LT3483IDC

Overview

The LT3483IDC is an inverting micropower DC/DC converter manufactured by Analog Devices Inc. It operates with an input voltage range of 2.5 V to 16 V and delivers a negative output voltage up to -38 V. The device provides an output current capability of 200 mA while maintaining a low quiescent current of 40 uA. It functions at a switching frequency of 150 kHz and is housed in an 8-pin DFN EP package. The component supports operation across a temperature range from -40°C to +85°C.

Feature Summary

• Inverts positive input voltages to generate stable negative output rails
• Integrates internal Schottky diode to minimize external component count
• Features constant off-time control for rapid transient response
• Includes shutdown pin for extended battery life in portable applications

Applications

• Portable instrumentation requiring negative supply rails
• Battery-powered systems needing efficient voltage inversion
• Industrial sensors utilizing single-supply operation with bipolar requirements

Procurement Notes

Verify the specific suffix (e.g., IDC#TRPBF) against official Analog Devices documentation to confirm package type, tape-and-reel specifications, and environmental compliance status. Ensure the ordering code matches the required temperature grade and packaging format before procurement.

Selection Notes

Select this component when designing circuits that require a compact solution for generating negative voltages from a single positive source. Consider the 200 mA output limit and 150 kHz switching frequency relative to inductor selection and thermal management requirements within the DFN EP footprint.

Part Context

This part belongs to the LT3483 family of micropower inverters designed for space-constrained applications. It shares functional similarities with other Linear Technology inverting converters but distinguishes itself through integrated Schottky protection and specific thermal pad configurations for improved heat dissipation in small packages.

Replacement Considerations

LT3483AIDC#TRPBF serves as a verified alternative within the same product family, offering identical electrical characteristics and pinout compatibility.