BD9874CP-V5E2

Overview

The BD9874CP-V5E2 is a synchronous step-down switching regulator manufactured by ROHM Semiconductor. It features a constant on-time control system for fast transient response and high oscillating frequency at low inductance. The device integrates a P-channel MOSFET to ensure high efficiency. Key electrical parameters include a maximum switching current of 1.5A or 3.0A, depending on the specific operational configuration. The output voltage is adjustable via external resistors. The component is housed in a TO-220CP-V5 package and supplied in an embossed tape and reel format.

Feature Summary

• Integrates a built-in P-channel FET to maintain high conversion efficiency
• Employs constant on-time control architecture for rapid transient response
• Supports adjustable output voltage settings through external resistor networks

Applications

• Low inductance power supply designs requiring high oscillating frequencies
• Equipment demanding minimal standby power consumption due to light load performance
• Systems utilizing synchronous buck converter topologies for efficient DC-DC stepping

Procurement Notes

Verify the specific suffix and packaging details against the official datasheet before ordering. Confirm that the embossed tape and reel quantity matches your production requirements. Ensure the TO-220CP-V5 package dimensions fit your thermal and mechanical constraints. Check for any RoHS compliance updates as regulatory standards evolve. Cross-reference the manufacturer part number with authorized distributor listings to avoid counterfeit components.

Selection Notes

Select this component when a synchronous buck converter with integrated power switches is required. The constant on-time control makes it suitable for applications needing quick load transient recovery. Consider the adjustable output feature if fixed voltage regulators do not meet specific rail requirements. Evaluate the thermal performance of the TO-220CP-V5 package for your heat dissipation needs. Verify that the input voltage range aligns with your system's power source specifications.

Part Context

This part belongs to the BD9x series of integrated MOSFET DC-DC buck converters from ROHM. These devices are designed for applications requiring high efficiency and compact solution sizes. The series utilizes a proprietary constant on-time control method to optimize performance across varying load conditions. This approach allows for the use of smaller inductors while maintaining stable regulation and fast dynamic response times.

Replacement Considerations

Check for direct pin-compatible substitutes within the same BD9x family, such as variants with different current ratings or fixed output voltages. Verify that any replacement maintains the TO-220CP-V5 package style and embossed tape and reel delivery format. Ensure the alternative component supports the same constant on-time control architecture for equivalent transient performance.