The MP20042DG-LF-Z is a monolithic step-down switch mode converter with a built-in internal high-side high voltage power MOSFET. It achieves 2A continuous output current from a 4.5V to 55V input voltage range with excellent load and line regulation. Current mode operation provides fast transient response and eases loop stabilization.

Applications:

• Industrial Power Systems
• Automotive Systems
• Networking Equipment
• Distributed Power Architectures

Features:

• Wide 4.5V to 55V Operating Input Range
• 2A Continuous Output Current
• Internal High-Side Power MOSFET
• Fixed 500kHz Switching Frequency
• High Efficiency up to 90%
• AAM (Advanced Asynchronous Modulation) Power-Saving Mode
• Adjustable Soft-Start Time
• Over-Current Protection (OCP) with Valley Current Detection
• Over-Voltage Protection (OVP)
• Short-Circuit Protection (SCP) with Hiccup Mode
• Thermal Shutdown
• Available in a SOIC8E Package

Benefits:

• The wide input voltage range makes it suitable for various industrial and automotive applications.
• High efficiency reduces power dissipation and improves system performance.
• Internal soft-start limits inrush current during startup.
• Robust protection features enhance system reliability.
• Small package size saves board space.

Additional Details:

The MP20042DG-LF-Z uses a constant-on-time (COT) control, which provides fast transient response and simplifies loop compensation. The AAM mode improves light load efficiency. Adjustable soft-start allows users to optimize the start-up behavior. Over-current protection prevents damage from overload conditions, and over-voltage protection safeguards the load from excessive voltage. Short-circuit protection (SCP) with hiccup mode reduces stress on the device during short-circuit events. The device also includes thermal shutdown protection to prevent overheating. It is available in a compact SOIC8E package, minimizing board space. This part is also RoHS compliant.