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Product Detailed Parameters
- Description：IC REG BUCK 850A 7DIPK
- Series：-
- Mfr：Rohm Semiconductor
- Package：Tube
- Function：-
- Output Configuration：Positive
- Topology：Buck
- Output Type：-
- Number of Outputs：1
- Voltage - Input (Min)：12V
- Voltage - Input (Max)：18.14V
- Voltage - Output (Min/Fixed)：-
- Voltage - Output (Max)：-
- Current - Output：850µA
- Frequency - Switching：65kHz
- Synchronous Rectifier：No
- Operating Temperature：-40°C ~ 105°C (TA)
- 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 BM2P161X-Z is a PWM type DC/DC converter IC with an integrated switching MOSFET, designed for non-isolated AC/DC applications. It operates within an input voltage range of 8 V to 18.16 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 super junction MOSFET. Key specifications include a maximum drain voltage of 650 V, an operating temperature range from -40 °C to +105 °C, and a DIP-7 package.
Feature Summary
- Integrates a 650 V耐压 super junction MOSFET and startup circuit to simplify design and reduce power consumption.
- Employs PWM current mode control with per-cycle current limiting for excellent bandwidth and transient response.
- Features frequency reduction and burst operation at light loads to achieve high efficiency across varying load conditions.
- Includes built-in frequency hopping functionality to assist in achieving low electromagnetic interference (EMI).
Applications
- Non-isolated buck converters for general-purpose power supplies
- Control power sources for inverters and similar industrial equipment
- Low-power AC/DC conversion systems requiring compact design
Procurement Notes
Verify the exact suffix character against official ROHM documentation, as 'BM2P161X' appears to be a placeholder or variant indicator. Confirm that the specific part number matches the required input voltage range (8 V to 18.16 V) and packaging (DIP-7). Ensure compliance with RoHS standards and check for any automotive usage restrictions specified in the datasheet.
Selection Notes
Select this component for non-isolated applications requiring a fixed 65 kHz switching frequency and integrated high-voltage MOSFET. It is suitable for designs prioritizing low EMI through frequency hopping and high efficiency via light-load frequency reduction. Consider the DIP-7 package for through-hole mounting requirements and verify thermal management needs within the -40 °C to +105 °C operating range.
Part Context
The BM2P161 series belongs to ROHM's family of PWM-type DC/DC converter ICs with integrated switching MOSFETs. These devices are engineered for AC/DC conversion, offering solutions for both isolated and non-isolated topologies. The series emphasizes miniaturization and energy efficiency, incorporating advanced protection circuits and low-noise features to support modern power supply designs.
Replacement Considerations
Publicly confirmed substitute part numbers for BM2P161X-Z were not found in the provided source material. Verify compatibility with existing designs by comparing pinouts, electrical parameters, and thermal characteristics with alternative ROHM models such as BM2P161W-Z if functional equivalence is required.
