LT3048IDC#TRMPBF

Overview

The LT3048IDC#TRMPBF is a dual-output power management IC from Analog Devices, combining a boost switching regulator with an LDO linear regulator in an 8-lead DFN package. It operates within an input voltage range of 2.7 V to 4.8 V and features a fixed 2.2 MHz switching frequency. The device provides two independent outputs: Output 1 delivers up to 300 mA at 16.1 V, while Output 2 supplies up to 45 mA at 15 V. It supports operation across a temperature range of -40°C to +125°C and includes shutdown functionality.

Feature Summary

• Integrates a high-current boost converter and a low-noise LDO regulator in a single compact package
• Provides dual independent regulated outputs for simultaneous bias generation requirements
• Features a fixed 2.2 MHz switching frequency to minimize external component size

Applications

• Bias generation for RF front-end modules requiring multiple voltage rails
• Portable instrumentation systems needing efficient power conversion
• Industrial control circuits operating in wide temperature environments

Procurement Notes

Verify the specific suffix #TRMPBF against official Analog Devices documentation to confirm tape-and-reel packaging and lead-free compliance. Confirm availability status directly with authorized distributors as supply constraints may apply. Ensure the ordering part number matches the required output specifications and package type before finalizing procurement orders.

Selection Notes

Select this component when designing circuits that require both a boosted voltage rail and a clean LDO output from a low-voltage source. The dual-output architecture simplifies board space compared to using separate regulators. Verify that the input voltage remains within the 2.7 V to 4.8 V range and that thermal dissipation capabilities of the 8-DFN package meet the application's power requirements.

Part Context

This part belongs to the LT3048 series, which are dual step-up/boost switching and LDO regulators designed for applications requiring multiple power rails from a single low-voltage input. The series is characterized by its ability to generate higher voltages efficiently while providing stable linear regulation for sensitive analog loads.

Replacement Considerations

Consult official Analog Devices substitution guides for verified alternatives. Cross-reference pinouts and electrical characteristics carefully if considering similar boost-LDO combinations from other manufacturers.