LM27342SD/NOPB

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PMICs are an important component in electrical engineering. One type of PMIC is the Voltage Regulator, which is responsible for managing and regulating voltage to ensure that circuits in a device operate as intended. The DC DC Switching Regulator is one of the most popular Voltage Regulators because of its ability to handle large inputs and outputs, and to offer superior power efficiency and performance. The LM27342SD/NOPB is a perfect example of such a switching regulator and is commonly used in many applications. This article will take a closer look at the LM27342SD/NOPB and its application field as well as its working principle.

LM27342SD/NOPB Application Field

The LM27342SD/NOPB is a dual, high-performance and ultra-small footprint, single-stage dc-dc buck regulator. It takes in an input voltage of up to 4.5V and output voltages of up to 100V, from a 3mm x 3mm package. The wide (6:1) input voltage range and high output voltage levels make it ideal for a large number of applications such as mobile phones, computers, portable media players, automotive, and industrial systems. It also features various high-performance features that help minimize the need for external components, allowing for space and cost savings.

The LM27342SD/NOPB can be used to create LED controllers, chargers, and adapters with outputs up to 3A and input voltages up to 30V. It can also be used to power low-voltage boards like ARM Cortex-M based processor systems and battery-powered medical products. With its high integration level, low quiescent current, and low EMI, the LM27342SD/NOPB makes creating highly efficient and space-saving applications a breeze.

LM27342SD/NOPB Working Principle

The LM27342SD/NOPB is a switching regulator that uses the principle of pulse width modulation (PWM) to regulate its output voltage. When an appropriate voltage level is needed, the device switches on a transistor to divert electrical current around a closed loop. This closed loop circuit consists of a number of capacitors, inductors, and resistors. A ramping reference current is then generated by the device’s internal components and sent to the loop. The current ramps up until it reaches a certain point, at which time the transistor is turned off and the current then begins to decay. The length of time that the transistor is kept on determines the output voltage of the device.

The LM27342SD/NOPB uses its internal current and error amplifiers to provide feedback to the loop and ensure that the output voltage remains within the desired range. In addition, it has a built-in low-noise synchronous oscillator, which helps to reduce electrical noise in the output. A thermal protection circuit also helps to keep the device from overheating.

Conclusion

The LM27342SD/NOPB is a dual, high-performance and ultra-small footprint, single-stage dc-dc buck regulator. It offers a wide input voltage range and high output voltage levels, making it a perfect choice for a number of applications. The device works on the principle of PWM and utilizes internal components to regulate the output voltage level. The LM27342SD/NOPB also offers various features such as a low quiescent current and a low EMI, making it an ideal choice for a number of different applications.

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