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Rohm BM2P131X-Z AC/DC Converter IC - 650V Buck Topology

The BM2P131X-Z from Rohm Semiconductor is a high-performance, non-isolated AC/DC converter IC featuring an integrated 650V power switch and PWM control. Designed for compact, cost-effective power supply applications, this IC delivers reliable performance across industrial, consumer, and telecom systems.

Key Features

  • 650V High-Voltage Breakdown: Enables direct AC line operation with robust overvoltage margin
  • Buck Topology: Efficient step-down conversion for low-power applications
  • 65kHz Switching Frequency: Balances efficiency and component size
  • Integrated Soft Start: Reduces inrush current and improves system reliability
  • Comprehensive Protection: Current limiting, over-temperature, over-voltage, open circuit, and UVLO safeguards
  • Wide Operating Range: -40°C to 105°C ambient temperature rating
  • Through-Hole Package: 7-DIPK format for easy prototyping and reliable PCB mounting

Typical Applications

  • Auxiliary power supplies for industrial equipment
  • Standby power for consumer electronics
  • Low-power AC/DC adapters and chargers
  • Smart home and IoT device power modules
  • Telecom and networking equipment

Design Resources

Full datasheets, reference designs, and application notes are available to accelerate your design-in process. Our technical team provides support for schematic review, component selection, and compliance guidance.

All specifications are subject to change without notice. Please refer to the official datasheet for the most current information.

Product Attributes Property Value
Manufacturer Rohm Semiconductor
Product Series
Packaging Tube |
Output Isolation Non-Isolated
Internal Switch(s) Yes
Voltage - Breakdown 650V
Topology Buck
Voltage - Start Up 7.7 V
Voltage - Supply (Vcc/Vdd) 12V ~ 14.04V
Duty Cycle 40%
Frequency - Switching 65kHz
Power (Watts) -
Fault Protection Current Limiting, Open Circuit, Over Temperature, Over Voltage, UVLO
Control Features Soft Start
Operating Temperature -40°C ~ 105°C (TA)
Grade -
Qualification -
Mounting Type Through Hole
Package / Case 8-DIP (0.300", 7.62mm), 7 Leads
Supplier Device Package 7-DIPK
ROHS RoHS Compliant - Hazardous Substance Free Electronic Components | HQICKEY