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Product Detailed Parameters
- Description：IC REG BUCK ADJ 2.5A 8HTSOP-J
- 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：2.5A
- Frequency - Switching：1MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 150°C (TJ)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-HTSOP-J
- Grade：-
- Qualification：-
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Overview
The BD9E300UEFJ-LBH2 is a synchronous buck DC-DC converter manufactured by ROHM Semiconductor. It features an input voltage range of 7V to 36V and delivers a maximum output current of 2.5A. The adjustable output voltage spans from 1V to 25.2V. Operating with a switching frequency up to 1MHz, the device integrates low on-resistance power MOSFETs. It utilizes current mode control for fast transient response. The component supports an operating junction temperature range from -40°C to +150°C and is housed in an HTSOP-J8 package.
Feature Summary
- Integrated low on-resistance power MOSFETs within a synchronous rectification topology
- Current mode control architecture enabling high-speed transient response performance
- Wide input voltage support suitable for generating low output voltages such as 5.0V
- Comprehensive protection mechanisms including over-current, short circuit, thermal shutdown, and under-voltage lockout
Applications
- Industrial equipment power supplies requiring long-term supply assurance
- Systems demanding high-frequency operation with compact inductor sizes
- Applications necessitating robust transient response capabilities
- Power management circuits operating within wide industrial temperature ranges
Procurement Notes
Verify the specific suffix LBH2 against official datasheets to confirm pinout and thermal pad configuration. Confirm RoHS compliance status through manufacturer documentation. Ensure the selected packaging matches production requirements. Validate that the component meets all electrical specifications for the target application environment before integration.
Selection Notes
Select this model when a wide input voltage range up to 36V is required alongside a 2.5A output capacity. The 1MHz switching frequency allows for smaller passive components compared to lower-frequency alternatives. Current mode control is advantageous for designs prioritizing rapid load transient handling. Consider the HTSOP-J8 package constraints regarding thermal dissipation and PCB layout space.
Part Context
This component belongs to the BD9E300 series of integrated MOSFET DC-DC converters. It serves as a long-time support product specifically designated for industrial applications. The UE variant indicates a manufacturing line change from the EF series while maintaining identical technical specifications and design models for backward compatibility.
Replacement Considerations
The BD9E300EFJ-LBH2 is a confirmed substitute with identical technical specifications and design models. Both parts are functionally equivalent, allowing for direct replacement without circuit redesign. Verify package orientation and marking differences if present.
