LM34923MM/NOPB

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The LM34923MM/NOPB switching regulator is one of the most popular voltage regulators from Texas Instruments, and is a great choice for many applications. The LM34923MM/NOPB is a DC-DC switching regulator, ideal for high fidelity on-board voltage regulation, supporting a wide input voltage range from 4.5V to 42V and an adjustable output voltage range from 0.75V to 30V. The LM34923MM/NOPB has several features that make it ideal for many applications, including:

1. High Efficiency - The LM34923MM/NOPB switching regulator has a high conversion efficiency that helps reduce thermal stress on the system.

2. Low Standby Current - The LM34923MM/NOPB features an extremely low operating current, allowing it to operate in battery powered applications without draining the battery.

3. Flexible Control - The LM34923MM/NOPB can easily be tracked by a microcontroller and configured with a simple frequency and duty cycle control range.

Application Field

The LM34923MM/NOPB is a great choice for many applications including high-current battery chargers, DC motor control, and LED lighting. The LM34923MM/NOPB can be used to regulate the voltage from a solar panel in a solar-powered system, or to power a remote device with an adjustable output voltage. The LM34923MM/NOPB is also often used in portable electronics, such as laptops and tablets.

Working Principle

The LM34923MM/NOPB is a synchronous buck switching regulator. It operates by switching an internal power MOSFET between the input voltage source and the output load. The switching frequency is adjustable from 400 kHz to 1.2 MHz, with a duty cycle that is adjustable from 0% to 90%. The LM34923MM/NOPB also features programmable under-voltage lockout, over-voltage protection, and over-temperature protection.

The LM34923MM/NOPB switching regulator has an adjustable Soft-Start feature, which allows for the gradual start-up of the output voltage. This helps eliminate any potential in-rush current that could be damaging to the system. The LM34923MM/NOPB also has an adjustable current limit. This allows the user to set an upper limit on the maximum current that the regulator can draw from the input voltage source.

The LM34923MM/NOPB has a wide temperature range and excellent reliability. It is available in both a TO-263 and SOT-223 package, allowing it to be used in a variety of applications. The LM34923MM/NOPB is designed to operate up to 25A and at input voltages up to 42V. The LM34923MM/NOPB has an adjustable output voltage from 0.75V to 30V, and can produce an output current up to 25A. It is an ideal choice for many different applications.

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