MAX8667ETECQ+T

Overview

The MAX8667ETECQ+T is a power management integrated circuit featuring two synchronous step-down DC-DC converters and two low-dropout (LDO) linear regulators. It operates within an input voltage range of 2.8V to 5.5V, providing four independent output channels. The switching frequency is fixed at 1.5MHz. The device supports output voltages from 600mV to 3.3V with guaranteed output currents of 600mA for the first buck converter and 1.2A for the second. The LDOs provide up to 300mA each. It is housed in a 16-pin TQFN package with exposed pad and rated for operation between -40°C and +85°C.

Feature Summary

• Integrates dual synchronous step-down converters and dual LDOs in a compact form factor
• Features individual enable controls for each regulator channel
• Supports ultra-fast line and load transient response
• Utilizes tiny external components including small chip inductors

Applications

• Cell phones and smartphones
• Portable MP3 and DVD players
• Digital cameras and camcorders
• PCMCIA cards and handheld instruments

Procurement Notes

Verify component authenticity through authorized distribution channels due to potential counterfeit risks. Confirm RoHS compliance status and specific tape-and-reel packaging requirements before finalizing orders. Ensure supply chain stability as availability may fluctuate based on manufacturer production schedules.

Selection Notes

Select this component when designing portable electronics requiring multiple regulated voltage rails from a single battery source. The integrated topology reduces board space compared to discrete solutions. Verify that the required output currents and voltage ranges align with the specific MAX8667 variant specifications.

Part Context

This part belongs to the MAX8667 family of PMICs designed for mobile applications. It consolidates power conversion functions typically handled by separate ICs, simplifying schematic design and reducing overall system component count while maintaining high efficiency in space-constrained environments.

Replacement Considerations

Check for direct pin-compatible substitutes within the MAX8667 series or newer generations from Analog Devices. Evaluate alternative quad-output PMICs if specific current ratings differ. Ensure thermal performance matches the original design constraints.