LM46001PWPR

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The LM46001PWPR, from Texas Instruments, is a monolithic, 1.5A DC-DC buck switching regulator. It is capable of driving loads up to 1.5A and is ideal for applications that require a regulated voltage, such as portable and battery-powered devices. The LM46001PWPR is capable of taking an input voltage ranging from 2.9V to 16V and regulating it to a preferred output voltage, ranging from 0.7V to 5.25V, depending on the operating configuration. This voltage regulator is capable of switching at frequencies of up to 2MHz, allowing for higher efficiency power supplies. The LM46001PWPR is offered in 4 different versions, each designed for different applications.

The LM46001PWPR is a typical step-down switching regulator. The switching regulator consists of three primary parts, the input capacitor, the inductor, and the output capacitor. The input capacitor is used to filter incoming voltage from the power source, preventing AC ripple from entering the regulator. The inductor helps to store energy when the switch is closed and limit the current when the switch is open. Lastly, the output capacitor is used for additional filtering of the voltage output.

The LM46001PWPR is capable of operating in either PWM (pulse width modulation) or PFM (pulse frequency modulation) mode, depending on the application. In PWM mode, the voltage at the switching regulator is regulated by turning the switch on and off at a fixed rate. The duty cycle is the amount of time that the switch is “on” as compared to the total amount of time. By varying the duty cycle, the average voltage delivered to the output can be changed based on the load.

In PFM mode, the voltage at the switching regulator is regulated by controlling the frequency at which the switch turns on and off. The frequency is modified in order to maintain the output voltage. PFM mode is typically used when the load is light and the system is designed for efficiency.

The LM46001PWPR is designed for a variety of applications, including portable and battery-powered devices, such as cell phones, PDAs, and mp3 players. Its wide input voltage range, up to 16V, makes it well suited for automotive electronics, as well as automated equipment and industrial control systems. The regulator is also capable of operating at very high frequencies (2MHz maximum) which makes it ideal for high-efficiency power supplies.

In summary, the LM46001PWPR is a monolithic, 1.5A DC-DC buck switching regulator from Texas Instruments. It is capable of taking an input voltage of 2.9V to 16V, depending on the operating configuration, and regulating it to an output voltage of 0.7V to 5.25V. The regulator is designed for a variety of applications, including portable and battery-powered devices, automotive electronics, automated equipment and industrial control systems. It is capable of switching at frequencies up to 2MHz and is ideal for high efficiency power supplies.

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