B-1643L2

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The B-1643L2 is a linear voltage regulator designed to provide a steady and efficient power supply to a range of devices that include both digital and analog components. The B-1643L2 uses an advanced pulse width modulation (PWM) technique to regulate output voltage, delivering power at up to 40 kHz. This regulator offers excellent efficiency, output accuracy and load regulation without produce audible noise. It also has over-voltage, over-current and over-temperature protection.

The B-1643L2 is designed to operate within a wide input voltage range of between 2.5V to 5.5V. This makes it suitable for both a range of AC line input and battery supplies. It has a single voltage output of 3.3 volts and a maximum output current of 1.5A. The nominal output voltage can also be manually adjusted as required.

This regulator is ideal for applications where the supply voltage is prone to fluctuations, such as in automotive environments, and is suitable for use in a wide range of equipment, including medical and robotic technology. It is designed to reduce power dissipation and facilitate a compact, lightweight design with minimal external components.

The B-1643L2 has two primary working principles. The first is the use of a control loop to monitor and accurately regulate the output voltage. This is achieved through a simple, two-stage course-and-fine loop, which uses a Pulse Width Modulation (PWM) technique to achieve the required voltage regulation. The control loop is complemented by over-voltage, over-current and over-temperature protection features.

The second working principle is based on the use of a diode capacitor filter network. The network is designed to suppress electrical noise from external sources and further stabilise the output voltage. The network is essential in automotive applications as it provides additional immunity against vehicle and electrical noise.

The B-1643L2 is an ideal choice for automotive, medical and robotic technologies that require an accurate and reliable power supply. Its low ripple and noise characteristics, wide input range and advanced protection features makes it well-suited to even the most demanding applications. With its small footprint and low power dissipation, it is ideal for use in portable and mobile equipment.

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