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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.5A 8HTSOP
- 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)：4.5V
- Voltage - Input (Max)：42V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：42V
- Current - Output：1.5A
- Frequency - Switching：250kHz ~ 500kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 150°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-HTSOP-JES
- Grade：-
- Qualification：-
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Overview
The BD9G201EFJ-LBE2 is a single-channel synchronous buck DC/DC converter manufactured by ROHM Semiconductor. It integrates a power MOSFET and controller within an 8-pin HTSOP-J package. The device supports an input voltage range of 4.5 V to 42 V, delivering a maximum output current of 1.5 A. The adjustable output voltage spans from 0.8 V to 42 V. Operating parameters include a fixed switching frequency of 300 kHz and a typical quiescent current of 10 µA. The component functions reliably across an extended temperature range from -40 °C to +105 °C.
Feature Summary
- Integrates a low on-resistance N-channel power MOSFET with the control circuitry for compact design.
- Employs current mode control architecture to ensure rapid transient response and simplified phase compensation.
- Features a wide input voltage capability suitable for industrial bus voltage applications.
- Includes comprehensive protection mechanisms such as over-current protection, under-voltage lockout, and thermal shutdown.
Applications
- Industrial equipment power distribution
- Point-of-load regulation in automation systems
- General-purpose DC/DC conversion for embedded controllers
Procurement Notes
Verify the specific suffix LBE2 against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Ensure the ordering part number matches the required tape-and-reel quantity specifications. Cross-reference the manufacturing date code to align with long-term supply availability requirements for industrial deployments.
Selection Notes
Select this component when a high-input voltage buck converter is required with integrated power switching capabilities. The 1.5 A output rating suits moderate load applications where board space is constrained. Consider the 300 kHz switching frequency for balancing efficiency and external component size. Verify that the thermal performance of the HTSOP-J package meets the system's heat dissipation needs under maximum load conditions.
Part Context
This part belongs to the BD9G201 series of synchronous buck converters designed for robust industrial environments. The series emphasizes high input voltage tolerance and integration to reduce external component count. The BD9G201EFJ-LBE2 variant specifically utilizes the HTSOP-J8 package to provide enhanced thermal dissipation compared to standard SOP packages, supporting reliable operation in demanding thermal conditions.
Replacement Considerations
Consult official substitution lists for direct replacements. Potential alternatives may include other ROHM BD9G series devices with adjusted current ratings or input voltage ranges. Verify pin-to-pin compatibility and electrical parameter alignment before transitioning designs to substitute components.
