LT3048EDC-5#TRMPBF

Overview

The LT3048EDC-5#TRMPBF is a low noise bias generator and switching regulator manufactured by Analog Devices Inc. It utilizes a boost topology to generate an internal supply rail, enabling a subsequent low-dropout linear regulator (LDO) stage. The device provides a fixed 5 V output with a maximum current of 40 mA. It operates within an input voltage range of 2.7 V to 4.8 V and features a switching frequency of 2.2 MHz. The component supports shutdown functionality and functions reliably across an extended temperature range from -40°C to +125°C.

Feature Summary

• Integrates a boost switching converter with a low-noise LDO for clean power generation
• Provides high power supply rejection ratio suitable for sensitive analog circuits
• Includes shutdown control capability for system power management

Applications

• Biasing low-noise amplifiers in communication systems
• Powering precision analog-to-digital converters
• Supplying reference voltages for sensor interfaces

Procurement Notes

Verify the specific suffix TRMPBF indicates tape and reel packaging when ordering. Confirm the DC-5 designation ensures a fixed 5 V output rather than adjustable variants. Check manufacturer documentation for RoHS compliance status and material declarations prior to final procurement decisions.

Selection Notes

Select this component when a compact solution combining switching efficiency with LDO noise performance is required. Ensure the input voltage remains within the specified 2.7 V to 4.8 V window. Consider the 40 mA output limit and DFN-8 package thermal characteristics during circuit design.

Part Context

This part belongs to the LT3048 series of dual-output regulators. It combines a step-up converter and an LDO in a single 8-pin DFN package. The series is designed for applications requiring low noise power supplies from single-cell battery sources or low-voltage rails.

Replacement Considerations

LT3048EDC-12#TRMPBF: Different fixed output voltage (12 V). LT3048IDC-15#TRMPBF: Different fixed output voltage (15 V). Verify pin compatibility and output specifications before substitution.