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Product Detailed Parameters
- Description：IC REG BUCK 7DIPK
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tube
- Function：Step-Down
- Output Configuration：Positive
- Topology：Buck
- Output Type：-
- Number of Outputs：1
- Voltage - Input (Min)：12V
- Voltage - Input (Max)：15.12V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：-
- Frequency - Switching：65kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 105°C
- Mounting Type：Through Hole
- Package / Case：8-DIP (0.300", 7.62mm), 7 Leads
- Supplier Device Package：7-DIPK
- Grade：-
- Qualification：-
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Overview
The BM2P141X-Z is a non-isolated PWM DC/DC converter IC with an integrated switching MOSFET, designed for AC/DC applications. It operates within an input voltage range of 12 V to 15.12 V and features a fixed switching frequency of 65 kHz. The device utilizes current mode control for per-cycle current limiting and includes a built-in 650 V startup circuit. Key electrical parameters include a maximum drain voltage of 650 V, an operating temperature range from -40 °C to +105 °C, and a soft start function. It is housed in a 7-DIP package.
Feature Summary
- Integrates a 650 V super junction MOSFET and startup circuit for simplified design
- Employs PWM current mode method with per-cycle current limiting for stable performance
- Includes frequency hopping and burst operation at light load to reduce EMI and power consumption
Applications
- Non-isolated high-efficiency converters for products with AC outlets
- Middle power compact series power supplies
- General purpose AC/DC conversion systems
Procurement Notes
Verify the specific suffix 'X' against official ROHM documentation to confirm pinout and packaging details, as variations exist within the BM2P141 family. Ensure compliance with RoHS standards and check for automotive usage restrictions explicitly stated in the datasheet. Confirm thermal management requirements given the through-hole DIP-7K package and operating temperature limits.
Selection Notes
Select this component for designs requiring a non-isolated buck topology with integrated power switching. It is suitable for applications needing fixed 65 kHz operation and low standby power via burst mode. Consider the 12 V to 15.12 V input window and ensure the load does not exceed the single output capability. Verify that the DIP-7K package fits the mechanical constraints of the target enclosure.
Part Context
This part belongs to the BM2P141 series of AC/DC converter ICs from ROHM Semiconductor. The series focuses on reducing system size and cost by integrating high-voltage MOSFETs and control logic. The BM2P141X-Z variant specifically targets middle-power applications, offering a balance between efficiency and component count reduction compared to discrete solutions.
Replacement Considerations
BM2P131W-Z and BM2P151S-Z are related variants in the same family. Check input voltage ranges (14.04 V max for BM2P131, 16.2 V max for BM2P151) and MOSFET on-resistance differences before substitution.
