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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.5A 8SOPJ
- 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)：7V
- Voltage - Input (Max)：28V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：5V
- Current - Output：1.5A
- Frequency - Switching：330kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width)
- Supplier Device Package：8-SOP-J
- Grade：-
- Qualification：-
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Overview
The BD9E103FJ-E2 is a synchronous buck DC/DC converter manufactured by ROHM Semiconductor. It integrates a power MOSFET and controller in an HTSOP-J8 package. The device accepts an input voltage range of 7 V to 28 V and provides an adjustable positive output up to 1.5 A. Key electrical parameters include a switching frequency of 330 kHz, a minimum operating temperature of -40°C, and a maximum operating temperature of +85°C.
Feature Summary
- Integrates synchronous rectification for enhanced efficiency
- Features adjustable positive output capability
- Includes integrated power MOSFET and controller
Applications
- Industrial equipment power supplies
- General-purpose low voltage generation
- Embedded system power management
Procurement Notes
Verify the specific datasheet version when ordering, as manufacturers may issue Product Change Notices (PCN) that update specifications without altering electrical characteristics. Confirm the package type HTSOP-J8 and ensure compatibility with your PCB footprint. Cross-reference the manufacturer part number BD9E103FJ-E2 with authorized distributors to guarantee authenticity and traceability.
Selection Notes
Select this component for applications requiring a wide input voltage range up to 28 V and moderate output current of 1.5 A. The integrated MOSFET design simplifies bill of materials and reduces external component count compared to non-integrated solutions. Consider the 330 kHz switching frequency for balancing efficiency and passive component size requirements in space-constrained designs.
Part Context
This part belongs to the BD9E series of synchronous buck converters from ROHM Semiconductor. These devices are designed for industrial markets with a focus on long-term supply stability. The series typically features integrated FETs to minimize solution size and simplify phase compensation setup for stable operation across various load conditions.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Verify pin-to-pin compatibility and electrical parameter overlaps with potential alternatives before substitution.
