutionizing Material Movement with Autonomous Mobile Robots

In today’s fast-paced manufacturing and logistics industries, the need for efficient and flexible material movement solutions has never been greater. Traditional methods like conveyor systems, forklifts, and manual pushcarts have served us well, but they come with limitations.

That’s why Omron is thrilled to announce the launch of their game-changing MD Series of Autonomous Mobile Robots (AMRs). Read more

Products

  • Schneider Electric Unveils New AI Data Centre Reference Designs with NVIDIA

    October 6, 2025 Schneider Electric, a leader in the digital transformation of energy management and automation, has announced new reference designs developed with NVIDIA that significantly accelerate time to deployment and aid operators as they adopt AI-ready infrastructure solutions. The first reference design delivers the industry’s first and only critical framework for integrated power management and liquid… Read More…

  • PISA-M Electronic Circuit Breakers: New NEC Class 2 Compliant Variants Available

    October 6, 2025 PULS introduces new 4-channel electronic circuit breakers designed specifically for power distribution in NEC Class 2 circuits, expanding the existing PISA-M series. PISA-M enables the safe distribution of load current into four individual Class 2 circuits. This offers a cost-effective alternative to multiple individually approved NEC Class 2 compliant power supplies, reducing both acquisition costs and… Read More…