RT6576BGQW

Overview

The RT6576BGQW is a quad-output Power Management IC (PMIC) from Richtek USA Inc., integrating two synchronous buck converters and two low-dropout (LDO) regulators in a compact 20-WQFN (3x3 mm) package. It operates with an input voltage range of 5V to 25V and supports switching frequencies of 300kHz and 355kHz. The device features four independent output channels, including adjustable and fixed voltage options, designed for high-efficiency power delivery in space-constrained applications.

Feature Summary

• Integrates dual synchronous buck and dual LDO regulators in a single compact package
• Includes built-in sequencing control for coordinated multi-rail power-up
• Supports wide input voltage range suitable for various system power rails

Applications

• Portable electronic devices requiring multiple regulated voltage rails
• Industrial equipment with space-constrained power management needs
• Communication infrastructure components utilizing mixed linear and switching regulation

Procurement Notes

Verify the specific suffix 'BGQW' against the official Richtek datasheet to confirm pinout and electrical characteristics match your design requirements. Ensure compatibility with RoHS3 standards if environmental compliance is mandatory. Cross-reference the manufacturer part number with authorized distributors to avoid counterfeit components. Confirm thermal performance specifications relative to your PCB layout and ambient operating conditions before finalizing procurement.

Selection Notes

Select this component when a single IC solution is preferred over discrete regulators to reduce board space and simplify BOM. Consider the 20-WQFN package size constraints and thermal dissipation capabilities during layout. Evaluate the required output currents and voltage ranges against the specific buck and LDO channel capabilities. Verify that the integrated sequencing feature aligns with your system's power-up sequence requirements.

Part Context

This PMIC belongs to the RT6575/RT6576 series from Richtek, which are designed for applications needing multiple voltage rails from a single source. The series typically integrates synchronous buck converters for efficiency and LDOs for low-noise requirements. These components are commonly used in portable electronics and industrial systems where space savings and simplified power architecture are critical design factors.

Replacement Considerations

The RT6575DGQW is listed as a substitute part by distributors. Verify functional equivalence and pin compatibility with the official datasheet before substitution.