The MP1492DS-A-LF-Z is a high-efficiency, synchronous, rectified, step-down switch-mode converter with built-in power MOSFETs. It achieves a 3A continuous output current over a wide input supply range with excellent load and line regulation. The device operates at high efficiency over a wide output current load range.

Applications:

• Distributed Power Systems
• Battery Chargers
• Pre-Regulators for Linear Regulators
• Notebook Computers
• Portable Devices

Features:

• Wide 4.5V to 24V Operating Input Range
• 3A Continuous Output Current
• Low RDS(ON) Internal Power MOSFETs
• High-Efficiency Synchronous Mode Operation
• Fixed 500kHz Switching Frequency
• AAM (Advanced Asynchronous Modulation) Power-Saving Mode
• Internal Soft-Start
• Over-Current Protection (OCP) with Valley Current Detection
• Short-Circuit Protection (SCP) with Hiccup Mode
• Over-Temperature Protection (OTP)
• Available in an 8-Pin SOIC Package

Benefits:

• High efficiency reduces heat dissipation and extends battery life in portable applications.
• The wide input voltage range allows for operation in a variety of systems.
• Internal soft-start reduces inrush current during startup.
• Robust protection features ensure safe and reliable operation.
• Small package size minimizes board space requirements.

Additional Details:

The MP1492DS-A-LF-Z utilizes a constant-on-time (COT) control architecture, providing fast transient response and stable operation. The AAM mode improves light load efficiency. The device is available in a small SOIC8 package. The internal power MOSFETs have low RDS(ON), minimizing conduction losses. The over-current protection (OCP) is implemented with valley current detection, providing reliable protection against overload conditions. The short-circuit protection (SCP) utilizes hiccup mode to reduce power dissipation during short-circuit events. Over-temperature protection (OTP) shuts down the device when the junction temperature exceeds a safe level. This device is lead-free and RoHS compliant.