LM2576D2TR4-012G

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The LM2576D2TR4-012G is a monolithic integrated circuit that is widely used in voltage regulating designs and applications. It belongs to the family of DC to DC Switching Regulators and its main application field is in portable electronics and devices. This type of voltage regulator has been developed to be easily integrated with both microcontrollers and logic devices.

The LM2576D2TR4-012G is a high-efficiency, 5-15V input, 0.7A step-down, low-power voltage regulator that offers a variety of features such as an adjustable output voltage, high switching frequency, low-noise output voltage, low quiescent current operation, programmable soft-start current limit, power-down operation, as well as current-mode control architecture.

The voltage regulator works by accepting an input voltage in the 5V to 15V range and then converting it to the required safer output voltage. This is achieved using two stages: a control stage and a power stage. In the control stage, the regulator is protected from any input voltage transients or spikes using two high-speed transistors and a protected internal high-current path. The output voltage is regulated using a DC-to-DC converter that features current-mode control and can operate at up to a switching frequency of 500KHz. The power stage operates by converting the controller output signal into an efficient switch-mode power supply.

The output voltage is adjustable within a range of 0.9V to 15V, and the output current is limited to 0.7A. The LM2576D2TR4-012G also has a programmable soft-start and power-down feature that can be used to sequence power-up/power-down sequences in products with multiple power supplies. Additionally, the regulator offers a low noise output, which is essential for sensitive electronic designs and applications.

Overall, the LM2576D2TR4-012G is an efficient, low-cost and easy-to-integrate voltage regulator offering a solution for most portable electronics and logic designs. Offering features that are rare in other voltage regulators, such as programmable soft-start and power-down, the LM2576D2TR4-012G also provides a reliable and highly efficient solution for DC-to-DC conversion.

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