MP1430中文资料3A, 28V, 385KHz Step-Down Converter数据手册MPS规格书

描述 Description

The MP1430 is a step-down regulator with an internal Power MOSFET. It achieves 3A continuous output current over a wide input supply range with excellent load and line regulation.

Current mode operation provides fast transient response and eases loop stabilization. Fault condition protection includes cycle-by-cycle current limiting and thermal shutdown. Adjustable soft-start reduces the stress on the input source at turn-on. In shutdown mode the regulator draws 20µA of supply current.

The MP1430 requires a minimum number of readily available external components to complete a 3A step down DC to DC converter solution.

特性 Features

• 3A Output Current
• Programmable Soft-Start
• 110mΩ Internal Power MOSFET Switch
• Stable with Low ESR Output Ceramic Capacitors
• Up to 95% Efficiency
• 20µA Shutdown Mode
• Fixed 385KHz Frequency
• Thermal Shutdown
• Cycle-by-Cycle Over Current Protection
• Wide 6V to 28V Operating Input Range
• Output Adjustable from 1.22V
• Under Voltage Lockout
• Available in 8-Pin SOIC Package

应用 Application

• Distributed Power Systems
• Battery Chargers
• Pre-Regulator for Linear Regulators
• Flat Panel TVs
• Set-Top Boxes
• Cigarette Lighter Powered Devices
• DVD/PVR Devices