LMZ23603TZX/NOPB

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DC-DC converters are electronic components that convert a direct current (DC) input voltage from one level to another. LMZ23603TZX/NOPB is a fully integrated synchronous buck converter that employs an internal N-MOSFET and an internal P-MOSFET to switch load current with two independent comparators for current sensing and accurate current limiting. Its input voltage range is 4.5 V – 28 V, and the output voltage is adjustable from 0.6 V to 24 V.

The LMZ23603TZX/NOPB converts the input voltage into a regulated output voltage by switch-mode power conversion technique. This technique uses switching elements (which are typically transistors) that switch on and off at high frequencies, and passive components (e.g. inductors and capacitors) that store and transport energy over time. When high-frequency switching is combined with a voltage regulator, it can be used to effectively convert various input voltages and regulate the output. This technique is more efficient than traditional linear power conversion.

The LMZ23603TZX/NOPB is optimized for a wide range of applications, including industrial, automotive, consumer electronics, power architecture and battery-level applications. It integrates the controller, a current sense amplifier, an integrated power MOSFET and PWM comparators. This allows for efficient point-of-load applications which require a high current conversion ratio, such as GPUs, FPGAs, AC-DC voltage converters and high power loads, such as electric vehicles.

LMZ23603TZX/NOPB adopts a two-phase synchronous rectification topology to convert and limit power at the source. The power stages are driven by a PWM signal derived from the integrated pulse width modulator. The PWM signal is developed by the current-mode control, where the feedback voltage is used as a reference and the output voltage is compared to it. The result of the comparison is used to adjust the duty cycle of the PWM signal and ensure that the output voltage is regulated.

LMZ23603TZX/NOPB is equipped with dynamic average current mode control which features fast line, load transient response and efficiency optimization. The converter\'s output can be precharged to an optimized voltage level prior to device startup to reduce stress on the components and minimize inrush current. The line and load regulation of the device is better than 0.2% at the nominal load current.

The accuracy of the current sensing is ±1.25% while operating in typical temperature conditions without calibration. The internal soft-start ensures that the output voltage is ramped up to the desired voltage level without overshoot and ringing. The device provides reverse current protection and short-circuit protection, ensuring safe operation even in extreme power supply conditions. There are several protection features, such as thermal shutdown, output over-voltage protection and over-temperature protection, which protect the LMZ23603TZX/NOPB\'s components against damage.

The LMZ23603TZX/NOPB DC-DC converter is an efficient, reliable, and versatile device that provides a simple, low-cost solution for a wide range of power applications. It is designed for less power loss and superior performance, and offers advanced protection features that enable safe, reliable operation.

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