LM5010AMHX

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The LM5010AMHX is a versatile synchronous buck regulator from National Semiconductor. It\'s used in a variety of applications, from consumer electronics to space exploration, and is a capable power solution for low power and low voltage requirements.

The key feature of the LM5010AMHX is its ability to generate efficient, low noise and low EMI (electromagnetic interference) power conversion from an input voltage of 8V to 40V to a regulated output voltage of 4.5V to 18V. It features a wide operating frequency range of 200kHz to 1.2MHz, enabling quick transient response and fast load step response. It also integrates a constant on-time current mode control loop with adjustable peak current limit, which provides excellent and accurate line and load regulation characteristics.

The switching regulator also incorporates advanced features like Cycle-by-Cycle Over Current Protection (OCP), Thermal Shutdown (TSD) and Over Voltage Protection (OVP). The LM5010AMHX also includes an integrated MOSFET driver, which reduces losses in the components, thus improving the overall efficiency of the system. Additionally, the device also has numerous enable and output voltage soft-start options.

The LM5010AMHX operates in a basic voltage regulator mode, and the output voltage can be adjusted with the external resistor divider. When the feedback voltage drops below a certain voltage, the output of the regulator will increase to compensate for the lower input voltage. This ensures that the output is stable, even when the input voltage is varying.

The LM5010AMHX also features a unique low quiescent current (IDDQ) mode and has the option to reduce the power supply current from normal operating conditions to just a few µA. This mode can be enabled and disabled with a pin-selectable option and it is a great feature for low power application and battery-powered equipment, as it helps maximize battery life.

Overall, the LM5010AMHX is a high performance, feature-rich synchronous buck regulator designed for a wide variety of applications. With its wide input voltage range, integrated MOSFET driver, current mode control, low quiescent current mode and a variety of enable, output voltage softstart, and protection features, the LM5010AMHX is an excellent choice for a variety of low power, low voltage requirements.

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