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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：570kHz
- 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 BD9E301EFJ-LBE2 is a synchronous rectification step-down DC/DC converter manufactured by ROHM Semiconductor. It integrates a power MOSFET and controller within an 8-lead HTSOP-J package. The device supports an input voltage range of 7 V to 36 V and delivers an output current of 2.5 A. It operates with a switching frequency of 1 MHz, enabling the use of compact inductors. The regulator provides adjustable output voltages starting from 1 V, utilizing current mode control for rapid transient response.
Feature Summary
- Integrates low on-resistance power MOSFETs for high efficiency
- Employs current mode control architecture for stable operation
- Features fast transient response capabilities via optimized phase compensation
- Supports wide input voltage ranges suitable for industrial applications
Applications
- Industrial equipment power distribution
- Point-of-load regulation for embedded systems
- General purpose DC/DC conversion in consumer electronics
Procurement Notes
Verify the specific suffix LBE2 against official datasheets to confirm pinout and thermal pad configuration. Ensure compatibility with the target PCB footprint, specifically the HTSOP-J8 package dimensions. Confirm availability status as product lifecycles may change; consult manufacturer notices for any pending PCNs or obsolescence warnings before finalizing procurement plans.
Selection Notes
Select this component when a wide input voltage range up to 36 V is required alongside moderate output current. The integrated MOSFET design simplifies bill of materials and reduces board space compared to discrete solutions. Consider the 1 MHz switching frequency for balancing component size against electromagnetic interference requirements in dense layouts.
Part Context
This part belongs to the BD9E300 series of buck converters designed for industrial markets. These devices are characterized by their robustness and long-term supply stability. The series utilizes constant on-time control methods to achieve low standby power consumption, making them suitable for applications requiring efficient power management under varying load conditions.
Replacement Considerations
The BD9E300EFJ-LBE2 is a related variant within the same family offering similar electrical characteristics. Verify pin-to-pin compatibility and thermal performance metrics before substitution. Consult official replacement guides to ensure functional equivalence in the specific application circuit.
