MP2493DS-LF-Z

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The MP2493DS-LF-Z is an integrated high voltage DC-DC converter with up to 88% conversion efficiency. It provides a wide range of functionality for power delivery applications, offering high-precision output current regulation and adjustable output voltage regulation capabilities. The device operates using an internal gate driver, which is controlled by an independent regulated power controller. All components are contained within a 4mm x 4mm that can be placed on any pc board layout.

Application Field

The MP2493DS-LF-Z is suitable for a variety of applications, including portable consumer electronics such as mobile phones and wearable devices, FPGA and ASIC powered consumer electronics, industrial motor controllers, lighting systems, and automotive electric vehicles. It is also suitable for high-power DC-DC converters, switching regulators, and point of load converters.

Working Principle

The MP2493DS-LF-Z is an integrated switch mode DC-DC power supply and regulator. It uses a multi-mode control method that combines pulse-width modulation (PWM) and pulse-frequency modulation (PFM) techniques for maximum power transfer efficiency when operating in both continuous and discontinuous currents. The device can provide adjustable output voltage through an internal voltage regulator. The output current is also regulated through the use of a built-in current control circuit. The regulation can be set through an external control pin and is monitored internally.

The device employs a low-side MOSFET switch in order to regulate the output voltage and current. When the output voltage and current are regulated, the low-side switch is turned off to suppress even small ripple current. Additionally, the device can provide burst mode operation for improved efficiency without producing noise at light loads. It also provides a low-power standby mode for energy savings and standby current is adjustable through a resistor.

The device is also equipped with integrated protection features including an adjustable over voltage protection and a programmable under voltage lock-out (UVLO). Other protection features include an adjustable over-temperature protection, short-circuit protection, and over-current protection.

The MP2493DS-LF-Z also features a wide input voltage range (3-20V) and high efficiency, allowing it to be used in a variety of applications. For example, it can be used in portable devices powered by a single-cell lithium-ion battery, and it can also deliver up to 5A of continuous output current.

Conclusion

The MP2493DS-LF-Z is a highly integrated DC-DC converter that can provide adjustable output voltage and current regulation for many applications. Its high efficiency and wide input voltage range make it suitable for a variety of applications. In addition, the device is equipped with several protection features to ensure optimal performance and reliability. All components are integrated in a single 4mmx4mm package, which makes the device ideal for high-density designs.

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