MAX765CPA+

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Today, DC/DC switch regulators have become more popular for power management in mobile and embedded applications; this is due to their unbeatable combination of low quiescent current, high power density and low cost. The MAX765CPA+ is a monolithic high efficiency step-down DC/DC switch regulator, specifically designed for single lithium battery cell applications. The device provides an easy to use and cost-effective way to maximize power performance and optimize power efficiency.

The MAX765CPA+ offers a high efficiency, low quiescent current buck regulator with 0.9V to 5.0V adjustable output voltage. It integrates an adjustable pulse-width modulation (PWM) controller, a regulated low-dropout (LDO) voltage regulator and a power MOSFET with 0.8Ω internal resistance. An on-chip 10µA start-up current sense amplifier and 4.5A internal peak current limit ensure a wide operating range and stable operation. The device is protected against overvoltage and overcurrent conditions, eliminating the need for additional external circuitry. The MAX765CPA+ can be programmed with an external resistor divider for a precise output voltage setting and is also equipped with a shutdown mode for power conservation.

The MAX765CPA+’s primary application field is in mobile and embedded power management, ranging from powering data storage solutions, to powering IoT networks and applications. The device offers high efficiency and low quiescent current, enabling long battery life and easy thermal and power management. It is built with a power MOSFET with 0.8Ω internal resistance, allowing the device to support up to 10A output current with up to 80% efficiency. Additionally, the device is programmable with an external resistor divider to set the output voltage and can be equipped with an on/off control pin, allowing for easy power conservation. The MAX765CPA+ is also fully integrated with a voltage regulator and a current sense amplifier, providing additional protection against overcurrent and undervoltage conditions.

The MAX765CPA+ achieves high efficiency and power conversion performance due to its internal power MOSFET with 0.8Ω internal resistance and its proprietary on-chip pulse-width modulation controller. The PWM controller is designed to reduce power dissipation and ensure a low quiescent current. It monitors the voltage across the internal power MOSFET to ensure maximum efficiency at all times. The device also features dynamic voltage scaling, which allows for a wide range of output voltages with no need for programming. This technology enables the device to optimally adjust its internal gain for maximum performance and efficiency across its desired output range.

The MAX765CPA+ can be used to power various embedded and mobile applications with high efficiency and low quiescent current. It is designed specifically for powering single lithium battery cell applications and can offer up to 80% efficiency and 10A output current with its integrated power MOSFET. The device is programmable with an external resistor divider to set the output voltage and is fully integrated with a voltage regulator and a current sense amplifier for additional protection. The Dynamic Voltage Scaling technology enables the device to optimally adjust its internal gain for maximum performance and efficiency across its desired output range. All in all, the MAX765CPA+ is an ideal solution for power management in various mobile and embedded applications.

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