LT8610AHMSE#PBF

Overview

The LT8610AHMSE#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc., housed in a 16-lead MSOP package with an exposed thermal pad. It supports input voltages from 3V to 42V and delivers up to 3.5A of output current. The device features a low quiescent current of 2.5µA and operates at switch frequencies ranging from 200kHz to 2.2MHz. It includes integrated soft-start, burst mode operation for improved light-load efficiency, and thermal foldback protection. The component is rated for junction temperatures up to 150°C and offers adjustable or fixed output voltage options depending on the specific suffix configuration.

Feature Summary

• Synchronous buck topology with integrated high-efficiency power switches
• Ultra-low quiescent current for enhanced battery life in portable applications
• Burst Mode operation minimizes ripple and improves light-load efficiency
• Integrated thermal foldback and soft-start functionality for robust protection

Applications

• Industrial point-of-load regulation
• Battery-powered equipment power management
• Distributed power systems in automation
• High-density DC/DC conversion modules

Procurement Notes

Verify the exact output voltage configuration and package variant against the official Analog Devices datasheet before procurement. Ensure the ordering part number matches the required fixed or adjustable output specification. Confirm RoHS compliance and lead-free status as per the manufacturer's latest product change notifications. Cross-reference the specific suffix codes to avoid mismatches in thermal performance or pinout compatibility.

Selection Notes

Select this regulator when high input voltage tolerance up to 42V is required alongside compact board space constraints. The 16-MSOP package suits applications needing efficient heat dissipation through the exposed pad. Consider the 2.5µA quiescent current for energy-sensitive designs. Evaluate the switch frequency range to balance EMI requirements against external component size. Ensure adequate thermal design for the expected load current and ambient temperature conditions.

Part Context

This component belongs to the LT8610 family of micropower synchronous buck regulators designed for high-efficiency power conversion. It complements other variants like the LT8610AB and LT8610AC series, which share similar electrical characteristics but may differ in specific temperature grades or output configurations. The family targets applications requiring reliable performance in harsh industrial environments while maintaining small form factors.

Replacement Considerations

Public confirmed substitute part numbers include LT8610ABHMSE#PBF and LT8610ACHMSE-1#PBF. Verify functional equivalence regarding input voltage range, output current capability, and package dimensions before substitution. Check for any differences in thermal specifications or control interface requirements.