ISL6269BIRZ-T

DC DC Switching Controllers Overview

The ISL6269BIRZ-T is a single-output synchronous buck switching controller from the Robust Ripple Regulator (R3) series by Renesas Electronics. It operates within a supply voltage range of 5 V to 25 V and supports a programmable switching frequency between 200 kHz and 600 kHz. The device delivers an output current capability of 25 A with an adjustable output voltage range of 600 mV to 3.3 V. It is housed in a 16-lead QFN package with an exposed pad, measuring 4x4 mm. The component functions reliably across an operating temperature range of -40°C to +100°C.

DC DC Switching Controllers Feature Summary

• Implements the Robust Ripple Regulator (R3) architecture for enhanced transient response and stability.
• Integrates synchronous rectification drivers to improve power conversion efficiency.
• Provides comprehensive control features including enable, frequency control, phase control, and power good indication.

DC DC Switching Controllers Applications

• Graphics Processing Unit (GPU) core voltage regulation
• General-purpose DC-DC step-down power supplies
• Embedded system central processing unit (CPU) power delivery

DC DC Switching Controllers Procurement Notes

Verify current availability status as this part may be subject to limited supply or discontinuation notices. Confirm that the specific suffix indicates tape and reel packaging if required for automated assembly. Ensure compliance with RoHS3 directives and check moisture sensitivity level requirements for storage and handling prior to soldering.

DC DC Switching Controllers Selection Notes

Select this controller when a single-phase high-current solution is required for low-voltage, high-speed digital loads. The R3 technology offers advantages in dynamic load conditions compared to traditional PWM controllers. Consider the 16-QFN footprint constraints and thermal dissipation requirements associated with the 25 A output capability during board layout design.

DC DC Switching Controllers Part Context

This component belongs to the ISL6269 family of power management integrated circuits designed for demanding computing applications. It serves as a dedicated voltage regulator controller, distinct from complete converter modules, requiring external MOSFETs and passive components to form a functional power stage.

DC DC Switching Controllers Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing gate drive requirements and control loop compensation networks before considering alternative devices from other manufacturers.