LT3048EDC-15#TRPBF

Overview

The LT3048EDC-15#TRPBF is a dual-output power management IC from Analog Devices, integrating a boost switching regulator and a low-dropout linear regulator in an 8-lead DFN package. It operates with an input voltage range of 2.7 V to 4.8 V. The first output provides a fixed 15 V at up to 45 mA, while the second output delivers a boosted voltage of 16.1 V at up to 300 mA. The device features a switching frequency of 2.2 MHz and supports operation across a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-efficiency boost converter and a precision LDO within a single compact package
• Provides independent regulated outputs suitable for biasing mixed-signal circuits
• Features a 2.2 MHz switching frequency to minimize external passive component size

Applications

• Bias generation for RF transceivers requiring multiple supply rails
• Power management for portable instrumentation with limited space
• Supplying negative or isolated rails in sensor interfaces

Procurement Notes

Verify the specific suffix #TRPBF confirms tape-and-reel packaging when ordering. Confirm the manufacturer is Analog Devices Inc. to ensure authenticity. Check RoHS compliance status via official documentation before integration. Validate that the 8-DFN footprint matches your PCB layout requirements. Ensure the input voltage range aligns with your system's power source constraints.

Selection Notes

Select this component when a combined boost and LDO solution is required in a small form factor. It is appropriate for designs needing a stable 15 V rail alongside a higher current boosted rail. Consider the 2.2 MHz frequency for trade-offs between efficiency and EMI. Verify thermal performance in the 8-DFN package under maximum load conditions.

Part Context

This part belongs to the LT3048 series, which combines a step-up converter and an LDO. It is designed for applications requiring multiple supply voltages from a single low-voltage source. The series offers integrated protection features and high power supply rejection ratio (PSRR) for sensitive analog loads.

Replacement Considerations

LT3048EDC-15#TRMPBF is a confirmed substitute offering identical electrical specifications but supplied in cut-tape packaging instead of reel.