LM2787BPX

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The LM2787BPX is a highly efficient integrated circuit designed to provide voltage regulation feedback control for applications such as battery powered digital devices and other power conditioning systems. This device is capable of reducing input voltage noise and ripple, while avoiding the need for complex, external regulation components.

The LM2787BPX is categorized as a DC-DC switching regulator or PMIC (power management integrated circuit). This product provides simple and easy to use voltage regulation feedback control in a single package, reducing the number of components normally required to create a working power supply system. It also allows for efficient, cost effective voltage regulation and power conversion in high power applications such as servers and other large power appliances, as well as more cost-sensitive lower power applications, such as battery powered portable device.

The LM2787BPX voltage regulator chip offers high efficiency and low ripple for precision control of the output voltage. The device also offers a wide input voltage range of 4.6V-24V and delivers adjustable output currents up to 1.25A. It is also capable of limited operation from -40°C to +85°C and its input-output differential can go up to 3.2V (offline applications).

The LM2787BPX’s working principle involves a feedback control loop which monitors the output voltage to maintain its preset level. The input signal is converted to an output voltage using a high-side MOSFET pass transistor. The voltage is then controlled by an internal feedback loop circuit which compares the output voltage with the internal reference voltage. Once the errors between the two signals are entered into the feedback loop, it adjusts the switching duty cycle of the pass transistor switch to the voltage level set by the reference. This process continues to regulate the output voltage.

The LM2787BPX is ideal for use in applications such as DC-DC converter modules, power supply systems, electronic device charging/powering, standby power/power conditioning/bulk power/load switching, battery-powered devices, and portable instrumentation. These and other applications benefit from an efficient and low-cost solution, with the LM2787BPX providing the improvements needed to save space and costs.

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