SP6648ER-L/TR

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SP6648ER-L/TR is a high performance, low-cost buck voltage regulator. It has a wide range of input voltage from 3V to 20V and provides an output voltage from 0.8V to 19.2V. The device offers excellent line and load regulation, high efficiency, and low on-resistance. Moreover, it provides programmable soft-start, over-voltage protection, and under-voltage lock out. In addition, the device comes with an internal slope compensation, which allows for better load transient performance.

Application field

SP6648ER-L/TR provides a low noise and cost-effective solution for many applications. It is suitable for personal computer, server, set top box and smart phone and so on. It can be used to provide single output power supplies, as well as multiple outputs. Moreover, the device can be used in applications such as charging, regulated power supply, voltage conversion and constant current power supply.

Working principle

SP6648ER-L/TR employs a synchronous buck converter to achieve a wide input voltage range and high efficiency. The construction of the device consists of an input regulation stage, a current sense comparator, an oscillator, a power switching stage, and an output regulation stage. The input regulation stage regulates the input voltage to a constant voltage, which is then used to provide a constant voltage to the power switching stage. The power switching stage incorporates an integrated MOSFET and is controlled by an oscillator. The oscillator determines the pulse width of the power switched in order to convert the input voltage to the required output voltage. The current sense comparator senses the current across the switching element, and the output regulation stage regulates the output voltage to the desired level.

In addition, SP6648ER-L/TR provides several protection features such as overload protection, over-voltage protection, and under-voltage lock out for better protection and stability of the system. In addition, the device also provides temperature compensated current limit protection and cycle-by-cycle current limit protection for additional safety. Moreover, the device comes with programmable soft-start and over-current limit limit protection for better system protection.

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