MAX8737ETE+

Overview

The MAX8737ETE+ is a dual-channel low-dropout linear voltage regulator controller manufactured by Analog Devices Inc. (Maxim Integrated). It is designed to generate two independent low-voltage power rails for portable applications, such as laptops, using external N-channel MOSFETs. The device operates within an input voltage range of 2.5V to 5.5V and supports output voltages adjustable from 0.5V to 2.5V. Key electrical specifications include a maximum quiescent current of 1.5mA per channel, a maximum load current of 5A per channel when paired with appropriate external FETs, and a typical line regulation of 0.01%. It functions within a temperature range of -40°C to +85°C and is housed in a 28-lead TQFN package.

Feature Summary

• Dual-channel architecture providing independent control over two separate low-voltage power outputs via external N-channel MOSFETs.
• High precision regulation capability allowing flexible load current design with accurate output voltage stability.
• Integrated protection mechanisms including thermal shutdown and current limiting to ensure operational safety under fault conditions.

Applications

• Generating independent low-voltage power supplies for laptop systems.
• Portable computing devices requiring multiple regulated voltage rails.
• Battery-powered equipment needing efficient step-down regulation.

Procurement Notes

Verify the specific suffix 'ETE+' against the manufacturer's official datasheet to confirm pinout compatibility and RoHS status. Ensure that the external N-channel MOSFETs selected meet the required current handling capabilities, as the controller itself does not provide the main power path. Confirm availability through authorized distributors, as supply chain statuses may vary.

Selection Notes

Select this component when designing systems requiring two distinct, adjustable low-voltage outputs derived from a single higher-voltage rail. It is suitable for applications where space efficiency is critical due to its integrated controller nature, reducing the need for discrete error amplifiers. Ensure the external MOSFET selection aligns with the desired load current and thermal dissipation requirements.

Part Context

This part belongs to the Maxim Integrated portfolio of power management solutions, specifically targeting mobile and portable electronics. It represents a class of controllers that offload power switching to external components to optimize cost and thermal performance while maintaining high efficiency in low-voltage, high-current scenarios common in modern consumer electronics.

Replacement Considerations

Consult the manufacturer's official replacement guide or cross-reference tools for verified alternatives. No specific substitute part numbers are confirmed in the provided data.