LM2679SDX-ADJ

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LM2679SDX-ADJ, a synchronous switching regulator, is a DC-DC converter that can maintain output voltages beyond that of the employed voltage supply. It is designed to maintain a stable output voltage, by providing a specific internal impedance determined by the circuitry and the operating frequency of the device. It reduces fluctuations in power output and, is thereby, a highly efficient, cost-effective device. It is ideal for use in portable electronic devices, such as, notebook PCs. It is commonly used to control the voltage output of smartphones and tablet personal computers.

The most notable feature of the LM2679SDX-ADJ is its synchronous switching regulator topology. This topological architecture is structured with two switching paths which are connected to each other in order to produce a regulated and programmable output voltage. The voltage input of the switching regulator is controlled using two primary components, namely, the input voltage range and the variable reference voltage. The first variable is set and regulated by a potentiometer found at the input, while the second variable is regulated by an integrated programmable voltage reference. The programmable voltage reference (Vref) sets the output voltage of the switching regulator to the specified level.

The LM2679SDX-ADJ also features an integrated high-side power switch and two low-side switches. The high-side power switch allows for adjustable output and load currents. The low-side switches improve the efficiency of the device by allowing for an increased switching frequency. The adjustable low-side switches also enable the device to remain current-limited, which helps to reduce power dissipation by providing current control of the output.

The efficient synchronous architecture of the LM2679SDX-ADJ provides numerous operational parameters that can be set and adjusted. This allows the device’s output voltage to remain stable and efficient over a wide range of temperature ranges. The device can also sense and respond to changes in the load current or output voltage, and can adjust the output voltage accordingly. It also features a configurable toggle rate, which helps to further reduce the output voltage ripple.

In addition to having an environmentally friendly design, the device is further enhanced with an increased level of safety and reliability due to the integrated protection circuits. This includes over-voltage protection, current-limit protection, and thermal protection. Fault conditions are displayed through an on-chip logic state, which helps protect the device from continuous operation in case of an overload. Further protection is provided by the integration of an under-voltage lockout circuitry that monitors the supply voltage, and then restricts the output voltages to remain within the specified limits.

Overall, the LM2679SDX-ADJ is an efficient, cost-effective, and reliable DC-DC converter. It is designed to maintain a stable output voltage and provide an adjustable output current. The integrated circuitry and its synchronous architecture offer a wide variety of adjustable parameters that can be adjusted to suit the user’s design needs. Its environmental and safety features, such as overload protection, also make it an ideal choice for applications in portable electronic devices, such as notebook PCs and smartphones.

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