LM3670MFX-1.6/NOPB

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DC-DC switching regulators have become the go-to choice when it comes to regulating the output voltage of power supplies. They provide accurate, stable, and efficient voltage regulation and offer the designer many options to optimize the design. The LM3670MFX-1.6/NOPB is a step-up DC-DC converter with a wide input voltage range, adjustable output voltage, and protected features. It is a compact, low-cost power solution for system power supply applications that require low noise and fast transient response.

The LM3670MFX-1.6/NOPB is a two-phase buck-boost DC-DC converter with a minimum operating voltage of 0.8V, a maximum operating voltage of 5.5V, and a wide output range of 0.9 to 5.5V. It is a non-synchronous buck-boost regulator, which means that switching frequency is fixed and the output voltage can be adjusted by varying the duty cycle of the internal switches. The LM3670MFX-1.6/NOPB is designed to provide a continuous output current of up to 1.6A with an adjustable voltage accuracy of ±10%. It is ideal for applications where high efficiency is desired, such as in battery powered systems, dc-dc converters, and USB power supplies.

The LM3670MFX-1.6/NOPB has an integrated thermal shutdown circuit, over-voltage protection, short-circuit protection, and under-voltage lockout features to provide robust protection against system damage. The under-voltage lockout feature ensures that the output voltage does not drop too low when the input voltage drops below the specified UVLO threshold. The over-voltage protection circuit responds when the output voltage exceeds its maximum set point, and the short-circuit protection prevents the output from attempting to source too much current. The thermal shutdown circuit prevents operation of the LM3670MFX-1.6/NOPB when the die temperature exceeds the specified limit.

Applications of the LM3670MFX-1.6/NOPB include adapter/charger power supplies, portable/battery powered systems, USB power supplies, and high efficiency dc-dc converters. It offers very low quiescent current and is suitable for low power and low noise systems. It is also ideal for driving multiple LEDs, as the soft start feature of the LM3670MFX-1.6/NOPB prevents inrush current. The LM3670MFX-1.6/NOPB is offered in a space-saving 4-pin SOT-23 package and is rated for operation over the temperature range of -40 to 125°C.

The LM3670MFX-1.6/NOPB is an ideal choice for system power supply applications that require low noise and fast transient response, with features such as low quiescent current and protection features to protect the system. It is available in a small 4-pin SOT-23 package and offers a wide input voltage range, adjustable output voltage, and protected features, making it a compact, low-cost solution for many power supply applications.

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