MAX8668ETEQ+T

Overview

The MAX8668ETEQ+T is a power management IC featuring two synchronous step-down DC-DC converters and two low-dropout linear regulators. It operates with an input voltage range of 2.6V to 5.5V and supports switching frequencies up to 1.5MHz. The device provides four independent outputs: two buck channels delivering up to 1.2A and 600mA respectively, and two LDO channels providing 300mA each. Output voltages are adjustable from 600mV to 3.3V for the switching regulators. It functions within an industrial temperature range of -40°C to +85°C and is housed in a 16-TQFN package.

Feature Summary

• Integrates dual synchronous buck converters and dual LDOs for comprehensive power distribution
• Features individual enable controls for each output channel to optimize power management
• Supports high-frequency operation at 1.5MHz to minimize external component size

Applications

• Portable electronic devices requiring multiple regulated voltage rails
• Industrial control systems operating in harsh environments
• Communication equipment needing stable power supply architectures

Procurement Notes

Verify the specific suffix ETET or ETEQ against the official datasheet to confirm pin compatibility and thermal characteristics. Confirm RoHS compliance status as manufacturing processes may evolve. Check current lifecycle status as components may transition to end-of-life phases. Ensure the selected package matches the PCB footprint design requirements precisely.

Selection Notes

Select this component when designing systems requiring four distinct regulated outputs from a single IC. Consider the 1.5MHz switching frequency for applications prioritizing small passive component footprints. Evaluate the thermal performance of the TQFN package against the expected load currents. Verify that the input voltage range aligns with the system's primary power source capabilities.

Part Context

This part belongs to the MAX8668 family of integrated power management solutions. It consolidates multiple regulation stages into a single compact package, reducing board space compared to discrete solutions. The series is designed for applications demanding high efficiency and precise voltage regulation in portable and industrial form factors.

Replacement Considerations

Consult the official datasheet for direct pin-to-pin compatible alternatives within the same product family. Verify electrical specifications such as output current ratings and switching frequencies before substitution.