LT1913EDD#PBF

Overview

The LT1913EDD#PBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 3.6V to 25V and provides an adjustable output voltage from 0.79V to 24.25V. The device delivers a continuous output current of 3.5A. It features a programmable switching frequency ranging from 230kHz to 2.45MHz. The component is housed in a 10-WFDFN package with exposed pad, measuring 3mm x 3mm. It supports operation at junction temperatures between 0°C and 125°C.

Feature Summary

• Integrated synchronous rectification for high efficiency
• Programmable switching frequency allows optimization for size or performance
• Adjustable output voltage via external resistor divider
• Compact surface-mount packaging suitable for space-constrained designs

Applications

• Point-of-load regulation for embedded systems
• Industrial control power supplies
• Telecommunications equipment
• Portable battery-powered devices requiring efficient conversion

Procurement Notes

Verify the complete part number including suffixes such as #PBF to ensure lead-free compliance and specific tape-and-reel or tube packaging options. Confirm that the supplier source provides official documentation matching the Analog Devices datasheet specifications. Check for any recent product change notifications regarding pinout or electrical characteristics before finalizing procurement orders.

Selection Notes

Select this component when a compact solution is required for converting higher voltages down to lower logic levels. Ensure the chosen switching frequency balances inductor size against electromagnetic interference requirements. Verify that the external passive components selected can handle the ripple current and voltage ratings specified in the application circuit guidelines provided in the datasheet.

Part Context

This part belongs to the LT1913 family of synchronous buck regulators designed for high-efficiency power conversion. It is distinct from non-synchronous counterparts by integrating both high-side and low-side switches on-chip. The DFN package variant offers thermal advantages over larger packages while maintaining similar electrical performance parameters for standard industrial applications.

Replacement Considerations

Direct substitutes may include other Analog Devices synchronous buck regulators with compatible input voltage ranges and current capabilities. Verify pin compatibility and thermal resistance values when considering alternative packages within the same manufacturer's portfolio.