LT1507CN8#PBF Integrated Circuits (ICs)

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The LT1507CN8#PBF is a low-noise, high current, synchronous step-down regulator specifically designed to operate over a wide input voltage and output current range. It is part of Linear Technology’s family of DC-DC switching regulators, and is a great choice for applications that require a low noise, low output voltage, and high-efficiency voltage regulator.

The LT1507CN8#PBF is ideal for applications such as telecom, networking and industrial power systems, vehicular systems, and a variety of consumer and datacom applications. It features a 2A integrated switch capable of delivering up to 2A of output current while maintaining efficiencies of up to 95%. It also features a low output ripple and high PSRR, making it suitable for demanding applications requiring low output noise.

The device also features an adjustable voltage output range from 0.7V to 5.5V and a wide input range of between 1V and 26V, making it suitable for use in a wide range of applications. The input voltage can be higher than the output, allowing the device to step-down the voltage for use in applications where a lower regulated output is required. The device has programmable switching frequency from 200kHz to 1.5MHz and supports synchronous rectification for even higher efficiency. The LT1507CN8#PBF can also be used in single inductor buck applications.

The LT1507CN8#PBF can be used in a wide range of applications, from supplying power to microprocessors, FPGAs, ASICs, and other digital logic circuits to powering mobile devices such as cell phones, tablets, and other handheld devices. Its features make it suitable for use in both heavily loaded and lightly loaded applications due to its low output ripple and noise along with its high output current capability.

In terms of its internal operation, the LT1507CN8#PBF consists of an internal oscillator which provides a stable clock reference for its switching frequency. The oscillator frequency is adjustable using external resistors to set the frequency and can be kept within a range of 200kHz to 1.5MHz. An internal voltage reference provides feedback to the on-board current source which regulates the output voltage from 0.7V to 5.5V. In order to control the output voltage, the voltage reference is compared to the output voltage and this difference is used to enable or disable the internal power switch.

The LT1507CN8#PBF also features low input current transient, decreasing the input inrush current when the power supply is turned on. It also features an under-voltage lockout, which prevents the regulator from operating until the input voltage is at a safe level. In addition, the device features an internal soft-start function, which reduces inrush current during start-up. This feature also ensures that the output voltage remains stable and within spec during temperature variations.

Overall, the LT1507CN8#PBF is a great choice for applications that require a combination of high output current, low output voltage, and low noise in a wide input voltage range. It is suitable for use in heavily loaded and lightly loaded applications and includes features such as output voltage tracking, adjustable switching frequency, and soft start. This makes it suitable for a wide range of applications, from powering digital logic circuits to powering mobile devices.

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