LT1370CT7#PBF

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The LT1370CT7#PBF is a voltage regulator in the DC-DC switching regulator family. It is a monolithic integrated circuit designed to provide an adjustable positive-output voltage of +3 to +40V while operating from inputs of +7.5 to +40V with either a fixed frequency of up to 350kHz or a fixed off-time control scheme.

This regulator is particularly well suited for applications where low noise, high efficiency, and low cost are required. The LT1370CT7#PBF includes current limit, adjustable over-voltage protection (OVP), over-temperature protection (OTP), and short circuit protection (SCP).

The LT1370CT7#PBF can be used in a broad range of applications, including industrial and medical power supplies, automotive electronics, telecom systems, distributed power systems, communications systems, computer peripherals, video equipment and battery charging systems.

The LT1370CT7#PBF\'s core operating principle is based on the control of a semi-fixed duty cycle switch mode converter. Not only is it capable of generating a wide range of output voltage, but it is also able to do so with an adjustable switching frequency and an adjustable off-time control scheme.

Thecore of the LT1370CT7#PBF is the integrated powerelifier, which combines the PWM comparator and the output switch into one monolithic device. The PWM comparator senses the output voltage and compares it to the internal reference voltage of 2.5V. When the output voltage deviates from the 2.5V reference, the output switch is turned on or off accordingly.

The output switch that is used in the LT1370CT7#PBF is an integrated high side power MOSFET. This power MOSFET has a lower on-resistance compared to most switch mode converters and the low gate charge helps to reduce the power dissipation associated with the switching of the power MOSFET.

The LT1370CT7#PBF also features an adjustable switching frequency ranging from 30kHz to 350kHz. This is done through the use of a voltage controlled oscillator (VCO) that is used to generate a triangular waveform. The frequency of the triangular waveform can be adjusted by varying the external feedback voltage.

The LT1370CT7#PBF is also capable of an adjustable off-time control scheme. This is done by varying the power MOSFET\'s off-time via an external resistor and capacitor network. The resistor and capacitor network essentially divides the control voltage sent to the external power MOSFET, resulting in a variable off-time.

In summary, the LT1370CT7#PBF is a DC-DC switching regulator, which is well-suited for applications that require low noise, high efficiency, and low cost. It is designed to provide an adjustable positive-output voltage of +3 to +40V while operating from inputs of +7.5 to +40V. It has built-in features such as current limit, adjustable over-voltage protection (OVP), over-temperature protection (OTP), and short circuit protection (SCP). The LT1370CT7#PBF is capable of operating with a fixed frequency of up to 350kHz, or with an adjustable off-time control scheme. It has very low on-resistance for the power MOSFET switch, resulting in reduced power dissipation. It can be used in a wide variety of applications, including industrial and medical power supplies, automotive electronics, telecom systems, distributed power systems, communications systems, computer peripherals, video equipment and battery charging systems.

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