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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1A 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)：36V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：25.2V
- Current - Output：1A
- Frequency - Switching：570kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 150°C (TJ)
- 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 BD9E101FJ-LBGH2 is a synchronous rectification step-down DC/DC converter IC designed for industrial applications. It features an integrated power MOSFET and operates within an input voltage range of 7V to 36V, delivering a maximum output current of 1A. The device utilizes current mode control for fast transient response and allows easy phase compensation setting. It supports an adjustable output voltage from 1V to 25.2V and includes comprehensive protection mechanisms such as over-current, short circuit, thermal shutdown, and under-voltage lockout.
Feature Summary
- Synchronous single-channel DC/DC converter with integrated low on-resistance power MOSFET
- Current mode control architecture enabling high-speed transient response and simplified phase compensation
- Wide input voltage range suitable for generating low voltages like 5.0V from higher sources
- Long-term supply guarantee designated for industrial equipment markets
Applications
- Industrial equipment power supplies
- General-purpose DC/DC conversion systems
- Evaluation board development using the BD9E101FJ-EVK-001 kit
Procurement Notes
Verify the specific suffix H2 against the manufacturer's official datasheet to confirm package type and tape/reel specifications. Ensure compatibility with the intended operating temperature range of -40°C to 150°C junction temperature. Confirm RoHS compliance status through the latest product documentation before finalizing procurement orders.
Selection Notes
Select this component for designs requiring a compact synchronous buck solution with built-in FETs. It is suitable for applications needing wide input voltage tolerance and robust protection features. Consider the HTSOP-J8 package dimensions when planning PCB layout. Verify that the required output current does not exceed the 1A maximum rating under all operating conditions.
Part Context
This part belongs to the BD9E series of integrated MOSFET DC-DC converters from ROHM Semiconductor. The series focuses on constant on-time control methods for high efficiency at light loads. These regulators are engineered for industrial and automotive-grade reliability, offering long-term support and stable supply chains for critical electronic systems.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official documentation for recommended alternatives or obsolescence notices.
