LT3493IDCB#TRPBF

Overview

The LT3493IDCB#TRPBF is a current mode PWM step-down DC/DC converter featuring an internal 1.75A power switch. It operates with a wide input voltage range of 3.6V to 36V, with a maximum rating of 40V. The device utilizes a high switching frequency of 815kHz to enable the use of small inductors and ceramic capacitors. Packaged in a compact 2mm x 3mm DFN-6 (HVSON) format, it provides cycle-by-cycle current limit protection for reliable operation.

Feature Summary

• Integrates a 1.75A power switch within a compact 2mm x 3mm package
• Supports wide input voltage ranges from unregulated sources up to 36V
• Employs high-frequency operation to minimize external component size

Applications

• Regulating power from unregulated wall transformers
• Power management for 24V industrial supplies
• Automotive battery voltage regulation systems

Procurement Notes

Verify the specific suffix #TRPBF against official Analog Devices documentation to confirm tape-and-reel packaging configuration. Ensure the part number matches the exact thermal pad and lead finish specifications required by your assembly process. Cross-reference the manufacturer's latest datasheet to validate compliance with current environmental directives and pinout definitions before finalizing procurement orders.

Selection Notes

Select this component when designing systems requiring a compact footprint for buck conversion applications. The integrated 1.75A switch capability suits moderate load requirements without external pass transistors. Consider the 815kHz frequency trade-off between component size and electromagnetic interference levels. Verify that the 36V continuous input range aligns with the source voltage profile and transient conditions of the target application environment.

Part Context

This part belongs to the LT3493 family of step-down switching regulators manufactured by Analog Devices. It is designed as a monolithic solution for efficient power conversion in space-constrained environments. The DFN-6 package facilitates surface-mount assembly, supporting automated manufacturing processes while maintaining thermal performance through the exposed pad design.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. No public confirmed substitute part numbers are available in the provided reference data.