The MP1210HN is a high-performance synchronous rectified step-down converter from Exar Corporation (now part of MaxLinear). It is designed to deliver a regulated output voltage from a wide input voltage range with high efficiency. The MP1210HN incorporates internal MOSFETs to minimize external components and simplify the design process.

Applications

• Point-of-load DC-DC conversion
• Distributed power systems
• Set-top boxes
• Networking equipment
• Industrial power supplies

Features

• Input Voltage Range: Wide input voltage range, typically from 4.5V to 28V.
• Output Voltage: Adjustable output voltage via external resistor divider.
• Output Current: Capable of delivering up to 3A of continuous output current.
• High Efficiency: High efficiency synchronous rectification reduces power losses.
• Internal MOSFETs: Integrated high-side and low-side MOSFETs simplify design and reduce component count.
• Current Mode Control: Current mode control architecture provides excellent line and load regulation.
• Adjustable Switching Frequency: Switching frequency can be adjusted for optimal performance and efficiency.
• Overcurrent Protection (OCP): Built-in overcurrent protection prevents damage to the converter and load.
• Overtemperature Protection (OTP): Integrated overtemperature protection shuts down the converter in case of overheating.
• Enable/Disable Control: Enable/Disable pin allows for easy power sequencing and shutdown.
• Package: Available in a compact QFN package for space-constrained applications.

Benefits

• High Efficiency: Synchronous rectification and optimized control algorithms provide high efficiency, reducing power losses and heat dissipation.
• Compact Size: Integrated MOSFETs and a small package size enable compact designs.
• Reliability: Built-in protection features ensure reliable operation under various conditions.
• Ease of Use: Simplified design and minimal external components make the MP1210HN easy to use.
• Versatility: Wide input voltage range and adjustable output voltage make it suitable for various applications.

Technical Specifications

The MP1210HN operates with an input voltage range of 4.5V to 28V. The output voltage can be adjusted using an external resistor divider. The device is capable of delivering up to 3A of continuous output current. The switching frequency is adjustable and typically ranges from 200kHz to 2MHz. Protection features include overcurrent protection, overtemperature protection, and undervoltage lockout. The package is QFN.