The MP3012DQ-LF-Z is a monolithic synchronous step-down switch mode converter with built-in internal power MOSFETs. It achieves 1.2A continuous output current from a 2.5V to 5.5V input voltage with excellent load and line regulation. The MP3012DQ implements constant-on-time (COT) control which provides very fast transient response, easy loop design and very tight output regulation.

Applications:

• Portable Electronics
• Point-of-Load (POL) Power Supplies
• Low Voltage Systems
• Battery-Powered Devices

Features:

• Wide 2.5V to 5.5V Operating Input Range
• 1.2A Continuous Output Current
• Internal Synchronous Rectifier for High Efficiency
• Low RDS(ON) Internal Power MOSFETs
• Constant-On-Time (COT) Control
• Fixed 1.5MHz Switching Frequency
• Internal Soft-Start
• Over-Current Protection (OCP)
• Short-Circuit Protection (SCP)
• Over-Temperature Protection (OTP)
• Available in a QFN-10 (3mmx3mm) Package

Benefits:

• High efficiency extends battery life in portable applications.
• Fast transient response ensures stable output voltage during load variations.
• Small package size allows for compact system designs.
• Integrated synchronous rectification minimizes external component count.
• Robust protection features enhance system reliability.

Additional Details:

The MP3012DQ-LF-Z employs a constant-on-time (COT) control scheme for superior transient response and simplified loop stabilization. The synchronous rectification significantly improves efficiency compared to traditional diode rectification. The internal soft-start function reduces inrush current during startup. Over-current protection (OCP) limits the output current during overload conditions. Short-circuit protection (SCP) prevents damage from short circuits. Over-temperature protection (OTP) shuts down the device when the junction temperature exceeds the safe limit. The fixed 1.5MHz switching frequency allows for small external component sizes. The low RDS(ON) of the internal MOSFETs minimizes conduction losses. This product is RoHS compliant.