EZ6303QI

Overview

The EZ6303QI is a triple-output PowerSoC synchronous buck converter manufactured by Altera under the Enpirion brand. It integrates one buck converter and two low-dropout (LDO) regulators within a single package. The device operates with an input voltage range of 1.6V to 3.6V. Output specifications include one adjustable buck channel providing up to 1.5A, and two LDO channels each delivering 300mA. The switching frequency for the buck converter is 2.5MHz. It is housed in a 40-QFN (7x4mm) package with an exposed thermal pad.

Feature Summary

• Integrates three independent power regulation channels: one synchronous buck converter and two linear regulators.
• Combines high-efficiency switching and precise linear regulation within a compact system-in-package form factor.
• Designed for space-constrained applications requiring multiple distinct voltage rails from a single source.

Applications

• Portable electronic devices requiring multi-rail power distribution
• Embedded systems utilizing mixed-signal components
• Battery-powered equipment needing efficient step-down conversion

Procurement Notes

Verify component authenticity through authorized distributors or official manufacturer channels. Confirm RoHS compliance status and moisture sensitivity level (MSL 3) prior to handling. Check for end-of-life notifications as discontinuation may affect long-term supply availability. Ensure proper ESD precautions are observed during storage and assembly processes.

Selection Notes

Select this component when a design requires three regulated outputs from a single low-voltage input source. The integrated topology reduces external component count compared to discrete solutions. Consider the 40-QFN package size constraints and thermal dissipation requirements associated with the exposed pad design for adequate heat management.

Part Context

This part belongs to the Enpirion EZ series of PowerSoCs, which combine power switches, controllers, and passive components into a single module. These devices were originally developed by Enpirion and later integrated into Altera's portfolio. The series focuses on simplifying power supply design for portable electronics by minimizing board space and assembly complexity.

Replacement Considerations

Publicly confirmed substitute part numbers for EZ6303QI are not available in the provided documentation. Verify compatibility with alternative triple-output modules if sourcing new inventory is required due to discontinuation status.