LT1763MPDE#TRPBF

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The LT1763MPDE#TRPBF is a low dropout (LDO), linear voltage regulator specifically designed for automotive applications. It is a 3-terminal device which operates over a wide input voltage range of 4.5V to 40V. It offers excellent regulation accuracy combined with low dropout voltage, high current capability and programmable current limit. The LDO also features an internal thermal shutdown circuitry, over-voltage protection and short circuit current limit. The LT1763MPDE#TRPBF offers excellent transient response, fast settling time and high power dissipation.

Application Field

The LT1763MPDE#TRPBF is specifically designed for automotive applications, including power supplies for vehicle entertainment, audio and navigation systems, as well as engine control systems, instrumentation and outside controls. The unit is ideally suited for high noise and power supply switchover immunity applications that require an accurate and reliable supply voltage. The LT1763MPDE#TRPBF can also be used in other non-automotive applications requiring low dropout/high current/wide input voltage range capability.

Working Principle

The LT1763MPDE#TRPBF works on the principle of linear voltage regulation, that is, the output voltage is compared with a reference voltage. If the output voltage drops or increases the output of the LDO is regulated accordingly by controlling the current supplied to the load connected to it. The LDO draws a small amount of current from the input voltage source and regulates it to give a steady output voltage. The output regulated voltage is achieved by varying the current through the resistive elements in the series connection of the LDO.

The LT1763MPDE#TRPBF comes with an on-board Temperature Sensing Unit (TSU). This ensures that temperature related supply voltage fluctuations are suppressed, thus promoting circuit robustness and accuracy. The device also features a built-in low pass filter which helps to smooth the ripple and noise on the input voltage and reduce output noise. The LT1763MPDE#TRPBF has a maximum output current rating of 1.3A and an accuracy rating of 7mV, making it suitable for a wide range of automotive applications.

Conclusion

In conclusion, the LT1763MPDE#TRPBF is a versatile, low-dropout linear voltage regulator specifically designed for automotive applications. It is ideal for applications that require high noise immunity and power supply switchover immunity. The device features wide input voltage range, programmable current limit, an internal thermal shutdown circuitry and an on-board TSU which ensures temperature related supply voltage fluctuations are suppressed. The LT1763MPDE#TRPBF is capable of delivering an output current of up to 1.3 Amp with an accuracy of 7mV, making it suitable for a wide range of applications.

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