LM27313XQMF/NOPB

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LM27313XQMF/NOPB is a part of Texas Instruments’ power management integrated circuits that can be categorized under the category of PMIC - Voltage Regulators - DC DC Switching Regulators.

This particular voltage regulator features 0.750V to 8V output voltage range, 350mA output current and provides step down and step up conversion. It can be used in both the buck and boost applications.

LM27313XQMF/NOPB has a wide operating temperature range of -40ºC to +125ºC and comes in a 1 mm x 1 mm 8-pin WQFN package with an exposed pad. It also has a high frequency of up to 1 MHz. It can operate as an independent regulator or as an integrated, synchronous BMC-family device.

Other features and benefits of LM27313XQMF/NOPB include low external component count, high protection against temperature extremes, low vibration, and high operating temperature range. It also has built-in foldback protection and the ability to handle short-circuits.

As far as the application field is concerned, LM27313XQMF/NOPB can be used in portable and industrial applications. Since it is small in size and operates with low current draw, this voltage regulator is also suitable for battery-powered applications.

The working principle of LM27313XQMF/NOPB is based on a control loop that is used to reduce the output voltage noise. The control loop consists of a high-speed comparator, an error amplifier and a high-speed PWM comparator. The comparator measures the input voltage, the current sampled by the error amplifier, and the threshold voltage.

The input signal is processed by the error amplifier, which is then compared with the input signal to determine the error signal. This feedback loop is used to control the output voltage, thereby regulating the output voltage.

When the output voltage is above the threshold voltage, the comparator sends a signal to the PWM comparator, which in turn converts the signal into pulses. These pulses will then be triggered to the power devices, and the output voltage will be set based on the PWM signals.

When the output voltage drops below the threshold voltage, the PWM signals will be stopped and the output voltage will be increased by the power devices. This process will be repeated until the output voltage is stabilized or reaching its maximum or minimum voltage.

Overall, LM27313XQMF/NOPB is a compact and efficient DC/DC switching regulator designed for portable and industrial applications. It is easy to use and integrates all the necessary components for controlling the output voltage in a single chip.

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