LM27342SDX/NOPB

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Introduction

The LM27342SDX/NOPB Voltage Regulator from Texas Instruments is a DC-DC synchronous step-down switch mode converter module. It is used as an integrated power management integrated circuit (PMIC) in consumer, industrial and automotive applications. The LM27342SDX/NOPB is capable of regulating input voltage levels as low as 3V and up to 14V through its output, enabling conversion of a wide range of DC power sources like battery, solar cell and AC adapters. At the same time, it provides precise output current control, maintaining an output voltage above normal level even when the input voltage drops below normal. The LM27342SDX/NOPB also provides an efficient and reliable power solution.

Application Field

The LM27342SDX/NOPB from Texas Instruments is a DC-DC switching regulator specifically designed for consumer, industrial and automotive applications. It is suitable for applications such as automotive on-board chargers and solar/ battery power supplies for consumer and industrial use. The LM27342SDX/NOPB is an ideal solution for power systems requiring both high input voltage and low output voltage regulation with high accuracy. Its wide input range of 3 V to 14 V and 1 MHz (typical) switching frequency allows for designing compact power solutions with smaller footprints and lower cost.

Operations Principle

The LM27342SDX/NOPB has an internal voltage regulation loop which compares the output voltage to a fixed reference voltage, and regulates the switching duty cycle in order to maintain a constant output voltage. It is based on a synchronous step-down topology which allows the input power to be converted into a regulated output voltage in a very efficient way. It is capable of regulating input voltage levels as low as 3V and up to 14V through its output, enabling conversion of a wide range of DC power sources.

At the core of the LM27342SDX/NOPB is a dedicated digital control module that regulates the output voltage accuracy across load, temperature, and line variations. It is designed to allow the user to adjust the output voltage and current limits easily, via the control pins, from the external components. It also has an integrated fault protection features such as over-temperature, over-voltage, and under-voltage, to protect the system from abnormal input voltage.

Conclusion

The LM27342SDX/NOPB from Texas Instruments is a DC-DC synchronous step-down switch mode converter module. It is used as an integrated power management integrated circuit (PMIC) in consumer, industrial and automotive applications. The LM27342SDX/NOPB is capable of regulating input voltage levels as low as 3V and up to 14V through its output, enabling conversion of a wide range of DC power sources like battery, solar cell and AC adapters. At the same time, it provides precise output current control, maintaining an output voltage above normal level even when the input voltage drops below normal. The LM27342SDX/NOPB is designed with an internal voltage regulation loop which compares the output voltage to a fixed reference voltage, and regulates the switching duty cycle in order to maintain a constant output voltage. It also has an integrated fault protection features such as over-temperature, over-voltage, and under-voltage, to protect the system from abnormal input voltage.

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