LMR23630FDRRR

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The LMR23630FDRRR is a DC-to-DC switch mode regulator from Texas Instruments. It is designed for use in dc-dc power systems, commonly found in consumer electronics. This part is a programmable version of the LMR23630F that features current-mode control and high switching frequencies up to 5.6MHz. It has an adjustable reference voltage for fast system load transients, as well as programmable soft-start and power good delay. Additionally, it features short circuit protection and over-temperature protection.

The LMR23630FDRRR provides improved system performance by supporting small and fast load transients, as well as suitable system operating voltage accuracy across line and temperature variations. It also eliminates the need for manual control components and reduces board space. Moreover, the LMR23630FDRRR simplifies emi-filter designs and reduces standby power consumption.

The LMR23630FDRRR is ideal for many automotive, industrial and consumer applications. It is well suited for dc-dc converter applications such as motor and fan control, lighting control, audio amplifiers, battery chargers and portable electronics. It is available in SOIC-14 and VSON-14 packages.

Working Principle

The LMR23630FDRRR is a synchronous step-down dc-to-dc regulator with an internal 2A, 40V power switch. It supports a wide input voltage range of 4V to 40V, making it a suitable solution for many automotive and industrial applications. The internal power switch provides high power efficiency and a wide input voltage range. The LMR23630FDRRR also has a programmable frequency to optimize system performance.

The LMR23630FDRRR uses a voltage-mode control architecture with a current-mode modulation. The voltage-mode control ensures robust line and load transient response, while the current-mode modulation provides fast load transients with minimal output voltage ripple. The device also features programmable soft-start and power good delay, adjustable reference voltage, under-voltage lockout, short circuit protection, and over-temperature protection.

The LMR23630FDRRR operates at high switching frequencies up to 5.6MHz. The programmable frequency allows for optimization of the EMI filter design and reduces the size of surface mounted components. The device also provides a low quiescent current in standby of 10μA and a low power stand-by mode, allowing for minimal power consumption in stand-by mode.

Conclusion

The LMR23630FDRRR is a high-performance dc-to-dc switch mode regulator from Texas Instruments. It is designed to provide fast load transients, minimal output voltage ripple and a wide input voltage range, making it suitable for a wide range of automotive, industrial and consumer applications. It also features programmable soft-start and power good delay, adjustable reference voltage, and short circuit protection. The LMR23630FDRRR is a great choice for motor and fan control, lighting control, audio amplifiers, battery chargers and portable electronics.

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