BD9134MUV-E2

Overview

The BD9134MUV-E2 is a high-efficiency synchronous buck switching regulator manufactured by ROHM Semiconductor. It operates within an input voltage range of 4.5 V to 5.5 V and delivers a fixed output voltage between 3.25 V and 3.35 V. The device supports a maximum output current of 3 A with a single output channel. It functions at a switching frequency of 1 MHz and is housed in a QFN-EP-20 package suitable for surface mount installation. The component is rated for operation across a temperature range from -40°C to +105°C.

Feature Summary

• Synchronous buck topology for efficient step-down conversion
• Fixed output voltage regulation optimized for standard logic levels
• Integrated power MOSFETs for compact design

Applications

• Portable electronic devices requiring stable 3.3V supply
• Embedded systems with limited input voltage headroom
• Battery-powered equipment needing high efficiency

Procurement Notes

Verify the obsolete status indicated as NRND (Not Recommended for New Designs) before procurement. Confirm availability through authorized distributors, as stock may be limited or discontinued. Ensure the specific suffix matches project requirements. Check RoHS compliance details via official documentation prior to ordering.

Selection Notes

Select this component when input voltage is strictly regulated between 4.5 V and 5.5 V. It is suitable for applications requiring up to 3 A output current without adjustable voltage settings. Consider thermal performance in the QFN-EP-20 package for high-current scenarios. Evaluate if the fixed output meets system voltage needs exactly.

Part Context

This part belongs to the BD9134MUV series of switching regulators. It is categorized under PMIC - Power Management ICs. The manufacturer is ROHM Semiconductor. The product type is defined as a Voltage Converter. It utilizes SMD/SMT installation style.

Replacement Considerations

Public confirmed substitute part numbers are not available in the provided data.