LT3048EDC#TRPBF

Overview

The LT3048EDC#TRPBF is a dual-output power management IC featuring a 2.2 MHz synchronous boost converter and a low-dropout (LDO) regulator in an 8-lead DFN package. The boost stage provides up to 300 mA output current with an adjustable voltage range of 1.6 V to 13.1 V. The LDO stage delivers 45 mA at a fixed 5 V output. It operates from a 2.7 V to 4.8 V input supply, drawing 475 µA quiescent current. The device supports shutdown control and functions within a -40°C to +125°C temperature range.

Feature Summary

• Integrates a high-efficiency synchronous boost converter and a precision LDO regulator in a single compact package.
• Provides independent regulation for multiple system rails, allowing the boost converter to support higher voltage loads while the LDO supplies clean bias voltages.
• Features a fixed 2.2 MHz switching frequency that enables the use of small external components to minimize solution size.

Applications

• Portable devices requiring efficient battery charging or boosting from single-cell lithium sources
• Systems needing simultaneous generation of higher voltage rails and stable low-noise analog supply voltages
• Embedded applications with strict space constraints requiring integrated power management solutions

Procurement Notes

Verify the specific suffix against official Analog Devices documentation to confirm pinout compatibility and electrical characteristics. Ensure the ordering code matches the exact package type and temperature grade required for your design. Cross-reference datasheet revision dates to validate feature availability and application circuit recommendations before finalizing procurement.

Selection Notes

Select this component when a design requires both a boosted output and a regulated low-voltage rail from a single input source. It is suitable for applications where board space is limited and efficiency at light loads is critical. Consider the maximum input voltage limits and thermal performance in the chosen DFN package during the selection process.

Part Context

This part belongs to the LT3048 series, which combines a step-up converter and an LDO regulator. The series is designed for portable electronics and battery-powered systems. The DC family designation indicates commercial temperature range operation. The #TRMPBF suffix denotes tape and reel packaging with lead-free finish.

Replacement Considerations

LT3048EDC-5#TRMPBF: Fixed 5V LDO output variant.

FAQ

What is the maximum output current for the boost converter section?

The boost converter section can deliver up to 300 mA of output current.

Does the LT3048EDC include a shutdown pin?

Yes, the device includes a shutdown pin to disable the regulators and reduce quiescent current consumption.