A4402ELPTR-T

Voltage Regulators - Linear + Switching Overview

The A4402ELPTR-T is a dual-output power management IC from Allegro MicroSystems, integrating one switching regulator and one linear regulator. It operates with an input voltage range of 6V to 50V. The first output provides adjustable voltage between 3.3V and 5V at up to 1A current. The second output delivers adjustable voltage from 1.8V to 3.3V at up to 250mA. The device utilizes a 2MHz switching frequency and is housed in a 16-lead eTSSOP package with an exposed pad.

Voltage Regulators - Linear + Switching Feature Summary

• Integrates a buck converter and an LDO for combined high-efficiency and low-noise power delivery
• Supports wide input voltage ranges suitable for automotive and industrial applications
• Features adjustable output voltages for flexible system design requirements

Voltage Regulators - Linear + Switching Applications

• Automotive infotainment systems requiring multiple regulated rails
• Industrial control modules needing isolated or separate power domains
• Embedded systems utilizing mixed-signal architectures

Voltage Regulators - Linear + Switching Procurement Notes

Verify the specific suffix EL against official datasheets to confirm pinout and thermal characteristics. Ensure compatibility with the 16-eTSSOP-EP footprint during PCB layout. Confirm moisture sensitivity level handling procedures are followed upon receipt to prevent package damage during reflow soldering processes.

Voltage Regulators - Linear + Switching Selection Notes

Select this component when a single solution is required to generate both a higher-current switching rail and a lower-current linear rail. It is suitable for designs where board space is limited and efficiency is critical for the primary load. Consider the exposed pad for thermal management if operating near maximum current limits.

Voltage Regulators - Linear + Switching Part Context

This part belongs to the A4402 series of dual-output regulators. It shares functional similarities with variants like the A4402KLPTR-T but differs in package type and specific electrical tolerances defined by the manufacturer's coding system. It serves as a consolidated power supply solution for complex electronic assemblies.

Voltage Regulators - Linear + Switching Replacement Considerations

The A4402KLPTR-T is a documented alternative within the same family, offering similar functionality in a different package configuration. Verify pin-to-pin compatibility and thermal performance differences before substitution.