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Product Detailed Parameters
- Description：IC REG BUCK ADJ 3A 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)：4.75V
- Voltage - Input (Max)：18V
- Voltage - Output (Min/Fixed)：0.9V
- Voltage - Output (Max)：16.2V
- Current - Output：3A
- Frequency - Switching：380kHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 85°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 BD9326EFJ-E2 is a non-synchronous buck DC/DC converter from ROHM Semiconductor, housed in an HTSOP-J8 package. It integrates a low on-resistance power MOSFET and controller on a single chip. The device supports an input voltage range of 4.75V to 18V and delivers a continuous output current of up to 3A. It operates with a switching frequency setting of up to 0.38MHz and provides an adjustable output voltage range from 0.9V to 14.4V. The unit features an enable pin, operates within a temperature range of -40°C to 85°C, and includes protection circuits such as UVLO, thermal shutdown, and overcurrent protection.
Feature Summary
- Integrates a low on-resistance power MOSFET and controller on a single chip for compact design.
- Utilizes current-mode control architecture for fast response characteristics and simplified phase compensation.
- Includes built-in protection mechanisms comprising under-voltage lockout, thermal shutdown, and overcurrent protection.
Applications
- General-purpose industrial equipment power supplies
- Consumer electronics devices requiring efficient step-down conversion
- Embedded systems with wide input voltage requirements
Procurement Notes
Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm component revision and RoHS compliance status. Confirm availability as standard grade components may have varying lifecycle statuses. Ensure the HTSOP-J8 package dimensions align with PCB layout constraints before finalizing procurement orders.
Selection Notes
Select this component when a non-synchronous topology meets efficiency requirements for loads up to 3A. The integrated MOSFET simplifies bill of materials by reducing external component count. Verify that the required output voltage falls within the 0.9V to 14.4V range and that the operating environment stays within the specified -40°C to 85°C temperature limits.
Part Context
This part belongs to the BD9326 series of integrated MOSFET DC-DC converters. These devices are designed to offer high efficiency and small footprint solutions by combining power switching elements with control logic. The series targets applications needing reliable step-down conversion without the complexity of external gate drivers or discrete power stages.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Consult official ROHM resources for cross-reference data if alternative sourcing is required.
