Monolithic Power Systems MPQ4560

Beschreibung

The MPQ4560 is a high-frequency, step-down, switching regulator with an integrated, highside, high-voltage, power MOSFET. It provides a 2A output with current mode control for fast loop response and easy compensation.The wide 3.8V-to-55V input range accommodates a variety of step-downapplications, including those in automotive input environment. A 12µA shutdown mode supply current allows use in battery-powered applications.High-power conversion efficiency over a wide load range is achieved by scaling down the switching frequency in light load conditions to reduce the switching and gate driving losses.Frequency foldback prevents inductor current runaway during startup and thermal shutdown provides reliable, fault tolerant operation.By switching at 2MHz, the MPQ4560 can prevent electromagnetic interference problems, such as those found in AM radio and ADSL applications.The MPQ4560 is available in small 3mm x 3mm QFN10 and SOIC8E packages.

Eigenschaften

• Guaranteed Industrial AutomotiveTemperature Range Limits
• Wide 3.8V-to-55V Operating Input Range
• 250mΩInternal Power MOSFET
• Up to 2MHz Programmable Switching Frequency
• 140μA Quiescent Current
• Ceramic Capacitor Stable
• Internal Soft-Start
• Up to 95% Efficiency
• Output Adjustable from 0.8V to 52V
• Available in QFN10 (3mmx3mm) and SOIC8E Packages

Typische Anwendungen

• Industrial Power Systems
• Automotive Systems
• High Voltage Power Conversion
• Battery Powered Systems
• Distributed Power Systems

Weiterführende Informationen

• Datenblatt
• Produktseite des IC-Herstellers