A8483EEKTR-T

Overview

The A8483EEKTR-T is a synchronous boost switching regulator IC manufactured by Allegro MicroSystems. It operates with an input voltage range of 2.5V to 10V and provides an adjustable output voltage from 0.615V up to 35V. The device delivers a maximum switch current of 350mA at a fixed switching frequency of 1.2MHz. It features a single positive output configuration and is housed in a 5-WDFN package with an exposed pad, specifically the 5-TDFN (3x3) footprint.

Feature Summary

• Boost topology for step-up voltage conversion
• Adjustable output voltage capability
• Integrated power switch for compact design

Applications

• Battery-powered portable electronics
• LED backlighting drivers
• General purpose DC-DC conversion

Procurement Notes

This component is officially listed as obsolete or discontinued by the manufacturer. Procurement must rely on remaining stock from authorized distributors or secondary market suppliers. Verify lot dates and storage conditions carefully due to end-of-life status. Ensure compatibility with existing PCB footprints before ordering replacements.

Selection Notes

Select this part when a low-component-count boost solution is required for inputs between 2.5V and 10V. The 350mA output current suits light-load applications. Consider the 1.2MHz frequency for smaller external inductors. Verify thermal performance within the -40°C to 85°C operating range for the target environment.

Part Context

The A8483 belongs to Allegro's portfolio of integrated power management solutions. It is designed for space-constrained applications requiring efficient voltage regulation. The device integrates the control logic and power switch into a small surface-mount package, reducing bill of materials and board area compared to discrete solutions.

Replacement Considerations

• A8483EEK-T