LMR10510XMFX/NOPB Integrated Circuits (ICs)

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LMR10510XMFX/NOPB Application Field and Working Principle

The LMR10510XMFX/NOPB is a single-channel synchronous switching regulator designed for automotive applications. It is a step-down DC/DC controller operating with an integrated, high-side and low-side MOSFET that can provide up to 25V and 15A of output power. This device offers excellent efficiency with a 3.5V to 17V input voltage range and is capable of providing up to 95% efficiency when enabled. It also provides over-voltage, over-current, short-circuit protection and thermal shutdown protection.

The LMR10510XMFX/NOPB is a versatile device that can be used in a variety applications including automotive infotainment systems, power supplies, battery management systems, and motor control applications. The LMR10510XMFX/NOPB integrates features and functions which increase system efficiency, reduce external components count and provide a cost-effective solution.

Application Fields

• Automotive Infotainment Systems.
• Power Supplies.
• Battery Management Systems.
• Motor Control.

Working Principle

The LMR10510XMFX/NOPB uses synchronous rectification to provide high efficiency performance with a wide input voltage range. It implements a synchronous buck converter with a single output stage. The integrated high-side and low-side MOSFETs are capable of handling up to 15A of output current with 25V of output voltage.

The device operates in a Pulse Width Modulation (PWM) mode, where the integrated high-side MOSFET is turned on while the low-side MOSFET is turned off. This creates a high-side switch path that allows current flow from the source to the output while the low-side MOSFET is in the off state. When the low-side MOSFET is turned on, the source current is diverted to the inductor, creating an increase in inductor current. When the output voltage reaches the desired regulation level, the high-side MOSFET is turned off and the low-side MOSFET is turned on to sink the current back to the output. This process repeats at the switching frequency until the load is satisfied.

The LMR10510XMFX/NOPB is integrated with several protection features such as over-voltage, over-current, short-circuit protection and thermal shutdown protection. This makes the device a reliable and efficient solution for various automotive applications.

Conclusion

The LMR10510XMFX/NOPB is a single-channel synchronous switching regulator designed for automotive applications with up to 25V and 15A of output power. It integrates features and functions which make it suitable for automotive infotainment systems, power supplies, battery management systems, and motor control applications. The device has integrated over-voltage, over-current, short-circuit protection and thermal shutdown protection which makes it a reliable and efficient solution.

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