LT1172HVCQ#PBF

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PMSC - Voltage Regulators - DC DC Switching Regulators

LT1172HVCQ#PBF is a DC-DC switching regulator designed for a wide range of application fields ranging from automotive, mobile device battery charging and power management, to industrial control and instrumentation applications. It consists of a high-voltage power stage assembly, a high-side N-channel MOSFET switch, a low-side N-channel MOSFET switch, and a voltage regulator that maintains a tight output voltage range. The power stage can operate with input voltages up to 48V, and the N-channel MOSFET switches are rated up to 70V.

The LT1172HVCQ#PBF uses an input voltage range of 1V to 48V, and an output voltage range of 1.2V to 44V, making it an ideal regulator for high-voltage systems. The switching frequency of the regulator can be programmed up to 1MHz, and the power dissipation is low compared to traditional linear regulators. The efficiency of the regulator is high, allowing for a low power dissipation and allowing for the use of small input and output capacitors.

The working principle of the LT1172HVCQ#PBF can be broken down into four parts. First, the high-voltage power stage assembly takes in the input voltage, and the voltage is regulated by the regulator. After the voltage is regulated, the voltage is further controlled by a PWM signal, which is generated by the internal oscillator of the device. Secondly, the MOSFETs in the power stage are used to regulate the current and voltage to the output. Thirdly, the output filter is used to filter off any unwanted high frequency ripple on the output voltage, ensuring a clean and steady output. Finally, the control and protection circuit provides the necessary protection for the device, ensuring a safe operation and preventing any damage to the device from overvoltage or overcurrent.

The wide input voltage range, low dropout voltage, low output noise, excellent efficiency, and low power dissipation make the LT1172HVCQ#PBF an ideal regulator for high-voltage systems. Its small size and high performance make it an ideal solution for applications such as battery charging and power management, automotive, industrial control and instrumentation, and other high-voltage applications. It is capable of extending battery life and reducing system power loss while providing excellent performance.

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