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Product Detailed Parameters
- Description：IC REG BUCK ADJ 1.25A 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)：5V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：36V
- Current - Output：1.25A
- Frequency - Switching：50kHz ~ 500kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 125°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.154", 3.90mm Width) Exposed Pad
- Supplier Device Package：8-HTSOP-J
- Grade：Automotive
- Qualification：AEC-Q100
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Overview
The BD90610EFJ-CE2 is a single-channel step-down switching regulator manufactured by ROHM Semiconductor, designed for automotive applications. It operates within an input voltage range of 3.5V to 36V and delivers a maximum output current of 1.25A. The device supports adjustable switching frequencies from 50kHz to 600kHz and provides an output voltage range of 800mV to 36V. Qualified under AEC-Q100 Grade 1 standards, it functions reliably across temperatures from -40°C to +125°C. Packaged in HTSOP-J8, it integrates a Pch POWER MOSFET and features external synchronization capabilities.
Feature Summary
- Integrates a high-voltage Pch POWER MOSFET with the controller for compact design
- Supports external clock synchronization via dedicated input terminal
- Includes soft start function to limit inrush current during startup
- Features overcurrent protection and low supply voltage error prevention
Applications
- Automotive infotainment systems requiring stable power regulation
- Electronic control units (ECUs) operating on 12V battery architectures
- Industrial control modules needing wide input voltage tolerance
- Sensor interfaces demanding low dropout performance
Procurement Notes
Verify component authenticity through authorized distributors or direct manufacturer channels. Confirm lot traceability and RoHS compliance documentation prior to integration. Note that this part carries an NRND status, indicating it is not recommended for new designs; ensure existing production lines can sustain procurement volumes without disruption due to potential end-of-life transitions.
Selection Notes
Select this component when a robust, automotive-grade buck converter with integrated power FET is required. It suits designs needing wide input voltage flexibility and external synchronization to reduce electromagnetic interference. Consider alternative models if new product development is planned, given its non-recommended-for-new-design status. Ensure thermal management aligns with the HTSOP-J8 package constraints.
Part Context
This regulator belongs to ROHM's automotive PMIC portfolio, specifically engineered for high reliability in harsh environments. It shares the HTSOP-J8 footprint with other series members like the BD90620EFJ-C but offers lower current capacity. The CE2 suffix denotes specific packaging and qualification variants within the EFJ family line.
Replacement Considerations
The BD90610UEFJ-C is documented as a production line change variant with identical electrical specifications. For new designs, the BD90640EFJ-CE2 serves as a higher-current alternative within the same family.
