LTC1983ES6-5#TRMPBF

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LTC1983ES6-5#TRMPBF is a Dual Output Adjustable Step-Down Switching Regulator designed for high-voltage circuit applications. It combines high-efficiency operation and low-noise performance with adjustable output voltage as low as 0.8V. The device features a master/slave operation input, which allows two parts to operate as one, keeping each output voltage locked in relation to the other. This provides a low-output voltage differential within 1% when operating with two parts.

Application Field

The LTC1983ES6-5#TRMPBF is ideal for a wide range of applications including medical devices, computer, digital imaging and networking systems, and automotive applications. The wide input voltage range of up to 100V and the high peak output current at up to 5A makes it suitable for powering CPU, graphic and GPU cores, FPGA and ASICs, high-end audio, and networking processors.

The LTC1983ES6-5#TRMPBF includes a suite of protection features such as under-voltage and over-current protection, thermal shutdown, and adjustable soft-start enabling protected and reliable operation in the high voltage applications. The device also features output voltage tracking, accurate output voltage level and short-circuit and over-temperature protection.

Working Principle

The LTC1983ES6-5#TRMPBF utilizes a standard buck converter architecture that circulates current from input to output via an inductor in switchable mode. It operates as a constant frequency regulator with an adaptive on-time control which compensates for the output voltage change due to the changing switch on-time and compensates for the line and load variations. This helps to maintain regulation when the load and line conditions change.

The device features input voltage range up to 100V, allowing operation even in scenarios of frequent voltage and current fluctuations. The switching frequency of the LTC1983ES6-5#TRMPBF is fixed at 1.2 MHz, enabling higher efficiency and reducing external component count. The operating temperature range of -40°C to +125°C is suitable for most industrial and automotive applications, enabling reliable performance at all times.

The LTC1983ES6-5#TRMPBF comes with an adjustable output voltage enabling the user to set the output voltage according to their requirements. The control loop of the device is fully integrated, eliminating the need for external loop compensation network and enabling easy integration of the regulator into a customer\'s system, and reducing total system cost.

The power GATE pin of the device enables the user to control the device\'s power supply. The power GATE pin has a high feed-forward logic level for compatibility with high voltage systems, enabling the user to control the output voltage state even when the input is at its highest level.

In summary, the LTC1983ES6-5#TRMPBF is an adjustable dual output buck regulator designed for high-voltage applications. The device offers a wide input voltage range with high-efficiency, low noise, adjustable output voltage, and various protection features, making it suitable for many industrial, automotive, and communications applications. The integrated control loop and power GATE pin also improve the user\'s experience and reduce system cost.

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