LMR14203XMK/NOPB

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The LMR14203XMK/NOPB is a high-efficiency, high-density, synchronous step-down DC-DC switching regulator. It is available in a very small, space-saving 5 mm x 6 mm, lead-free, RoHS-and REACH-compliant package and is designed with excellent transient response, high current capability, and good thermal performance. This makes the LMR14203XMK/NOPB ideal for space-constrained applications such as portable, industrial, and automotive systems. This article will provide an overview of the LMR14203XMK/NOPB’s applications and working principle.

Applications

The LMR14203XMK/NOPB is ideal for applications such as portable devices, battery-operated systems, telecommunication systems, automotive systems, and general Industrial control systems. It is especially suited for applications where high efficiency, excellent transient response, and small footprint are required. The device is also well suited for use in LED lighting applications due to its high current capability.

The LMR14203XMK/NOPB is an ideal choice for applications where the input voltage is greater than the output voltage. It can accept an input voltage range of 3 V to 100 V and provides an output voltage range of 0.8 V to 35 V. Its high efficiency and excellent transient response make it ideal for switching sensitive loads such as FPGAs and DSPs. The device is capable of delivering up to 10 A of continuous output current and up to 20 A output currents. Its low minimum operating frequency of 450 kHz enables light-load efficiency and excellent low-frequency noise performance.

Working Principle

The LMR14203XMK/NOPB utilizes a synchronous buck topology to provide efficient conversion of the input voltage to the desired output voltage. It features a unique internal high-side MOSFET gate drive circuit that provides extremely fast switching speed and reduced active and quiescent power consumption. The device employs a simple, single loop compensation network, allowing the user to quickly and easily set the desired operating frequency of the device.

The device also features several protection features, including an adjustable under-voltage lockout, thermal shutdown, and over-current protection. These protection features make the LMR14203XMK/NOPB highly reliable, enabling it to withstand harsh environmental and operating conditions. Additionally, the device is rated for ambient operating temperatures up to 125°C, which allows it to operate in extreme temperatures for extended periods of time.

Conclusion

The LMR14203XMK/NOPB is a high-efficiency, high-density, synchronous step-down DC-DC switching regulator. It is ideal for applications such as portable devices, battery-operated systems, telecommunication systems, automotive systems, and Industrial control systems. It is capable of accepting an input voltage range of 3 V to 100 V, providing an output voltage range of 0.8 V to 35 V, and delivering up to 10 A of continuous output current. The device features a unique, internal high-side MOSFET gate drive circuit, a simple, single loop compensation network, and several protection features, making it a reliable and robust solution for a wide range of applications.

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