The MP2560 is a high frequency step-down switching regulator with a built-in high side high voltage power MOSFET. It provides 2.5A output current mode control for fast loop response and easy compensation. The wide 4.5V to 42V input range is suitable for a variety of step-down applications, including those in automotive input environments.
The 12 μA off mode static current can be used for battery powered applications. High power conversion efficiency over a wide load range is achieved by reducing switching frequency under light load conditions to reduce switch and gate drive losses. Frequency folding helps prevent inductive current runaway during startup and hot shutdown providing reliable, fault-tolerant operation.
By switching at 4MHz, the MP2560 is able to prevent EMI(electromagnetic interference) noise problems such as those found in AM radio and ADSL applications. The MP2560 is available in a 3mm x 3mm QFN10 and heat-enhanced SOIC8 package.
External package reference
Block diagram
Operation
The MP2560 is a variable frequency, asynchronous step-down switching regulator with an integrated high side high voltage power MOSFET. It provides a single efficient solution with current mode control, fast loop response and easy compensation. It features a wide input voltage range, internal soft start control and precise current limiting. Its extremely low operating static current makes it suitable for battery powered applications.
Typical application
Features
● 120μA static current
● 4.5V to 42V wide working input range
● 220mΩ internal power MOSFET
● Programmable switch up to 4MHz frequency
● Ceramic capacitor stabilization
● Internal soft start
● Internal current limit, no external setting current sensing resistance
● Efficiency up to 93%
● The output is adjustable from 0.8V to 39V
● Optional 3x3 QFN10 and thermal enhanced SOIC8 pack
Applications
● High voltage power conversion
● Automobile system
● Industrial power system
● Distributed power system
● Battery powered system
