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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)：3.5V
- Voltage - Input (Max)：36V
- Voltage - Output (Min/Fixed)：0.8V
- Voltage - Output (Max)：36V
- Current - Output：2.5A
- Frequency - Switching：50kHz ~ 600kHz
- 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：-
- Qualification：-
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Overview
The BD90620UEFJ-CE2 is a single-channel step-down switching regulator manufactured by ROHM Semiconductor, designed for automotive applications. It features an integrated power MOSFET and operates within an input voltage range of 3.5 V to 36 V. The device supports a maximum output current of 2.5 A with an adjustable output voltage from 800 mV to 36 V. It utilizes a buck topology and offers a switchable switching frequency between 50 kHz and 600 kHz. Qualified under AEC-Q100 standards, it functions reliably across a temperature range of -40°C to +125°C.
Feature Summary
- Integrates a high-voltage power MOSFET and controller in a compact package
- Supports external synchronization for noise management in complex systems
- Includes soft-start functionality to limit inrush current during startup
- Features overcurrent protection mechanisms for enhanced system safety
Applications
- Automotive infotainment and display power supplies
- On-board navigation and telematics unit regulation
- Industrial control system power distribution
- General-purpose DC-DC conversion in automotive ECUs
Procurement Notes
Verify the specific ordering suffix matches the required package and tape/reel specifications. Confirm that the component meets the necessary AEC-Q100 qualification grade for your target application environment. Ensure compatibility with existing design constraints regarding thermal management and PCB layout requirements before finalizing procurement orders.
Selection Notes
Select this regulator when a wide input voltage range up to 36 V is required alongside a 2.5 A output capability. Consider this part for designs needing flexible switching frequency adjustment to optimize efficiency or reduce EMI. Evaluate the HTSOP-J8 package dimensions against available board space and verify that the non-synchronous topology aligns with the desired cost and performance balance for the target load profile.
Part Context
This component belongs to the BD90620 series of single-channel buck converters from ROHM. It serves as an evolution of previous models like the BD90620EFJ-C, offering updated manufacturing processes while maintaining identical electrical characteristics. The series is positioned within ROHM's automotive PMIC portfolio, focusing on robust performance and functional safety support for critical vehicle subsystems.
Replacement Considerations
The BD90620EFJ-C is a confirmed substitute part number within the same product family. Verify pinout compatibility and ensure that any changes in packaging or taping specifications do not impact assembly processes. No functional differences are guaranteed between these variants based on official documentation.
