LM5000SDX-6

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LM5000SDX-6 Application Field and Working Principle

The LM5000SDX-6 is a Class V, low-to-medium voltage DC-DC switching regulator that is designed for switching power supply applications that demand high efficiency, small size, and low cost. Class V is the highest in terms of power efficiency among the standard switching regulators and is suitable for high-efficiency and moderate-to-large size applications.

The highlights of the LM5000SDX-6 are its high-efficiency up to 94%, low-voltage operation up to 4.5V, small size: a single-chip solution in a 2mm x 2mm package and low cost. The key features that make this product ideal for the high-efficiency, battery-powered designs are its low-voltage operation and high-efficiency.

Working Principle

The LM5000SDX-6 operates by employing a variable oscillator to control the power switching frequency. By fast switching the power devices (FETs) and using pulse width modulation, the LM5000SDX-6 provides a high power efficiency at a wide range of output voltages and currents. The LM5000SDX-6 regulates the output voltage by controlling the duty cycle of the power switches and by having an internal reference voltage. The output voltage is monitored and fed back to the PFM controller.

The LM5000SDX-6 is designed to allow the user to configure various parameters that can be altered to fine-tune the performance of the power supply design. Examples of these parameters include the switching frequency and the output voltage. The LM5000SDX-6 is also equipped with a variety of protection features including over-voltage, over-current, and short-circuit protections.

Application Fields

The LM5000SDX-6 is ideal for battery-powered applications that require high efficiency and small size. It is well-suited for applications such as mobile phones, PDAs, battery-powered handheld equipment, portable industrial and medical equipment, smart cards, digital still cameras, netbooks, and notebooks. The LM5000SDX-6 can also be used to convert automatically the system voltage to an adjustable regulated output voltage.

The LM5000SDX-6 is a low-voltage solution that offers an attractive combination of high power efficiency and low system cost. It is ideal for battery-powered applications that require high-efficiency, low-voltage operation, small size and low cost. The LM5000SDX-6 is a cost-effective, highly reliable and efficient DC-DC switching regulator solution.

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