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Product Detailed Parameters
- Description：IC REG BUCK 850A 8SOP
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tape & Reel (TR),Cut Tape (CT)
- Function：-
- Output Configuration：Positive
- Topology：Buck
- Output Type：-
- Number of Outputs：1
- Voltage - Input (Min)：12.4V
- Voltage - Input (Max)：15.33V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：850µA
- Frequency - Switching：100kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 105°C (TA)
- Mounting Type：Surface Mount
- Package / Case：8-SOIC (0.173", 4.40mm Width)
- Supplier Device Package：8-SOP
- Grade：-
- Qualification：-
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Overview
The BM2P159PF-E2 is a PWM type DC/DC converter IC with an integrated switching MOSFET designed for non-isolated AC/DC applications. It features a fixed switching frequency of 100 kHz and utilizes current mode control for superior bandwidth and transient response. The device incorporates a 650V耐压 startup circuit and a built-in current detection resistor to facilitate compact, high-efficiency designs. It supports light load frequency reduction and includes a spread spectrum function to minimize EMI.
Feature Summary
- Integrates a 650V super junction MOSFET and startup circuit for simplified design
- Employs current mode control with per-cycle current limiting
- Includes built-in current detection resistor for reduced component count
- Features spread spectrum functionality to lower electromagnetic interference
Applications
- Non-isolated AC/DC power supplies
- Systems requiring sockets or connectors
- Compact high-efficiency converter designs
Procurement Notes
Verify the specific suffix 'E2' against the manufacturer's latest documentation to confirm RoHS compliance status and exact package dimensions. Ensure the SOP-8 package size matches the target PCB footprint requirements. Confirm that the application does not involve automotive equipment, as this product is explicitly excluded from such use cases.
Selection Notes
Select this component for non-isolated topologies requiring integrated power switching. The fixed 100 kHz frequency suits designs where EMI filtering needs to be managed via spread spectrum techniques. The internal current detection resistor reduces external BOM complexity. Verify input voltage ranges align with the 12.4 V to 15.33 V specifications provided in official datasheets.
Part Context
This part belongs to the ROHM BM2P series of PWM DC/DC converters. These ICs are engineered for non-isolated applications, combining controller logic with high-voltage MOSFETs. The series emphasizes ease of design for systems with sockets, offering integrated protection features like thermal shutdown and under-voltage lockout within a compact SOP-8 package.
Replacement Considerations
Publicly confirmed substitute part numbers are not available in the provided source material. Consult the manufacturer's official cross-reference documentation for potential alternatives.
