LT3048EDC-15

Overview

The LT3048EDC-15 is a dual-output power management IC from Analog Devices, integrating a boost switching regulator and an LDO in an 8-DFN package. It operates with an input voltage range of 2.7 V to 4.8 V and features a 2.2 MHz switching frequency. The first output provides 15 V at up to 45 mA, while the second output delivers 13.1 V at 300 mA. The device supports shutdown functionality and operates within a temperature range of -40°C to +125°C.

Feature Summary

• Integrates a high-efficiency boost converter and a low-noise LDO for combined power generation
• Provides independent regulation for two distinct output rails simultaneously
• Supports system shutdown control via external logic signals

Applications

• Biasing circuits requiring simultaneous high-voltage and standard supply rails
• Portable electronic devices with limited board space
• Industrial sensor interfaces needing isolated or stepped-up power sources

Procurement Notes

Verify the specific suffix (e.g., TRMPBF) against your bill of materials, as packaging formats vary. Confirm that the 8-DFN footprint matches your PCB layout constraints. Ensure the input voltage source remains within the specified 2.7 V to 4.8 V range during operation to maintain regulatory performance.

Selection Notes

Select this component when a single solution is required to generate both a boosted voltage and a regulated LDO output from a low-voltage source. It is suitable for designs where minimizing component count and board area is critical. Verify that the total current demands of both outputs do not exceed the device's thermal limits under maximum ambient conditions.

Part Context

This part belongs to the LT3048 series, which combines switching and linear regulation technologies. The DC-DC section handles bulk power conversion, while the LDO section provides clean power for sensitive analog loads. This integration simplifies design by reducing the number of discrete components needed for complex power architectures.

Replacement Considerations

LT3048IDC-15#TRPBF: Identical electrical specifications with different reel packaging. LT3048EDC-12#TRMPBF: Similar topology but with different fixed output voltages (12V/13.1V). Verify pin compatibility and output voltage requirements before substitution.