A4408KLVTR-T

Voltage Regulators - Linear + Switching Overview

The A4408KLVTR-T is a multi-output power management IC from Allegro MicroSystems, housed in a 38-pin eTSSOP package with exposed pad. It integrates three linear regulators and two switching converters: one synchronous buck and one buck-boost. The device supports an input voltage range of 2.8V to 36V and operates within a temperature range of -40°C to 150°C TJ. Switching frequencies are adjustable between 250kHz and 2.4MHz. Output specifications include 5V at 115mA and 3.3V at 165mA for specific LDO channels.

Voltage Regulators - Linear + Switching Feature Summary

• Integrates multiple regulator topologies including synchronous buck, buck-boost, and linear regulators within a single component.
• Features programmable switching frequency ranges to optimize efficiency and filter size requirements.
• Designed for high-temperature operation suitable for demanding automotive environments.

Voltage Regulators - Linear + Switching Applications

• Automotive infotainment systems requiring multiple regulated voltage rails.
• Instrument clusters and dashboard modules needing compact power solutions.
• General automotive electronics utilizing mixed-mode regulation architectures.

Voltage Regulators - Linear + Switching Procurement Notes

Verify the specific suffix and package variant against current datasheets, as component availability may vary by region. Confirm that the 38-eTSSOP footprint matches the target PCB layout constraints. Ensure thermal dissipation calculations account for the exposed pad requirement in the final assembly design.

Voltage Regulators - Linear + Switching Selection Notes

Select this component when a design requires simultaneous buck, buck-boost, and LDO outputs in a space-constrained application. Evaluate the total output current capabilities against system load profiles. Consider the wide input voltage range if the supply rail experiences significant fluctuation during operation.

Voltage Regulators - Linear + Switching Part Context

This part belongs to the A4408 series of integrated power management solutions. It is designed to replace discrete regulator arrangements, reducing board space and component count. The series targets applications needing robust power delivery in automotive and industrial sectors.

Voltage Regulators - Linear + Switching Replacement Considerations

Check for updated revisions or alternative packages within the same family. Verify pin compatibility before substituting with other Allegro PMICs offering similar topology combinations.