LMR62421XMFE/NOPB

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The LMR62421XMFE/NOPB is a voltage regulator in the Texas Instruments series of DC-DC switching regulators. It is a small, low-noise, stressed inductor, Step-Down Voltage Regulator, with a wide input voltage range, low operating current, fast transient response, and low ripple. The device is designed to provide consistent conversion from a specified input voltage range to a regulated output voltage with excellent line and load regulation. The output voltage is adjustable versus a feedback voltage and current with an external resistor divider. The device also features overcurrent, overvoltage, and over temperature protection and an adjustable Soft-Start function to limit the inrush current and prevent supply voltages from drooping.

The LMR62421XMFE/NOPB electrical characteristics consist of a rated input voltage range of 5.8 V to 35 V, a regulated output voltage range of 0.8 V to 3.3 V, a maximum output current of 2.6 A, switching frequency of 2 MHz, a minimum output voltage ripple of 75 mV, and a maximum efficiency of 91%. The device supports a wide range of industrial, automotive, and consumer applications, and is a suitable choice for power-hungry applications.

The LMR62421XMFE/NOPB feature an internal highside and lowside switching, which eliminates the requirement for an external diode for typical applications. The device includes an adjustable soft-start that limits the inrush current during initial start-up, eliminating slow supply voltage droop. The device also features overcurrent protection and overvoltage protection, as well as a thermal shutdown function that disables the device if the die temperature exceeds its maximum operating temperature. It also includes an enable pin, which makes it possible to turn the device on and off without having to cycle the power. The device also features a precision reference voltage reference of 0.8V, which provides an accurate feedback voltage to optimize regulation performance.

In addition to its electrical characteristics, the LMR62421XMFE/NOPB is available in a Pb-free, Halogen-free, 5mm x 4mm, TDFN package with an exposed bottom pad. The device is also available in a 5mm x 5mm, TDFN package with an exposed top pad. This package size and pad configuration allow the device to be mounted on a wide range of board design allow low-noise circuit operation and enabling excellent thermal performance.

The LMR62421XMFE/NOPB is an ideal choice for a variety of power applications in industrial, automotive, and consumer products. It features low operating current, fast transient response, and low ripple for consistent conversion from specified input voltage range to regulated output voltage with excellent line and load regulation. It includes integrated protection and adjustable soft-start, making it a reliable and efficient option for step-down voltage regulator applications.

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