LT3663IDCB

Overview

The LT3663IDCB is a current mode step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 7.5V to 36V and delivers up to 1.2A of output current. The device features a programmable output current limit that accurately controls system power dissipation. It utilizes a DFN-8 package for surface mount installation.

Feature Summary

• Current mode buck topology
• Programmable output current limit
• Wide input voltage range

Applications

• Step-down converter applications
• Battery charger systems
• Power management ICs

Procurement Notes

Verify the specific suffix (e.g., -5, -3.3) required for the target output voltage, as the base model number denotes the family. Confirm RoHS compliance status and automotive qualification requirements if applicable to the end-use environment. Ensure the DFN-8 package footprint matches the PCB design constraints.

Selection Notes

Select this component for designs requiring a compact solution with precise current limiting capabilities. The wide input voltage range supports various supply sources. Consider the thermal performance of the DFN-8 package relative to the expected load current and ambient temperature conditions during the design phase.

Part Context

This part belongs to the LT3663 series of high-voltage input regulators. The series includes variants with fixed output voltages such as 2.5V, 3.3V, and 5V. These devices are designed for applications needing efficient power conversion from higher voltage rails to lower logic or battery charging levels.

Replacement Considerations

Check for direct substitutes within the LT3663 family with different fixed output voltages. Verify pin compatibility and thermal characteristics when considering alternative regulators from other manufacturers.