LT3048IDC-3.3

Overview

The LT3048IDC-3.3#TRPBF is a low noise bias generator featuring an integrated boost switching regulator and a linear LDO regulator, manufactured by Analog Devices Inc. It operates within an input voltage range of 2.7 V to 4.8 V and delivers a fixed 3.3 V output at up to 40 mA. The device utilizes a 2.2 MHz switching frequency and is housed in an 8-lead DFN package. It supports operation from -40°C to +125°C and includes shutdown functionality for power management.

Feature Summary

• Integrates a boost switching regulator with a low dropout linear regulator for efficient power conversion
• Provides low noise performance suitable for sensitive analog circuit biasing applications
• Includes a shutdown pin for precise control over power consumption states

Applications

• Bias generation for precision analog-to-digital converters
• Power supply stages for sensor interfaces requiring low noise
• Portable electronic devices utilizing single-cell battery inputs

Procurement Notes

Verify the specific suffix (e.g., #TRPBF) against official Analog Devices documentation to confirm packaging type and lead-free status. Ensure the operating temperature grade matches the design requirements, as industrial variants differ from commercial ones. Cross-reference the manufacturer part number with authorized distributors to validate authenticity and current availability status before procurement.

Selection Notes

Select this component when a combined boost and LDO solution is required from a low input voltage source. The fixed 3.3 V output eliminates external resistor networks for the primary rail. Consider the 40 mA output limit and 2.2 MHz switching frequency when designing passive components. Verify that the DFN-8 package thermal characteristics meet the system's dissipation needs under maximum load conditions.

Part Context

This part belongs to the LT3048 series of dual-output regulators combining switching and linear technologies. It is designed to provide clean power rails for noise-sensitive applications. The IDC suffix indicates the specific package style and temperature rating defined by Analog Devices for this product line iteration.

Replacement Considerations

Consult Analog Devices datasheets for direct functional equivalents within the LT3048 family, such as different voltage outputs or package variations. Verify pin compatibility and electrical specifications before substituting with other manufacturers' parts.