RT7264AZQW

Voltage Regulators - DC DC Switching Regulators Overview

The RT7264AZQW is a synchronous step-down DC-DC converter manufactured by Richtek USA Inc. It operates with an input voltage range of 4.5V to 21V and provides a single adjustable output from 0.808V to 15V at up to 4A. The device integrates internal power MOSFETs and features a fixed switching frequency of 500kHz. It is housed in a 14-WDFN (4x3) package with an exposed pad for thermal dissipation. The component supports operation across a junction temperature range of -40°C to 85°C.

Voltage Regulators - DC DC Switching Regulators Feature Summary

• Integrates high-side and low-side power MOSFETs for efficient synchronous rectification
• Provides adjustable output voltage via external resistor divider
• Utilizes fixed-frequency PWM control architecture

Voltage Regulators - DC DC Switching Regulators Applications

• Point-of-load regulation for industrial equipment
• Power distribution systems for embedded controllers
• Voltage conversion for communication infrastructure modules

Voltage Regulators - DC DC Switching Regulators Procurement Notes

Verify the specific suffix 'ZQW' against the manufacturer datasheet to confirm pinout, thermal pad configuration, and RoHS compliance status. Ensure the ordering part number matches the required package variant and lead time specifications provided by authorized distributors. Cross-reference the manufacturer's latest revision notes for any functional updates or recommended footprint changes.

Voltage Regulators - DC DC Switching Regulators Selection Notes

Select this component when a single output channel is required with an input voltage up to 21V and a continuous load current of 4A. The 500kHz switching frequency offers a balance between component size and efficiency. Consider the 14-WDFN package for applications requiring moderate thermal performance and compact board space. Verify that the external feedback network can achieve the desired minimum output voltage of 0.808V.

Voltage Regulators - DC DC Switching Regulators Part Context

This device belongs to the RT7264 family of synchronous buck converters designed for general-purpose power management. It is part of Richtek's portfolio of integrated power solutions aimed at simplifying design-in processes by combining control logic and power stages into a single compact package. The family targets applications needing reliable voltage regulation within standard industrial temperature ranges.

Voltage Regulators - DC DC Switching Regulators Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate alternatives based on matching input/output voltage ranges, current capacity, and package dimensions only after verifying electrical compatibility with the original design requirements.