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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)：7V
- Voltage - Input (Max)：28V
- Voltage - Output (Min/Fixed)：1V
- Voltage - Output (Max)：19.6V
- Current - Output：3A
- Frequency - Switching：550kHz
- 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 BD9E302EFJ-E2 is a single-channel synchronous buck DC/DC converter manufactured by ROHM Semiconductor. It integrates power MOSFETs and operates with an input voltage range of 7 V to 28 V, delivering a maximum output current of 3 A. The adjustable output voltage spans from 1 V to 19.6 V. Key electrical parameters include a fixed switching frequency of 550 kHz and a typical quiescent current of 10 uA. The device supports a shutdown function and functions within an operating temperature range of -40°C to +85°C. It is housed in an 8-pin HTSOP-J package.
Feature Summary
- Integrates low on-resistance power MOSFETs for efficient synchronous rectification.
- Utilizes SLLM (Simple Light Load Mode) control to maintain high efficiency under light load conditions.
- Employs current mode control architecture to ensure rapid transient response performance.
Applications
- Home appliances
- Telecommunication devices
Procurement Notes
Verify the specific suffix E2 against the manufacturer's latest datasheet to confirm pinout compatibility and RoHS status. Confirm that the application does not require automotive qualification, as this component is designated for standard industrial use only. Ensure thermal management aligns with the HTSOP-J8 package constraints during high-current operation.
Selection Notes
Select this component when a wide input voltage range up to 28 V is required alongside a 3 A output capacity. It is suitable for designs prioritizing standby power reduction through integrated light-load efficiency modes. Consider the 550 kHz switching frequency for balancing component size and electromagnetic interference requirements.
Part Context
This part belongs to the BD9E302 series of switching voltage regulators. It shares the HTSOP-J8 package form factor with other ROHM buck converters like the BD9E104FJ-E2, though it differs significantly in current handling and input voltage specifications. The E2 suffix typically denotes updated manufacturing revisions or compliance enhancements within the product line.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Designers should consult official ROHM resources for direct replacements or evaluate similar models within the BD9E series based on specific electrical parameter overlaps.
