BD8964FVM-TR

Overview

The BD8964FVM-TR is a single-channel synchronous buck switching regulator manufactured by ROHM Semiconductor. It operates within an input voltage range of 4.0 V to 5.5 V and provides an adjustable output voltage between 1.0 V and 1.8 V. The device delivers a maximum output current of 1.2 A with a fixed switching frequency of 1 MHz. It features integrated N-channel and P-channel FETs for high efficiency and includes protection mechanisms such as thermal shutdown, under-voltage lockout, and timing-lock short-circuit protection. The component is housed in an MSOP-8 package and supports operation temperatures from -25°C to +85°C.

Feature Summary

• Integrates synchronous rectification using built-in Nch/Pch FETs to achieve high conversion efficiency.
• Utilizes current-mode PWM control architecture to ensure rapid transient response during load changes.
• Includes comprehensive protection circuits covering thermal shutdown, under-voltage lockout, and timing-lock short-circuit detection.

Applications

• Portable electronic devices requiring efficient step-down power regulation
• Embedded systems utilizing 3.3V or 5V input rails
• Battery-powered equipment needing extended operational life through optimized power management

Procurement Notes

Verify the specific suffix and packaging configuration against official ROHM documentation before procurement. Confirm that the intended application aligns with the specified operating temperature range and electrical limits. Ensure compatibility with the MSOP-8 footprint and soldering requirements. Cross-reference the part number with authorized distributors to confirm availability and authenticity. Review the latest datasheet for any updates regarding pin assignments or recommended circuit components.

Selection Notes

Select this component when a compact, single-output synchronous buck converter is required for low-to-medium current applications. It is suitable for designs prioritizing efficiency and transient performance within a narrow input voltage window. Consider the MSOP-8 package constraints for thermal dissipation and board space. Evaluate the need for external compensation versus internal stability characteristics defined in the technical specifications.

Part Context

This part belongs to ROHM's series of monolithic switching regulators designed for portable electronics. It integrates the controller and power switches into a single chip to minimize external component count. The synchronous topology distinguishes it from asynchronous alternatives by reducing conduction losses. It serves as a power management solution for systems requiring stable voltage regulation from varying battery or supply sources.

Replacement Considerations

Consult official ROHM substitution guides for verified alternative part numbers. Do not assume functional equivalence with generic buck converters without verifying pin compatibility and electrical parameters. Check for updated revisions or end-of-life notices for this specific model.