LT3048EDC-3.3

Overview

The LT3048EDC-3.3#TRMPBF is a low noise bias generator with an integrated LDO regulator, manufactured by Analog Devices Inc. It utilizes a boost topology to step up the input voltage range of 2.7 V to 4.8 V, providing a fixed 3.3 V output at 40 mA. The device operates with a switching frequency of 2.2 MHz and features a static current of 475 uA. It is housed in an 8-DFN (2x2) package and supports operation temperatures from -40°C to +125°C.

Feature Summary

• Integrates a low noise bias generator with an LDO regulator for clean power delivery
• Utilizes boost topology to manage input voltages below the regulated output level
• Operates within a wide temperature range suitable for industrial environments

Applications

• Bias generation for precision analog circuits
• Powering low noise RF components
• Industrial sensor interface circuits

Procurement Notes

Verify the specific suffix #TRMPBF indicates reel packaging when ordering. Confirm the exact output voltage variant matches the design requirement, as the LT3048 series offers multiple fixed voltage options. Ensure the DFN-8 footprint aligns with the PCB layout specifications before finalizing procurement.

Selection Notes

Select this component when a stable 3.3 V rail is required from inputs potentially lower than 3.3 V. The integrated boost and LDO stages simplify design compared to discrete solutions. Consider the 40 mA output limit and 2.2 MHz switching frequency for EMI management during system planning.

Part Context

This part belongs to the LT3048 series, which combines a high-performance LDO with a DC/DC converter. The series is designed to provide ultra-low noise power supplies for sensitive applications. The DFN-8 package allows for compact board designs while maintaining thermal performance.

Replacement Considerations

LT3048EDC-5#TRMPBF provides a 5 V output instead of 3.3 V. LT3048EDC-12#TRMPBF provides a 12 V output. Verify that the required output voltage matches the application needs before substituting.