BD9540EFV-E2

DC DC Switching Controllers Overview

The BD9540EFV-E2 is a synchronous controller switching regulator manufactured by ROHM Semiconductor. It operates within an input voltage range of 7.5 V to 20 V and provides two independent output channels, each capable of delivering up to 50 mA. The device supports an output voltage of 5.5 V and functions as a step-down DC-DC converter. Designed for surface-mount installation in HTSSOP-B-28 packages, it ensures reliable performance across an operating temperature range from -20°C to +100°C. This component is classified under PMIC power management integrated circuits.

DC DC Switching Controllers Feature Summary

• Dual-output synchronous control architecture for multi-rail power distribution
• Integrated shutdown functionality for system power management
• Wide input voltage tolerance suitable for automotive and industrial applications

DC DC Switching Controllers Applications

• Automotive infotainment systems requiring dual low-current rails
• Industrial control modules needing stable secondary power supplies
• Embedded systems with strict thermal operating requirements

DC DC Switching Controllers Procurement Notes

Verify the current lifecycle status before integration, as this component may be marked as Not Recommended for New Designs (NRND). Confirm package authenticity and moisture sensitivity handling procedures upon receipt. Ensure that external synchronous FETs meet the required current and thermal specifications for the 50 mA load. Validate input voltage ranges against your specific application constraints to avoid operational failure.

DC DC Switching Controllers Selection Notes

Select this controller when a compact solution for two low-current outputs is required within a 7.5 V to 20 V input window. Consider the HTSSOP-B-28 footprint for PCB layout compatibility. Evaluate the need for external synchronous MOSFETs, as this is a controller rather than an integrated converter. Compare thermal dissipation capabilities against ambient conditions to ensure stability within the specified temperature range.

DC DC Switching Controllers Part Context

This part belongs to the BD9540EFV series of switching regulators from ROHM Semiconductor. It is categorized under PMIC - Power Management ICs and specifically functions as a synchronous controller. The series is designed for applications requiring efficient step-down conversion with multiple output channels, targeting environments where space and thermal efficiency are critical design factors.

DC DC Switching Controllers Replacement Considerations

Check for direct substitutes within the BD9540EFV family or other ROHM dual-output synchronous controllers. Verify pinout compatibility and electrical parameter alignment if considering alternative manufacturers. Review datasheets for any changes in operating temperature ranges or input voltage limits.