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Product Detailed Parameters
- Description：IC REG BUCK ADJ 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)：76V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：73.72V
- Current - Output：5A
- Frequency - Switching：100kHz ~ 650kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C
- 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 BD9G500UEFJ-LAE2 is a single-channel synchronous buck DC-DC converter from ROHM Semiconductor, designed for industrial applications. It features an integrated high-side MOSFET and supports an input voltage range of 7V to 76V. The device delivers a maximum output current of 5A with an adjustable switching frequency between 100kHz and 650kHz. It utilizes current mode control for fast transient response and simplified phase compensation. Key electrical parameters include a minimum operating temperature of -40°C and a maximum of 125°C, housed in an HTSOP-J8 package.
Feature Summary
- Integrated high-side power MOSFET for compact design
- Current mode control architecture enabling rapid load transient response
- Wide adjustable switching frequency range for optimized filter component selection
- Comprehensive protection suite including over-current, under-voltage lockout, thermal shutdown, and over-voltage protection
Applications
- Industrial equipment power supplies
- Secondary side power conversion for 12V or 24V systems
- General-purpose step-down voltage regulation in harsh environments
Procurement Notes
Verify the specific suffix 'LAE2' against official ROHM documentation to confirm manufacturing line changes and long-term supply status. Ensure compatibility with existing design models and datasheets, as functional specifications remain identical to predecessor variants like BD9G500EFJ-LA. Confirm RoHS compliance and packaging details directly with authorized distributors prior to ordering.
Selection Notes
Select this component when a wide input voltage range up to 76V is required alongside high output current capability. The current mode control topology simplifies external compensation network design compared to voltage mode alternatives. Consider the adjustable frequency feature to minimize passive component size while maintaining stability across varying load conditions in industrial settings.
Part Context
This part belongs to the BD9G500 series of integrated MOSFET DC-DC converters. It serves as a production-line variant of the BD9G500EFJ-LA, intended to improve manufacturing efficiency without altering technical guarantees. The series is positioned for long-term support in industrial markets, offering robust performance in high-voltage step-down applications.
Replacement Considerations
The BD9G500EFJ-LA is documented as having identical technical specifications and design models. ROHM indicates that unless otherwise specified, data for the EFJ variant applies to the UEFJ version. Designers transitioning from older revisions should verify pinout and thermal characteristics remain consistent.
