LTC3542IDC#TRMPBF

Voltage Regulators - DC DC Switching Regulators Overview

The LTC3542IDC#TRMPBF is a synchronous step-down switching regulator manufactured by Analog Devices Inc. It operates with an input voltage range of 2.5V to 5.5V and provides a single adjustable output from 0.6V to 5.5V. The device delivers up to 500mA of output current at a fixed switching frequency of 2.25MHz. Packaged in a compact 6-lead WDFN (2x2mm) with exposed pad, it supports junction temperatures from -40°C to 125°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side N-channel power switches for efficient synchronous rectification
• Features internal compensation to minimize external component count
• Includes programmable soft-start to limit inrush current during startup

Voltage Regulators - DC DC Switching Regulators Applications

• Portable electronics requiring efficient voltage regulation
• Battery-powered systems with limited space constraints
• Embedded applications utilizing single-cell lithium-ion or lithium-polymer batteries

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix TRMPBF indicates tape and reel packaging with lead-free finish and RoHS compliance. Confirm the DC package variant matches your PCB footprint requirements. Ensure the operating temperature range aligns with your system's thermal design specifications before finalizing procurement.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a compact solution is needed for low-to-medium current buck conversion. The 2.25MHz frequency allows for smaller passive components compared to lower-frequency alternatives. Verify that the required output voltage falls within the 0.6V to 5.5V adjustable range and that the load current does not exceed 500mA.

Voltage Regulators - DC DC Switching Regulators Part Context

This part belongs to the LTC3542 family of micropower synchronous step-down regulators. It is designed for applications where board space is critical and efficiency is paramount. The device integrates all necessary control logic and power switches into a small footprint, simplifying the design process for engineers developing compact electronic devices.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Check datasheets for alternative parts offering similar 500mA output and 2.25MHz frequency. Verify pin compatibility if direct replacement is required. Consider packages like 6-DFN or equivalent small footprints from other manufacturers if supply chain constraints exist.