BD91501MUV-GE2

Overview

The BD91501MUV-GE2 is a dual-output synchronous buck switching regulator manufactured by ROHM Semiconductor. It integrates power switches and control circuitry to step down input voltages ranging from 2.55 V to 5.5 V. The device provides two independent output channels with maximum currents of 300 mA and 400 mA, supporting fixed output voltages of 1.8 V and 2.55 V. Operating at a switching frequency of 1.65 MHz, it features low quiescent current of 10 uA and functions within an ambient temperature range of -30°C to +105°C in a compact VQFN-16 package.

Feature Summary

• Dual-channel synchronous buck topology for efficient multi-rail power generation
• Integrated power MOSFETs eliminate external switch requirements
• High-frequency operation enables reduced passive component size
• Low standby current supports battery-powered applications

Applications

• Portable electronic devices requiring multiple voltage rails
• Embedded systems with microcontrollers and memory components
• Industrial control modules with low-power logic circuits
• Consumer electronics utilizing single-cell lithium battery inputs

Procurement Notes

Verify the exact suffix GE2 against official ROHM documentation to confirm pinout compatibility and RoHS status. Confirm availability as the product lifecycle status indicates limited supply or discontinuation. Ensure the VQFN-16 package footprint matches the target PCB design. Cross-reference thermal performance data with system heat dissipation capabilities before finalizing procurement decisions.

Selection Notes

Select this component when designing systems requiring two distinct regulated outputs from a single 3.3V or 5V source. The integrated nature reduces bill-of-materials count compared to discrete solutions. Consider the 1.65 MHz switching frequency for applications prioritizing small inductor size over extreme efficiency optimization. Verify that the 300 mA and 400 mA current limits meet the peak load requirements of the connected loads.

Part Context

This part belongs to ROHM’s BD915xx series of high-efficiency step-down converters. These regulators are designed for portable equipment where space and power efficiency are critical. The series typically features synchronous rectification and current-mode control for stable operation under varying load conditions. The BD91501 variant specifically addresses dual-output needs in compact form factors.

Replacement Considerations

Publicly confirmed substitute part numbers are not available in the provided documentation. Consult ROHM technical support for direct replacements if this discontinued item is required.