LT7101EUHE#PBF

Overview

The LT7101EUHE#PBF is a synchronous step-down regulator from Analog Devices, designed for high-voltage applications with an input range up to 105V. It integrates a 1A power switch and features low EMI emission characteristics suitable for noise-sensitive environments. The device offers adjustable output voltage via an external resistor divider and includes protection mechanisms such as overcurrent and thermal shutdown. Packaged in a 36-lead QFN (5x6mm) with exposed pad, it supports surface-mount assembly and operates within a junction temperature range of -40°C to 125°C.

Feature Summary

• Integrates a 1A synchronous buck power switch for compact high-voltage regulation
• Features low electromagnetic interference (EMI) design to minimize radiated noise
• Includes comprehensive protection against overcurrent conditions and thermal overload

Applications

• Automotive electronics requiring wide input voltage tolerance
• Industrial control systems utilizing distributed power architectures
• Telecommunications infrastructure equipment

Procurement Notes

Verify the specific suffix 'EUHE' indicates the commercial temperature grade variant when sourcing. Confirm that the '#PBF' designation ensures lead-free compliance and RoHS adherence. Cross-reference the manufacturer's latest datasheet revision to ensure compatibility with current manufacturing standards and pinout configurations before finalizing procurement orders.

Selection Notes

Select this component for designs requiring a single-output buck converter capable of handling inputs up to 105V. It is appropriate for space-constrained applications where low EMI is critical. Ensure the required output current does not exceed the integrated 1A limit. Consider thermal management requirements due to the small QFN package footprint and potential power dissipation at high input-to-output voltage differentials.

Part Context

This part belongs to the LT7101 family of high-voltage synchronous buck regulators. It shares architectural similarities with other ADI high-voltage converters but is distinct in its specific 1A current rating and EMI optimization. The EUHE package variant provides a standardized surface-mount solution compatible with automated PCB assembly processes commonly used in modern electronics manufacturing.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify functional equivalence carefully if considering alternative manufacturers, particularly regarding input voltage limits and EMI performance characteristics.