BD9702T-V5

Overview

The BD9702T-V5 is a single-channel step-down switching regulator manufactured by ROHM Semiconductor, designed for high-efficiency power conversion. It features an integrated Pch MOS FET and operates in PWM mode with a maximum switching current of 3A. The device supports an input voltage range from 8V to 35V and provides an adjustable output voltage between 1V and 32V. It utilizes a Bi-CMOS process to achieve low operating current of 4mA (typical) and zero standby current (typical). The component is housed in a TO-220FP-5 through-hole package and is rated for operation within a temperature range of -40°C to +85°C.

Feature Summary

• Integrates a Pch MOS FET to ensure high efficiency in small load areas
• Utilizes Bi-CMOS process technology to minimize operating and standby currents
• Supports simple step-down switching regulator topology with built-in power MOSFET

Applications

• General purpose DC/DC power supply circuits
• Industrial equipment requiring efficient voltage regulation
• Consumer electronics with moderate current demands

Procurement Notes

Verify the specific suffix and revision level against the official datasheet to confirm pinout and electrical characteristics. Confirm availability status as older series components may be subject to discontinuation or obsolescence notices. Ensure thermal management solutions are adequate for the TO-220FP-5 package given the 3A current capability. Cross-reference RoHS compliance documentation if required for your manufacturing standards.

Selection Notes

Select this component when a non-synchronous buck converter with high peak current capability is required. The 3A output current distinguishes it from the 1.5A variants in the same family. Consider the through-hole TO-220FP-5 package for applications requiring robust mechanical mounting or easy heat sinking. Verify that the 300kHz switching frequency aligns with your passive component size constraints.

Part Context

This part belongs to the BD970x series of single-chip type switching regulators with built-in FETs. It shares architectural similarities with the BD9701T and BD9703T but offers higher current handling. The series is characterized by its simplicity and reliability in standard step-down applications without the complexity of external driver circuits.

Replacement Considerations

Direct substitutes include other ROHM parts within the BD970x series such as the BD9701T or BD9703T, noting differences in maximum switching current. External alternatives should match the 3A current rating, 8-35V input range, and TO-220FP-5 package form factor.