DPA425PN Highly Integrated DC-DC Converter IC

DPA425PN Highly Integrated DC-DC Converter IC

The DPA425PN is a highly integrated DC-DC converter IC from Power Integrations, designed for isolated and non-isolated power supply applications. It combines a high-voltage power MOSFET, a PWM controller, and control logic into a single monolithic IC, enabling compact, efficient, and reliable power conversion solutions.

With its advanced control techniques and high-frequency operation, the DPA425PN simplifies the design of DC-DC converters, reducing component count and board space while achieving excellent efficiency and thermal performance. It is especially suitable for distributed power architectures, telecom systems, and industrial power supplies where reliability and performance are critical.

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Features

• Integrated 220 V power MOSFET and PWM controller
• Wide input voltage range: 36 V to 72 V DC
• Delivers up to 30 W output power (typical)
• High efficiency (>85%) with minimal external components
• Programmable switching frequency up to 400 kHz
• Cycle-by-cycle current limiting and thermal shutdown
• Under-voltage and over-voltage protection
• Soft-start for controlled output rise
• Excellent line and load regulation
• Low EMI and reliable startup performance
• Compact DIP-8 or SMD package options

Applications

• DC-DC converters in telecom and networking equipment
• Isolated industrial control power supplies
• Battery-powered systems and distributed power modules
• High-efficiency auxiliary power supplies
• 48 V input power systems
• Data communication and base station power systems

DPA IC Datasheet