BP5029

Overview

The BP5029 is a DC/DC converter module manufactured by Rohm Semiconductor, designed as a buck switching regulator with a fixed positive output of 5V and a maximum output current of 300mA. It utilizes a self-oscillation system architecture that integrates internal switching devices, rectifiers, and coils into a single unit. The device operates with a maximum input voltage of 16V and is housed in a compact 6-SIP (5 leads) package. This integrated design simplifies circuit implementation by reducing the component count required for power conversion applications.

Feature Summary

• Integrates switching devices, rectifiers, and coils within a single module
• Utilizes a self-oscillation system for DC/DC conversion
• Provides a fixed positive 5V output voltage
• Supports up to 300mA output current

Applications

• General purpose DC/DC power conversion
• Embedded systems requiring isolated or semi-isolated power stages
• Compact electronic devices with space constraints

Procurement Notes

Verify the specific datasheet version and mechanical dimensions prior to integration, as module specifications can vary between revisions. Confirm that the 6-SIP package footprint matches the target PCB layout. Ensure input voltage does not exceed the 16V maximum rating during operation. Cross-reference the part number with official Rohm documentation to confirm lead-free status and RoHS compliance details before finalizing procurement orders.

Selection Notes

Select this component when a simplified buck converter solution is required without external inductors or complex control loops. It is suitable for applications where a fixed 5V output at moderate currents is sufficient. Consider the thermal performance of the SIP package under load. Evaluate if the self-oscillation frequency meets noise requirements for sensitive analog circuits.

Part Context

The BP5029 belongs to Rohm's family of integrated DC/DC converter modules. Unlike discrete switching regulators that require external passive components, this module consolidates critical power stage elements. It serves as an alternative to traditional linear regulators in scenarios where higher efficiency or wider input voltage ranges are necessary compared to LDOs.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided documentation. Verify compatibility with existing designs by comparing pinouts, electrical ratings, and thermal characteristics against potential alternatives from the same manufacturer.