MPD7D057S

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

DC-DC converters are power conversion circuits designed to convert a DC input voltage into a different DC output voltage. The MPD7D057S is a high-performance, low-quiescent-current, synchronous buck switching regulator capable of supplying up to 0.5A output current. It operates from a 4V to 24V input, and is adjustable from 0.8V to 18V through an external resistor divider.

The MPD7D057S switching regulator has several features which make it ideal for portable applications. Its wide input and output voltage range is ideal for applications powered from batteries, while its high efficiency and low quiescent current enable it to be used in systems which require low power dissipation over a variety of loads. The MPD7D057S can operate at switching frequencies up to 1MHz, and is capable of delivering a 0.5A load with high efficiency and minimum noise generation.

Internally, the MPD7D057S contains a low ON-state resistance synchronous MOSFET switch, modulated by a fixed frequency voltage mode PWM controller. The switching frequency is user programmable, allowing the designer to choose the optimal frequency for switching performance and system noise. The PWM controller includes an internal soft-start circuit, which reduces the input in-rush current, and a thermal protection circuit, which shuts down the device if the junction temperature exceeds a predetermined maximum value.

In operation, the switching regulator steps down the input voltage, and regulates the output voltage. The switch is turned on and off at a constant frequency determined by the user, enabling the output voltage to be regulated to a precise level. The current flowing through the switch is proportional to the differential voltage between the input and output voltages, enabling the output current to be regulated to a precise level. The switching frequency is high enough that the output inductor\'s ripple current remains constant, enabling the output voltage to remain steady.

The MPD7D057S is designed for applications which require low operating power, high efficiency, and low noise. Its wide input and output voltage range makes it ideal for battery powered applications, while its high efficiency and low quiescent current enable it to be used in low power systems. The user programmable switching frequency allows the designer to optimize the performance of the regulator, while the built-in thermal protection circuit protects the device from possible damage caused by overheating. In all, the MPD7D057S is an ideal choice for applications which require high performance and low power.

The specific data is subject to PDF, and the above content is for reference