LM26420YSQX/NOPB Integrated Circuits (ICs)

Series:	--
Packaging:	Tape & Reel (TR)
Part Status:	Active
Function:	Step-Down
Output Configuration:	Positive
Topology:	Buck
Output Type:	Adjustable
Number of Outputs:	2
Voltage - Input (Min):	3V
Voltage - Input (Max):	5.5V
Voltage - Output (Min/Fixed):	0.8V
Voltage - Output (Max):	4.5V
Current - Output:	2A
Frequency - Switching:	550kHz
Synchronous Rectifier:	Yes
Operating Temperature:	-40°C ~ 125°C (TJ)
Mounting Type:	Surface Mount
Package / Case:	16-WQFN Exposed Pad
Supplier Device Package:	16-WQFN (4x4)
Base Part Number:	LM26420

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Introduction

The LM26420YSQX/NOPB is a DC/DC synchronous buck converter from Texas Instruments. It is a versatile power-management circuit with multiple current level options that provides high power density and a wide range of operating frequencies. This device is specifically designed for use with systems that require low power in a small form factor, such as portable consumer electronics, industrial systems, and computer peripherals. The LM26420YSQX/NOPB is especially well-suited to step down voltages in battery-powered applications and can provide up to 14A of continuous current.

Application field

The LM26420YSQX/NOPB is a DC/DC synchronous buck converter that is ideal for battery-powered applications. This device can be used to step down high input voltages to lower output voltages, such as in portable consumer electronics, industrial systems, and computer peripherals. It is especially well-suited for use in battery-powered applications, as it reduces power losses and maximizes efficiency. The device can provide up to 14A of continuous current, making it suitable for higher power applications. The LM26420YSQX/NOPB also includes a wide range of safety features, such as short-circuit protection, thermal over-temperature protection, and under-voltage lockout. This makes it ideal for use in high-reliability and safety-critical designs.

Working Principle

The LM26420YSQX/NOPB is a synchronous buck converter that operates by switching the input voltage at a high frequency and then regulating the output with a low-pass filter. The device is designed to supply a constant output voltage over a wide range of load conditions. The device features multiple current-level options with integrated gate drivers, which allows the circuit to be tailored to the system’s needs. The device also features a wide range of operating frequencies, allowing the designer to choose the most efficient frequency for the system. In addition, the device includes an integrated synchronous rectifier which lowers power losses during switching and maximizes efficiency. The synchronous rectifier also allows for light-load efficiency and ultra-low quiescent current.

Conclusion

The LM26420YSQX/NOPB is a highly efficient DC/DC synchronous buck converter from Texas Instruments. This device is well-suited for battery-powered applications and can deliver up to 14A of continuous current. It features multiple current-level options with integrated gate drivers, allowing it to be tailored to the system’s needs, as well as a wide range of operating frequencies. In addition, the device includes an integrated synchronous rectifier that lowers power losses during switching and maximizes efficiency. With its high power density and wide range of safety features, the LM26420YSQX/NOPB is an ideal solution for a variety of portable and industrial applications.

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