LTC3672BEDC-2

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Linear switching PMICs, like the LTC3672BEDC-2 silicon, have many uses. They are especially useful when dealing with voltage levels that are too sensitive to handle safely and reliably in consumer electronics, such as automotive and medical equipment, consumer audio/video, industrial and test equipment, as well as many other applications. The principle of PMICs switches is to utilize voltage regulators to keep the voltage within a certain range without causing damage to the circuits or devices in use. By doing this, the PMICs can keep the voltage stable even when trying to adjust the input voltage.

The LTC3672BEDC-2 is a dual-barrel, two-stage, integrated synchronous switching regulator designed for high-current step-up applications and medium power requirements. This device features a built-in, micro-step nonlinear controller with voltage and current feedback loops, providing accurate and stable regulation of the output voltage over a wide range of conditions. The micro-step feature enables regulation of the output voltage in fine increments for large changes in input voltage. The device is protected by a variety of features such as overload and over-temperature protection.

The LTC3672BEDC-2 has two power switches, one for higher current applications like battery charging and one for high voltage applications like DC/DC converters. Each switch has integrated control circuitry which optimizes the switch control during high-current demand. The device also has a unique ability to dynamically limit the maximum duty cycle for the two switches, providing improved efficiency and compliance with current regulations. Additionally, the device integrates an adaptive system level loop which enables continuous, accurate regulation of the output voltage, even when connected to an input voltage source with significant AC ripple. This ensures reliable operation over a wide range of input voltage sources.

The LTC3672BEDC-2 also incorporates an adaptive peak current control circuit to provide precision control of the current delivered to the output. This feature reduces power losses and improves overall efficiency. Additionally, the device integrates switch current and output current monitors, enabling precise monitoring of the entire power delivery system.

The device requires a minimum of eight external components, making it a very compact and economical solution for many high-current step-up applications. The LTC3672BEDC-2 also offers a wide range of features to enhance system performance, such as an auto-reset feature for over-temperature protection, thermal shutdown and output OC protection, adjustable current limit, adjustable switching frequency and adjustable soft start. The device also includes an enable pin for system power management.

In summary, the LTC3672BEDC-2 is a high-current, two-stage, synchronous switching regulator designed for high-current step-up applications and medium power requirements. The device features a built-in micro-step nonlinear controller and adaptive system level loop, providing accurate and stable regulation of the output voltage. With its integrated protection features and comprehensive features, the LTC3672BEDC-2 is a powerful, cost-effective solution for many high-current applications.

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