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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 BD9323EFJ-E2 is a switching voltage regulator manufactured by ROHM Semiconductor, classified as a Step-Up DC/DC Converter with Boost topology. It operates within an input voltage range of 4.75 V to 18 V and provides a single adjustable output voltage from 1 V to 15 V. The device supports a maximum output current of 3 A and functions at a switch frequency between 300 kHz and 460 kHz. Designed for surface mount installation in HTSOP-J8 packages, it ensures reliable performance across an operating temperature range of -40°C to +85°C.
Feature Summary
- Integrates a power MOSFET within the IC to minimize external component count and reduce overall system cost.
- Employs current-mode control architecture to achieve high-speed response characteristics and simplified phase compensation.
Applications
- Portable electronic devices requiring efficient step-up power conversion
- Battery-powered equipment utilizing wide input voltage ranges
- General-purpose DC-DC conversion in consumer electronics
Procurement Notes
Verify the lifecycle status before procurement, as this component is marked NRND (Not Recommended for New Designs). Confirm package integrity upon receipt, as the unit weighs approximately 100 mg. Ensure compliance with RoHS and REACH standards during integration. Cross-reference datasheet specifications against design requirements to avoid obsolescence risks in long-term production cycles.
Selection Notes
Select this component when a boost topology is required for inputs up to 18 V. The integrated MOSFET simplifies layout compared to discrete solutions. Verify that the application environment stays within the specified -40°C to +85°C thermal limits. Consider the HTSOP-J8 package constraints for PCB space and thermal dissipation needs relative to the 3 A output capability.
Part Context
This part belongs to the BD932x series of integrated MOSFET DC-DC converters from ROHM. These regulators are designed for applications needing compact power solutions with minimal external components. The series utilizes current-mode control for stability and efficiency. This specific model focuses on boost conversion capabilities within the standard industrial temperature range.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided documentation. Due to the NRND status, alternative sourcing should be evaluated carefully against current design requirements.
