LM22676TJ-ADJ/NOPB

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The LM22676TJ-ADJ/NOPB is an advanced step-down DC-DC switching regulator by Texas Instruments (TI) that is suitable for applications requiring low power conversion and small footprints. This regulator implements a control loop to optimize efficiency and transient response, as well as a voltage reference circuit for accuracy. It is designed to be highly efficient and is capable of providing large load current with low output voltage ripple.

This switching regulator integrates an internal synchronous gate driver, low gate voltage and low gate charge MOSFET, current sensing circuitry and an inductor in an 8-Pin QFN package size. It is rated with up to 4.5A peak switch current, operates up to 95% efficiency and is stable with an output capacitance of 10uF. The LM22676TJ features programmable switching frequency and peak current limit, adjustable soft-start, over-temperature protection, a shutdown mode and is adjustable with external resistors.

The LM22676TJ-ADJ/NOPB is a bit different from other switching regulators as it does not have an output voltage feedback pin. Instead, the voltage is set with the reference voltage of the internal voltage source. The voltage source includes a voltage reference, current limit and internal compensation, enabling the use of smaller external components that further reduce system size. This makes the LM22676TJ-ADJ/NOPB ideal for any application that requires high efficiency, with a small solution size.

It is easy to design as the LM22676TJ-ADJ/NOPB supports a wide input voltage range of 3V to 20V, adjustable output voltage and a switching frequency of up to 12MHz that can be programmed using external resistors. The device offers many protection features such as programmable over temperature protection, under voltage lockout, over current protection and cycle-by-cycle open-drain output signal to signal the overtemperature or overcurrent protection is triggered.

The LM22676TJ-ADJ/NOPB is designed to be highly efficient and can provide large load current with low output voltage ripple. The device features a synchronous gate driver and a low gate charge MOSFET that can handle large switching currents. It includes an adjustable soft-start and programmable peak current limit to reduce overall system cost and improve system efficiency.

The working principle of the LM22676TJ-ADJ/NOPB is simple and involves the transfer of energy from the input to the output. This is done by a switching regulator, which is hooked up to an inductor. The inductor stores energy during the ON period, and then releases it during the OFF period. This transfer of energy is regulated by controlling the ON/OFF times of the switch, which is typically done by pulse width modulation (PWM).

The LM22676TJ-ADJ/NOPB can be used in a variety of PMIC (Power Management IC) applications, such as portable computing and consumer electronics. In addition, it is also suitable for automotive, industrial control, IoT, wireless control and medical applications. This is because it features excellent performance when it comes to industry grade power requirements and efficient power conversion.

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