LTC3614HUDD

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3614HUDD#PBF is a low quiescent current monolithic synchronous buck regulator from Analog Devices Inc., utilizing a current mode, constant frequency architecture. It operates with an input voltage range of 2.25V to 5.5V and delivers up to 4A of output current. The device features a switching frequency of 4MHz and maintains a sleep mode no-load DC supply current of only 75μA. It supports adjustable output voltages starting from 0.6V and is housed in a 24-lead WFQFN package with an exposed pad.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Monolithic synchronous buck regulator design
• Low quiescent current operation
• Current mode, constant frequency architecture

Voltage Regulators - DC DC Switching Regulators Applications

• Portable battery-powered equipment
• Industrial systems requiring high efficiency
• Embedded computing platforms

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the complete part number including suffixes such as #PBF for lead-free compliance when ordering. Confirm package type and temperature grade specifications against project requirements. Ensure compatibility with existing PCB footprints for the 24-WFQFN exposed pad configuration. Cross-reference official datasheets for any recent revisions or updates to electrical characteristics before finalizing procurement decisions.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component for applications demanding high efficiency at light loads due to its ultra-low sleep mode current. The 4MHz switching frequency allows for smaller external passive components compared to lower frequency alternatives. Ensure input voltage stays within the 2.25V to 5.5V range and that thermal management strategies accommodate the power dissipation associated with 4A continuous output currents in the specified package.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3614 family of synchronous step-down DC/DC converters designed by Analog Devices. These regulators are engineered for space-constrained designs requiring high performance and efficiency. The HUDD variant specifically denotes the industrial temperature grade and the specific QFN package configuration suitable for surface mount assembly.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Direct replacements may include other 4A, 4MHz synchronous buck regulators from Analog Devices or competitors offering similar input/output ranges and package dimensions. Verify pin-to-pin compatibility and thermal performance characteristics before substitution.