LT3048IDC-5#TRMPBF

Overview

The LT3048IDC-5#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 2.2 MHz switching frequency. The first output provides a fixed 5 V at up to 300 mA, while the second output delivers a fixed 5 V at up to 45 mA. Designed for industrial applications, it supports a junction temperature range from -40°C to +125°C.

Feature Summary

• Integrates a high-efficiency boost converter and a low-noise LDO regulator into a single compact component
• Provides independent regulated outputs suitable for powering mixed-signal circuits requiring distinct voltage rails
• Features a fixed 2.2 MHz switching frequency to minimize external passive component size

Applications

• Industrial control systems requiring isolated or distinct analog and digital power supplies
• Portable instrumentation powered by single-cell lithium-ion batteries
• Embedded systems needing low-noise bias generation alongside main power regulation

Procurement Notes

Verify the specific suffix #TRMPBF confirms the reel packaging format and lead-free status. Ensure the DC variant matches your thermal requirements compared to the ED version. Confirm the -5 designation aligns with your required 5V output specification before finalizing procurement orders.

Selection Notes

Select this part when a combined boost and LDO solution is needed from a low-voltage source like a single Li-Ion cell. The IDC package offers a small footprint but requires adequate PCB copper area for thermal dissipation. Compare against the LT3048EDC-5 if higher temperature performance is not strictly necessary for cost optimization.

Part Context

This component belongs to the LT3048 family of dual regulators. It shares the core architecture with variants offering different output voltages or temperature grades. The ID suffix indicates the industrial temperature grade, distinguishing it from commercial options within the same series.

Replacement Considerations

LT3048EDC-5#TRMPBF serves as a direct functional substitute with identical electrical characteristics but a wider operating temperature range.