LM140LAH-5.0

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The LM140LAH-5.0 is a high current voltage regulator which belongs to the PMIC (Power Management IC) family of linear voltage regulators. It is designed to provide a precise and stable 5V stabilized output voltage while employing a low dropout voltage regulator topology and low quiescent current (Iq). This makes it suitable for a wide range of applications such as embedded systems, industrial control systems, servers, automotive systems and personal computers.

The LM140LAH-5.0 is available in an SO-8 package with improved EMI performance. It is designed for use in space-constrained environments and offers temperature-compensated regulation. It also features a wide input voltage range from 1.2V to 15V, an adjustable output voltage from 0.82V to 10V, an output current of up to 1A and an integrated switch-mode power control circuit. In addition, it has a very low supply current of only 500nA, making it perfect for applications requiring minimal power consumption.

The LM140LAH-5.0 is based on a buck topology, also known as a step-down regulator, which reduces the input voltage to a lower output voltage. It consists of two main components: the internal power MOSFET and the feedback control circuit. The power MOSFET is responsible for the switching, while the feedback control circuit provides the necessary voltage sensing and feedback to maintain the output voltage within certain parameters. The feedback control circuit is comprised of a bandgap reference, error amplifier, a compensation network, an enable control circuit and a power MOSFET gate driver. The error amplifier monitors the voltage across the sense resistor and compares that voltage to the reference voltage. It then adjusts the duty cycle of the switch so that the output voltage is maintained. It also contains a built-in power MOSFET gate driver which is used to control the switching of the power MOSFET.

The LM140LAH-5.0 is well-suited for applications where low noise, low dropout voltages, stable voltage outputs and low quiescent current are necessary. It is also well suited for applications requiring adjustable voltage and current levels, such as LED lighting, LED displays, and low-power devices. In addition, the LM140LAH-5.0 is also suited for battery-based applications, thanks to its low quiescent current. This makes it an attractive choice for manufacturers looking to reduce power consumption.

In summary, the LM140LAH-5.0 is a high-powered voltage regulator offering precise and stable 5V stabilized output voltage with a low dropout voltage regulator topology and low quiescent current. It is well-suited for applications where low noise, low dropout voltages, stable voltage outputs and low quiescent current are necessary. It is also an ideal solution for battery-based applications, thanks to its low quiescent current and adjustable voltage and current levels. Furthermore, it offers enhanced EMI performance, temperature-compensated regulation, an adjustable output voltage from 0.82V to 10V, and an output current of up to 1A. This makes the LM140LAH-5.0 a highly attractive choice for the design and production of a wide range of electronic equipment, from embedded systems and industrial control systems to automotive systems and personal computers.

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