LM2675N-ADJ/NOPB

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LM2675N-ADJ/NOPB Application Field and Working Principle

As a member of the PMIC voltage regulator DC/DC switching regulator family, LM2675N-ADJ/NOPB is widely used in industrial, consumer and access applications. It is an off-line, step-down DC/DC converter featuring low standby current, variable output voltage and excellent line/load regulation.

The LM2675NF-ADJ/NOPB is designed to operate as a fixed frequency, current mode controller. It operates from an input voltage range from 4.5 to 27V and provides a regulated output voltage from 0.781 to 25V.

In operation, the LM2675N-ADJ/NOPB compares the FB voltage to an internal reference and controls the external switch current to maintain a constant output voltage. The LM2675N-ADJ/NOPB provides fast transient response, low output voltage ripple and good stability over input and output voltage, temperature and loading range.

The LM2675N-ADJ/NOPB also includes a number of protection features. These include an under-voltage lockout (UVLO) to keep the switch off until the input voltage rises above a preset threshold. The UVLO has an adjustable threshold that allows the designer to set a minimum input voltage.

In addition, the LM2675N-ADJ/NOPB includes over-temperature protection (OTP) and short circuit protection (SCP). OTP limits the die temperature to a safe level. If the die temperature exceeds the OTP limit, the LM2675N-ADJ/NOPB will shut down. SCP limits the switch current to a safe level, for instance, if the power diode is shorted.

The LM2675N-ADJ/NOPB provides excellent performance and reliability under a wide input and output voltage, temperature and loading range in telecommunications, computer, consumer and industrial applications.

LM2675N-ADJ/NOPB is an excellent choice for powering DSPs and other microprocessor-based systems with demanding power requirements. Its wide input and output voltage ranges, fast transient response, low output voltage ripple and high temporal stability make it well suited for FEIC, FCC and other power sensitive, precision power designs.

In conclusion, the LM2675N-ADJ/NOPB is a versatile, high performance, low-voltage DC/DC converter designed to meet a wide range of application requirements. It provides fast transient response, low output voltage ripple, good line/load regulation and excellent protection features. It is also suitable for a variety of industrial, consumer and access applications.

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