The MPS Industries, Inc. MP18601DN-LF-Z is a monolithic step-down switch-mode converter with a built-in internal power MOSFET. It achieves 6A continuous output current with excellent load and line regulation over a wide input voltage range. The device incorporates advanced protection features and is available in a compact package.

Applications

• FPGA and DSP Power Supplies
• Set-Top Boxes
• Networking Equipment
• LCD Monitors and TVs
• Industrial Power Supplies

Features

• Wide 4.5V to 24V Operating Input Range
• 6A Continuous Output Current
• Built-in Internal Power MOSFETs
• Adjustable Switching Frequency from 350kHz to 650kHz
• Internal Soft-Start
• Over-Current Protection (OCP)
• Short-Circuit Protection (SCP) with Hiccup Mode
• Over-Voltage Protection (OVP)
• Thermal Shutdown
• Available in a QFN16 (3mmx3mm) Package

Benefits

• High efficiency reduces power dissipation and increases system reliability.
• Small solution size saves board space and lowers system cost.
• Adjustable switching frequency allows optimization for efficiency and EMI.
• Robust protection features ensure safe operation under fault conditions.
• Simplified design with internal soft-start and compensation.

Additional Details

The MP18601DN-LF-Z utilizes constant-on-time (COT) control architecture, providing fast transient response and simplifying loop compensation. The adjustable switching frequency allows designers to optimize the trade-off between efficiency and EMI performance. The internal soft-start function limits inrush current during startup, reducing stress on the input capacitors. The over-current, short-circuit, and over-voltage protection features ensure reliable operation under fault conditions. The thermal shutdown feature protects the device from overheating. The QFN16 package provides excellent thermal performance and allows for compact PCB layouts. This converter is suitable for a wide range of applications where high efficiency, high current capability, and robust protection are required.