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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1A 16VQFN
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Adjustable
- Number of Outputs：1
- Voltage - Input (Min)：2.7V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：4.4V
- Current - Output：1A
- Frequency - Switching：1MHz, 2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：16-VFQFN Exposed Pad
- Supplier Device Package：VQFN016V3030
- Grade：-
- Qualification：-
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Overview
The BD9B100MUV-E2 is a synchronous buck DC/DC converter manufactured by ROHM Semiconductor. It integrates a power MOSFET and controller within a VQFN016V3030 package. The device operates with an input voltage range of 2.7 V to 5.5 V, delivering a maximum output current of 1 A. The adjustable output voltage spans from 800 mV to 4.4 V. It features a switching frequency between 1 MHz and 2 MHz and maintains a typical static current of 10 µA. The component supports operation across a temperature range of -40 °C to +85 °C.
Feature Summary
- Integrates low on-resistance power MOSFETs for efficient synchronous rectification.
- Utilizes proprietary constant time control method to minimize consumption during light load conditions.
- Provides high-speed transient response performance suitable for dynamic load applications.
Applications
- Portable electronic devices requiring reduced standby power consumption
- Battery-powered equipment utilizing step-down conversion
- General-purpose low-power DC/DC conversion circuits
Procurement Notes
Verify the specific suffix E2 against official ROHM documentation to confirm compliance with RoHS standards and lead-free manufacturing processes. Confirm that the VQFN016V3030 package dimensions align with the target PCB footprint requirements. Ensure the selected variant matches the required thermal dissipation characteristics for the intended operating environment.
Selection Notes
Select this component when a compact solution is needed for single-output buck conversion with integrated power stages. The fixed switching frequency range allows for predictable electromagnetic interference profiles. Consider the 1 A output limit and input voltage window to ensure compatibility with the system's power rail architecture and load demands.
Part Context
This part belongs to the BD9B series of synchronous buck converters from ROHM Semiconductor. The series focuses on integrating controllers and power FETs to reduce external component count. The BD9B100MUV-E2 specifically targets applications prioritizing efficiency at light loads through specialized control algorithms while maintaining a small physical footprint.
Replacement Considerations
Consult official ROHM cross-reference guides for verified substitute part numbers. Direct replacements must match the pinout, voltage ratings, and current capabilities. Verify that any alternative component supports the same constant time control topology if light-load efficiency is critical.
