LM26480QSQX-8D/NOPB

Series:	*
Packaging:	Tape & Reel (TR)
Part Status:	Active
Mounting Type:	Surface Mount
Package / Case:	24-WFQFN Exposed Pad
Supplier Device Package:	24-WQFN (4x4)

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LM26480QSQX-8D/NOPB Application Field and Working Principle

The LM26480QSQX-8D/NOPB is a highly integrated power management IC from National Semiconductor. It is a member of their Simple Switcher 1500 family and is ideal for use in smart charger applications, providing power, voltage and current regulation for devices such as mobile phones and portable electronics. This device is capable of providing up to 1.5A of continuous output current and features low power consumption, high accuracy, and high efficiency.This device is based around a charge pump architecture and utilizes a step-down converter to regulate output voltage. The input voltage range of the device is between 2.7V and 6V. The output voltage is adjustable from 0.6V up to the input voltage, in increments of 0.1V. The device also offers over-current protection and short-circuit protection.

Working Principle

The working principle of the LM26480QSQX-8D/NOPB is based around a charge pump architecture. This device consists of two complementary high-side and low-side power MOSFETs, as well as a buck converter. The MOSFETs assist in regulating the output voltage.When the device is in operation, the gate signals of the MOSFETs are combined to generate a voltage across the CTL pin and the CS pin. The voltage is then rectified by the charge pump, which increases the current through the device. This in turn drives the gate signals of the MOSFETs, which regulates the output voltage to the desired level.The output voltage is adjustable via the ENBL pin, which is connected to the external CTL circuit. The ENBL pin can be programmed to provide a range of output voltages, from 0.6V up to the input voltage, in increments of 0.1V. This is done by controlling the gate voltages of the power MOSFETs.

Applications

The LM26480QSQX-8D/NOPB is a highly integrated PMIC, providing up to 1.5A of continuous output current. It is suitable for a wide range of applications, such as battery chargers, portable electronics, and other smart charger applications.The device offers a wide input voltage range of 2.7V to 6V and the output voltage is adjustable from 0.6V up to the input voltage, in increments of 0.1V. This makes it ideal for applications where a wide range of output voltages is needed.The device also features low quiescent current, fast turn-on/turn-off response times, and high efficiency. The built-in over-current and short-circuit protection make it ideal for reliable operation in harsh environments.The LM26480QSQX-8D/NOPB is an ideal choice for a wide range of power management applications. Its highly integrated design, flexibility and reliability make it an excellent choice for a wide range of applications, from battery chargers to portable electronics.

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