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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)：26.78V
- 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 BM2P241X-Z is a non-isolated PWM DC/DC converter IC designed for AC/DC applications. It integrates a 650V super junction MOSFET and a startup circuit to facilitate compact power supply designs. The device operates with an input voltage range of 12 V to 26.78 V and features a fixed switching frequency of 65 kHz. Key electrical parameters include a maximum duty cycle of 45%, a quiescent current of 850 uA, and an on-resistance of 1.9 Ω. It supports a wide operating temperature range from -40°C to +105°C and utilizes a DIP-7 package.
Feature Summary
- Integrates a 650V super junction MOSFET and startup circuit for efficient design
- Employs PWM current mode control with frequency hopping to reduce EMI
- Supports burst operation at light load conditions for improved efficiency
- Includes built-in protection mechanisms such as thermal shutdown and UVLO
Applications
- Power systems for products utilizing AC adapters
- Non-isolated high-efficiency converter designs
- Compact consumer electronics power supplies
Procurement Notes
Verify the specific suffix 'X' against the official ROHM datasheet to confirm pinout and functional compatibility, as suffixes often denote package or tape-and-reel variations. Ensure the application environment remains within the specified -40°C to +105°C operating temperature range. Confirm that the non-isolated topology aligns with safety requirements for the target end-product. Cross-reference the DIP-7 package dimensions with the mechanical drawing provided in the specification sheet.
Selection Notes
Select this component for applications requiring a non-isolated AC/DC conversion solution with integrated switching capabilities. The fixed 65 kHz frequency and current mode control make it suitable for designs prioritizing transient response and bandwidth. Consider the 1.9 Ω on-resistance for thermal management calculations. This IC is intended for standard-grade applications and is not recommended for automotive equipment use.
Part Context
The BM2P241X-Z belongs to the BM2P series of AC/DC converters manufactured by ROHM Semiconductor. These ICs are part of the PMIC category, specifically designed for power management in non-isolated topologies. The series leverages silicon technology to provide integrated solutions that simplify the design of efficient power supplies for various electronic devices.
Replacement Considerations
The BM2P241W-Z is a confirmed substitute within the same family, sharing identical specifications including the 650V MOSFET and 65 kHz switching frequency. Both parts utilize the DIP-7 package and support the same input voltage range.
