SP6641BEK-L-3-3/TR

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SP6641BEK-L-3-3/TR is a step-down,charge pump voltage regulator, ideal for applications requiring 3.3V and other regulated voltages in a small footprint.

The SP6641BEK-L-3-3/TR is a highly efficient and reliable voltage regulator designed to convert a 3.3V input voltage to a regulated 3.3V output voltage. The main features of the SP6641BEK-L-3-3/TR include a high power efficiency of up to 90%; adjustable input voltage range of 2.35V to 5V; and output voltage accuracy of ±1%.

The SP6641BEK-L-3-3/TR is designed to operate with a maximum of 500mA output current, making it an ideal choice for powering small and medium sized electronic systems. In addition, the SP6641BEK-L-3-3/TR is designed to have low quiescent current of 1.5 µA, ensuring that power consumption is kept to a minimum. The adjustable output voltage is also well suited for applications that require a variety of output voltages. The device also includes a thermal protection circuit which will protect the chip from over-temperature conditions.

Application Field

The SP6641BEK-L-3-3/TR is primarily intended for powering a variety of small to medium sized electronic systems, such as those found in portable devices, wearable electronics, medical equipment, and other consumer electronics. Additionally, due to its small size and high efficiency, the SP6641BEK-L-3-3/TR is also suitable for applications requiring high efficiency in a compact form factor.

Working Principle

The SP6641BEK-L-3-3/TR is a charge pump voltage regulator that works on a switched mode topology. It consists of two N-Channel and two P-Channel MOSFETs in a bridge configuration, along with a capacitance multiplier circuit and a compensation network for stability. The input voltage is converted to a higher or lower voltage level depending on the charge pump ratio and the input voltage level. This technique enables a high voltage gain and low quiescent current.

As the voltage is regulated to the desired level, the switch controlling the input MOSFET is set to be in a closed state, allowing current to flow from the input to the output. The output voltage is then regulated to the desired voltage level by controlling the duty cycle of the clock. As the output voltage stabilizes, the feedback circuit is used to continuously monitor the output voltage and adjust the duty cycle of the clock to maintain the desired output voltage.

The SP6641BEK-L-3-3/TR implements a number of features to improve efficiency, reduce power consumption, and ensure reliable and consistent operation. These include a synchronous rectification circuit to reduce power losses, an adaptive voltage scaling circuit to reduce noise and

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