TL2575HV-15IKV

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TL2575HV-15IKV, one of the DC-DC switching regulators from STMicroelectronics, is a synchronous step-down (buck) Type DC-DC converter that uses constant frequency Pulse-Width Modulation (PWM) to reduce the output voltage. In addition, it also offers a rich set of features designed to make it easy to use in a variety of applications. The device can operate as either a true step-down buck regulator, in which the output voltage is controlled by varying the duty cycle of the PWM signal, or as a fixed-output voltage regulator, in which the output voltage is simply set by a resistive divider from the input voltage.

The TL2575HV-15IKV has an output voltage of 15V, a switching frequency of up to 2.25MHz, and a wide range of adjustable output voltage options. It also features a wide operating temperature range of -40°C to +125°C, low quiescent current, low dropout voltage, the ability to withstand short-circuit conditions, and internal over-temperature and over-current protection. Plus, it is also RoHS-compliant.

The key feature of the TL2575HV-15IKV is its wide input voltage range of 3.3V to 30V that allows it to be used as a power supply for almost any system. Its wide temperature range makes it suitable for a variety of industrial and automotive applications, including motor control, automotive, audio systems, industrial controls, chargers and power supplies, and white goods.

The working principle of the TL2575HV-15IKV is based on a synchronous boost/buck topology utilizing constant frequency PWM. When the input voltage of the device is higher than the output voltage, the device operates in boost mode. When the input voltage is lower than the output voltage, it operates in buck mode. In either case, the power switches of the device are driven by an internal pulse generator adjusted by an external resistor.

The TL2575HV-15IKV uses an internal error amplifier to compare the feedback voltage to an internal reference voltage, and then adjusts the duty cycle of the PWM signal in order to maintain the desired output voltage. The device also has a soft start feature that reduces the inrush current during start-up, which is an important feature for automotive applications.

In summary, the TL2575HV-15IKV is one of the most versatile DC-DC switching regulators available today. Its wide operating range, low quiescent current, and advanced features make it an ideal choice for a wide range of industrial and automotive applications.

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