LM22670MRE-5.0/NOPB

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LM22670MRE-5.0/NOPB is a linear voltage regulator that is commonly used in applications that require the conversion of a high voltage source to a lower voltage output. It is a step-down switching regulator with an integrated MOSFET that is used to regulate the output voltage level. The output voltage level is regulated by the voltage feedback to the controller and by a reference voltage that sets the maximum output level. The feedback control circuitry can be programmed using external components to set the desired output voltage.

It is mainly used for DC-DC applications such as power factor correction (PFC) converters, current-mode PFC converters, LED lighting applications, polarity voltage converters, and so on. Its advantages include high peak current and low external component count compared to other types of step-down regulators. The device operates with very low noise, has low EMI emissions, and can survive an extremely high load transient condition.

The working principle of LM22670MRE-5.0/NOPB is similar to that of a buck converter- it converts a high-voltage input to a regulated and lower output voltage. The power stage uses a single FET switch and the controller uses a voltage feedback loop that is monitored by an external resistor. The MOSFET is driven by an internal oscillator and the switching frequency is set by an external resistor. The current-mode control loop regulates the output voltage by controlling the on-time of the MOSFET. When an over-voltage is detected, the device will turn off the switch and stop further current from flowing through the load.

The LM22670MRE-5.0/NOPB also offers user-friendly features such as an adjustable soft-start option and an over-temperature protection feature which helps protect the device against obvious overloads. This IC is also equipped with an over-voltage lockout (OVLO) protection circuit which ensures the output voltage is not higher than the maximum voltage limit. Additionally, the protected PWM controller provides the necessary protection against short-circuits and over-currents.

The LM22670MRE-5.0/NOPB is an ideal voltage regulator for applications that require high-precision voltage regulation, low noise and low EMI emissions. With its adjustable soft-start option and over-voltage lockout protection circuit, the LM22670MRE-5.0/NOPB can ensure an efficient and high-speed conversion of high-voltage input to a regulated and lower output voltage.

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