LT3501EFE#PBF

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LT3501EFE#PBF is an integrated switching regulator available in a compact 2 mm × 2 mm packaging. It is part of the PMIC - Voltage Regulators - DC DC Switching Regulators category and offers both synchronous boost and buck outputs. Its wide operating range allows it to handle different applications, including power adapters, battery management, and portable systems. The regulator has an adjustable switching frequency of up to 2MHz and can reduce external parts count, thus reducing design complexity and size.

Application Field

LT3501EFE#PBF is suitable for a wide range of applications, from low-power battery-operated applications to high-power adapters and medical instruments. Its wide operating voltage range, low power loss, and high efficiency benefit a broad range of applications. Moreover, its integration of a low on-resistance PNMOS switch can help deliver miniaturized solutions.

Notable Features

LT3501EFE#PBF provides capabilities to boost or buck the output voltage with a wide operating voltage input range of 2.3V - 5.5V. It has an adjustable switching frequency of up to 2MHz, and features a low output voltage ripple. Additionally, it also offers over-voltage protection, short-circuit protection, and thermal shutdown protection.

Working Principle

LT3501EFE#PBF is powered by a synchronous boost and buck regulator. When the input voltage is below the voltage needed by the load, the internal PNP transistor is turned on, allowing energy stored in the input capacitors to be transferred to the output capacitors. When the input voltage is higher than the output voltage, the internal PNMOS transistor is turned on, allowing energy stored in the input capacitors to be transferred to the load. When the input voltage approaches the output voltage, the internal PNP and PNMOS transistors are turned off, allowing energy stored in the output capacitors to be transferred to the load.

Advantages

LT3501EFE#PBF provides numerous advantages to its users, including minimal external components, lower power loss, and higher efficiency. Additionally, it can handle wide input voltage and current ranges, making it suitable for a wide range of applications. Other advantages include short-circuit protection, over-voltage protection, and thermal shutdown protection.

Conclusion

LT3501EFE#PBF is a highly integrated DC DC switching regulator applicable to many demanding applications. It integrates a low on-resistance PNMOS switch to help reduce overall solution size and offers low power losses and high efficiency. It providing wide operating voltage input ranges, adjustable switching frequencies, and several protection features makes it suitable for a variety of applications.

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