TA78L10F(TE12L,F)

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Power Management Integrated Circuits (PMICs) are widely used in many devices. In the voltage regulator category of PMICs, linear regulators are widely used where a low cost and low complexity are primary design requirements. TA78L10F (TE12L, F) applications and working principles represent the fundamentals of linear voltage regulators. The TA78L10F (TE12L,F) application is classified as an adjustable three-terminal linear regulator. It is most commonly used in portable (mobile) devices where efficient power conversion, regulation and protection are key requirements. The TA78L10F is a relatively small device with a single power-saving die and low standby power requirements, making it an ideal choice for battery-powered applications in the field. The device uses post-regulation circuitry to provide excellent protection against short-circuit and over-voltage conditions.The max output current of the TA78L10F is 1A, with an input voltage range from 11V to 24V. The device has a wide range of output voltage flexibility and offers programmable output voltages from 2V to 10V. Furthermore, it can be used to provide over-temperature protection. The working principle of the TA78L10F is based on a linear regulator’s control of a pass element. The control element must precisely control the input voltage to ensure the output voltage remains constant. The basic operation works as follows. The input voltage is compared to the targeted output voltage by the external feedback network, which then generates an error voltage that is amplified by the regulator’s internal error amplifier. The error amplifier further amplifies the error voltage and sends it to the pass-element controller, which determines the required drive to the pass element (transistor). In the case of the TA78L10F, the pass element is a power MOSFET. The current output is then regulated by the controller, which adjusts the pass element’s conductance and maintains secure control of the output voltage.Several additional components, such as current limit and thermal shut down, are included in the device’s circuitry. The TA78L10F also includes an adjustable soft-start feature, which is used to minimize in-rush current on startup. This is important to avoid overloading of the input power supply, especially when dealing with large capacitive loads. The TA78L10F linear regulator offers high stability and accuracy as well as safety features to maintain a secure output voltage. It is designed for use in applications where efficient and accurate power regulation and protection are required, and where portability, cost and space are at a premium.

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