ET20170

Current Regulation/Management Overview

The ET20170 is an electronic fuse (e-fuse) regulator manufactured by ETEK Microelectronics. It provides high-side power protection with a wide operating input voltage range of 4.5V to 18V. The device features a programmable current limit set to 5A, ensuring robust overload protection for connected loads. It incorporates a low on-resistance of 31mΩ to minimize conduction losses and improve system efficiency. This component is designed for reliable power management in automotive and industrial applications requiring precise current limiting and short-circuit protection.

Current Regulation/Management Feature Summary

• Integrated high-side power switch with electronic fuse functionality
• Wide input voltage compatibility for diverse power systems
• Low on-resistance design for efficient power delivery
• Programmable current limiting for load protection

Current Regulation/Management Applications

• Automotive electronic control units
• Industrial power distribution systems
• Consumer electronics power protection

Current Regulation/Management Procurement Notes

Verify the specific package type and temperature grade required for your application against the official datasheet. Confirm that the 5A current limit setting aligns with your system's maximum load requirements. Ensure supply voltage ranges between 4.5V and 18V are maintained during operation. Check for any specific ordering suffixes that may indicate different thermal or packaging options.

Current Regulation/Management Selection Notes

Select this component when high-side protection with adjustable current limiting is required. The 31mΩ resistance makes it suitable for applications where power efficiency is critical. Consider the 4.5V–18V input range for compatibility with standard automotive and industrial bus voltages. Evaluate thermal performance under continuous load conditions to ensure reliability.

Current Regulation/Management Part Context

ETEK Microelectronics specializes in analog integrated circuits, including power management and protection solutions. The ET20170 belongs to their e-fuse product line, designed to replace traditional fuses and relays. These components offer superior precision and reusability compared to passive protection devices, fitting into modern compact electronic designs.

Current Regulation/Management Replacement Considerations

Consult official substitution guides for equivalent e-fuse regulators from other manufacturers. Verify pin compatibility and electrical specifications before replacing existing components. Ensure the substitute part meets the same 4.5V–18V input and 5A current limit requirements.