LM22670MRX-ADJ/NOPB

Due to market price fluctuations, if you need to purchase or consult the price. You can contact us or emial to us:   sales@allicdata.com

LM22670MRX-ADJ/NOPB is a monolithic integrated circuit and the application field focuses on DC/DC Switching Regulators and Voltage Regulators. This powerful device combines a high-side and low-side PWM power switch with a series of integrated functions such as current and temperature control and fault protection. The features provide an excellent performance and reliability characteristics.

The LM22670MRX-ADJ/NOPB’s wide input voltage range of 3.0 - 16V simplifies design in several applications with its short-circuit protection, auto recovery, over temperature protection and integrated low-side PMOS switch with an integrated high-side throw N-MOS switch associated with a current-mode PWM control scheme. The two output leads of the device allow the user to adjust the output voltage according to the needs.

The basic topology implemented in the LM22670MRX-ADJ/NOPB is a current-mode PWM switching regulator with a single ended output stage. This topology works based on the concept of utilizing a feedback-controlled power MOSFET switch as the main active element, along with its associated circuitry. The output voltage of the regulator is monitored in order to feed back to the power switch. The power MOSFET switch is driven by a switching circuit and a control circuit. An external voltage divider is usually used to measure the output voltage, which is then compared to a reference voltage in order to determine the feedback signal.

The functioning of the LM22670MRX-ADJ/NOPB starts with the external voltage divider measuring the output voltage. The output voltage is compared to the internal voltage reference within the control circuit. When the output voltage is higher than the reference, a pulse is sent to the power switch, thus turning it on. The on time of the power switch controls the amount of power delivered to the load while the off time controls the frequency of the output voltage. An external inductor is usually used to help filter the output voltage, as well as to provide current limiting and voltage regulation. The external capacitor is used to provide the required output voltage across the load.

The LM22670MRX-ADJ/NOPB is a highly efficient and reliable device that can provide the maximum current of 2A with a dropout voltage of 0.6V. Other features such as soft start and EMI shielding provide a great benefit for different applications. This device is mainly used in mobile chargers, laptop computers, digital cameras, and other portable devices. Its outstanding performance and user-friendly design make this IC an ideal choice for variety of applications.

The specific data is subject to PDF, and the above content is for reference