LT3048EDC-12

Overview

The LT3048EDC-12#TRMPBF is a dual-output power management IC featuring a boost switching regulator and an LDO linear regulator in an 8-DFN package. It operates within a 2.7V to 4.8V input range at a 2.2MHz switching frequency. The boost output provides up to 13.1V at 300mA, while the LDO delivers a fixed 12V at 45mA. Designed for wide temperature ranges from -40°C to +125°C, it integrates shutdown functionality and low quiescent current of 475µA for efficient bias generation.

Feature Summary

• Integrates a high-current boost converter with a precision LDO in a single compact package
• Provides independent regulation for generating multiple supply rails from a single source
• Features low noise architecture suitable for sensitive analog and RF circuit biasing
• Includes shutdown control for system power management and extended battery life

Applications

• Bias generation for RF transceivers requiring clean power rails
• Portable medical devices needing isolated or regulated supplies
• Industrial sensor interfaces requiring stable voltage references
• Battery-powered systems utilizing boost and linear regulation stages

Procurement Notes

Verify the specific suffix #TRMPBF indicates tape and reel packaging when ordering. Confirm the DC-12 variant matches the required 12V LDO output specification. Ensure compatibility with the 8-DFN thermal pad requirements during PCB layout. Check RoHS compliance status against current environmental regulations before finalizing procurement.

Selection Notes

Select this component when a combined boost and LDO solution is needed to save board space. The 300mA boost capability supports moderate load currents efficiently. The fixed 12V LDO output simplifies design for applications requiring that specific rail. Consider the 2.2MHz frequency for smaller external passive components compared to lower frequency alternatives.

Part Context

Part of the LT3048 series designed for low noise bias generation. The EDI suffix denotes the enhanced DFN package type. This specific model combines switching efficiency with linear regulation precision. It serves as a complete power solution for complex mixed-signal systems.

Replacement Considerations

LT3048EDC-5#TRMPBF offers a similar topology but with a 5V LDO output instead of 12V. LT3048EDC-15#TRMPBF provides a 15V LDO output option. Verify pinout compatibility and thermal performance when substituting these variants.