BD9703T-V5

Overview

The BD9703T-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 with a fixed output voltage of 5V. The device supports an input voltage range from 8V to 35V and delivers a maximum output current of 1.5A. It utilizes a buck topology with a switching frequency of 300kHz. The component is housed in a TO-220FP-5 package suitable for through-hole mounting. It functions within a temperature range of -40°C to +85°C and includes shutdown functionality.

Feature Summary

• Integrates a Pch MOS FET for high efficiency in small load areas
• Utilizes Bi-CMOS process technology to achieve low operating current
• Provides fixed 5V output voltage option within the adjustable series
• Includes shutdown pin for power management control

Applications

• Industrial equipment power supplies
• Consumer electronics DC-DC conversion
• General-purpose step-down voltage regulation

Procurement Notes

Verify component status as end-of-life or obsolete before procurement planning. Confirm package integrity and lead times with authorized distributors. Ensure compatibility with existing thermal management solutions due to the TO-220FP-5 form factor. Check for RoHS compliance documentation specific to production batches. Validate that the fixed 5V variant meets exact design requirements without need for external feedback adjustment.

Selection Notes

Select this model when a fixed 5V output is required from a wide input range up to 35V. Consider the through-hole TO-220FP-5 package for applications requiring robust mechanical mounting or easier manual assembly. Evaluate thermal dissipation needs given the 1.5A continuous current capability and non-synchronous rectification. Compare against surface-mount alternatives like the BD9703FP-E2 if PCB space constraints are critical.

Part Context

The BD9703T-V5 belongs to the BD9703 series of single-chip type switching regulators. This family integrates the controller and power switch into a single BICMOS package to simplify circuit design. The 'T' suffix indicates the through-hole TO-220FP-5 package variant, while '-V5' specifies the fixed 5V output version. It is part of ROHM's broader portfolio of efficient, compact power management ICs.

Replacement Considerations

• BD9703T (Adjustable Output Version)
• BD9703CP-V5 (Through-Hole Fixed 5V Variant)