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Product Detailed Parameters
- Description：IC REG BUCK 1.2V 3A 8HTSOP-J
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：Fixed
- Number of Outputs：1
- Voltage - Input (Min)：2.69V
- Voltage - Input (Max)：5.5V
- Voltage - Output (Min/Fixed)：1.2V
- Voltage - Output (Max)：-
- Current - Output：3A
- Frequency - Switching：2.25MHz
- Synchronous Rectifier：Yes
- Operating Temperature：-40°C ~ 125°C (TJ)
- 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 BD90532EFJ-CE2 is a fixed-output synchronous step-down DC/DC converter manufactured by ROHM Semiconductor. It operates with an input voltage range of 2.69 V to 5.5 V and provides a fixed output voltage. The device integrates a switching frequency of 2.25 MHz, enabling the use of compact external components. Designed for automotive applications, it supports a junction temperature range from -40°C to +125°C and is housed in an HTSOP-J8 package.
Feature Summary
- Synchronous buck topology for high efficiency
- Fixed output voltage configuration
- Automotive grade qualification
Applications
- Automotive electronic control units
- In-vehicle infotainment systems
- Dashboard instrumentation power supplies
Procurement Notes
Verify the specific suffix CE2 against the official datasheet to confirm package type and tape-and-reel specifications. Ensure the fixed output voltage matches the system requirement, as adjustable variants exist within the same family. Confirm AEC-Q100 compliance status for the intended automotive application environment.
Selection Notes
Select this component when a stable, fixed voltage rail is required from a 12V or 24V vehicle battery system via pre-regulation. The 2.25 MHz frequency allows for smaller inductors compared to lower-frequency alternatives. Verify that the load current does not exceed the IC's thermal limits within the specified operating temperature range.
Part Context
This part belongs to ROHM's automotive-grade PMIC portfolio, specifically designed for robust performance in harsh electrical environments. It complements other BD9xx series converters by offering a fixed-output option, simplifying design implementation for standard voltage rails in connected car architectures.
Replacement Considerations
Check for BD90525EFJ-CE2 if a 1.5V fixed output is acceptable. For adjustable output requirements within the same voltage range, consider the BD90521EFV-C series, noting the pinout and package differences.
