LT1763CDE#PBF

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The LT1763CDE#PBF is a high-performance, micropower step-down switching regulator with ultra-low dropout capability. Its broad range of features make it suitable for a wide variety of power management applications. This article will discuss the application field and working principle of the LT1763CDE#PBF.

The LT1763CDE#PBF is a low-voltage regulator that can be used to regulate the voltage from an input voltage range of 3V to 24V down to an adjustable output voltage range of 0.8V to 19V. The device is capable of supplying up to 1A of output current, making it suitable for applications such as battery-powered systems and point-of-load applications. It features a low dropout voltage of 75mV at 1A and can provide very high efficiency with its high-speed PFM control architecture.

Application Field:

The LT1763CDE#PBF is an ideal device for portable applications that require low quiescent current and high efficiency. It can be used in a variety of applications, including mobile phones, laptops, and other battery-powered systems. It can also be used in point-of-load applications, such as power supplies, LED drivers, and automotive circuits.

Working Principle:

The LT1763CDE#PBF is an easy-to-use, high-performance linear regulator that uses an ultra-low dropout voltage to maintain stable output voltage regulation. It is based on a 800kHz PWM control architecture which enables high-efficiency and fast load transient response. It features an input voltage range of 3V to 24V and an adjustable output voltage range of 0.8V to 19V. It also features an internal compensation network, thermal shutdown protection, and under-voltage lockout.

The device utilizes a high-gain, wide-bandwidth voltage feedback amplifier to regulate the output voltage. When the output voltage is high, the voltage feedback amplifier drives the output voltage down. This forces current to flow through the pass transistor, reducing the output voltage. The dropout voltage of the device is determined by the internal resistance of the pass transistor and the gate-to-source voltage.At the same time, the current-limit circuitry is activated to protect the device from overcurrent conditions.

The LT1763CDE#PBF also features a wide range of output voltage adjust features, including a soft-start circuit to prevent inrush currents at startup. The device can be easily configured for different applications, such as low-noise, low-voltage operation, or high-current applications.

Conclusion

The LT1763CDE#PBF is an advanced micropower step-down switching regulator. It is designed for a broad range of applications requiring excellent efficiency and low quiescent current. It can be easily configured to suit a variety of power management applications, making it an ideal choice for portable and battery-powered systems.

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