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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-LBH2 is a synchronous buck DC/DC converter from ROHM Semiconductor, designed for industrial applications. It integrates power MOSFETs and operates within an input voltage range of 7V to 36V. The device delivers up to 2.5A output current with adjustable output voltage starting from 1V. Operating at a switching frequency of 1MHz, it utilizes constant on-time control for fast transient response. The component is housed in an 8-HTSOP-J package with exposed pad for thermal management.
Feature Summary
- Integrates low on-resistance power MOSFETs for high efficiency
- Employs constant on-time control for rapid transient response
- Supports wide input voltage range suitable for industrial systems
- Enables compact design through high-frequency operation
Applications
- Industrial equipment power supplies
- General purpose DC-DC conversion
- Embedded system voltage regulation
Procurement Notes
Verify the specific suffix LH versus LBE2 when sourcing, as packaging or minor specifications may differ. Confirm availability status as some variants may be marked as not recommended for new designs. Ensure compatibility with required operating temperature ranges and check for any pending product change notices affecting electrical characteristics or physical dimensions before finalizing procurement plans.
Selection Notes
Select this component for designs requiring a wide input voltage range up to 36V and integrated power switches. The 1MHz switching frequency allows for smaller external inductors compared to lower frequency alternatives. Consider the 8-HTSOP-J package size and thermal requirements for PCB layout. Verify that the adjustable output voltage range meets the specific load requirements of the target application circuit.
Part Context
This part belongs to the BD9E series of integrated MOSFET DC-DC buck converters. The series is characterized by built-in power MOSFETs and constant on-time control architecture. These devices are targeted at industrial markets with a focus on long-term supply stability and high performance in demanding environments.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Evaluate other members of the BD9E series or similar ROHM synchronous buck converters based on pin compatibility and electrical parameter alignment.
