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Product Detailed Parameters
- Description：IC REG BUCK 5V 2A VQFN20FV4040
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：3.5V
- Voltage - Input (Max)：40V
- Voltage - Output (Min/Fixed)：5V
- Voltage - Output (Max)：-
- Current - Output：2A
- Frequency - Switching：2.2MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount, Wettable Flank
- Package / Case：20-VFQFN Exposed Pad
- Supplier Device Package：VQFN20FV4040
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The BD9P255MUF-CE2 is a single synchronous buck DC/DC converter from ROHM Semiconductor, designed for automotive applications. It features Nano Pulse Control technology and operates with an input voltage range of 3.5 V to 40 V. The device provides a fixed output voltage of 5 V at a maximum output current of 2 A. It integrates power MOSFETs and operates at a switching frequency of 2.2 MHz. The component is qualified under AEC-Q100 standards and supports functional safety analysis.
Feature Summary
- Utilizes Nano Pulse Control technology to achieve stable operation with high step-down ratios and fast transient response.
- Incorporates spread spectrum functionality to reduce electromagnetic interference (EMI) and system noise.
- Provides stable power supply during battery start-up conditions, enhancing reliability in automotive environments.
Applications
- Advanced Driver Assistance Systems (ADAS) sensors
- Automotive cameras and radar systems
- In-vehicle infotainment units
- Instrument clusters
- Body Control Modules (BCM)
Procurement Notes
Verify the specific suffix CE2 against official datasheets to confirm package type and tape & reel specifications. Ensure compatibility with automotive functional safety requirements if applicable. Cross-reference part numbers with manufacturer updates or Product Change Notices (PCNs) to account for potential specification revisions without electrical characteristic changes.
Selection Notes
Select this component for designs requiring high efficiency and compact size in automotive power architectures. The integrated FET topology reduces external component count. Consider the 2.2 MHz switching frequency for inductor size optimization. Verify thermal performance within the -40°C to +125°C operating range for the target application environment.
Part Context
This part belongs to the BD9P series of ROHM Semiconductor, which focuses on 42V withstand voltage primary DC/DC converters for automotive use. The series emphasizes miniaturization, high efficiency, and high reliability. It is categorized under PMIC - Power Management ICs and Switching Voltage Regulators.
Replacement Considerations
Check for direct substitutes within the BD9P series or other ROHM automotive buck converters with similar input/output ranges. Verify pin-to-pin compatibility and electrical parameter alignment before substitution.
