LM2576T-5.0/LF03

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LM2576T-5.0/LF03 is a DC-DC switching regulator, which is used for producing a regulated output voltage from an input voltage of 5.0V. This regulator is typically used for low power applications such as audio amplifiers, battery charging applications and digital signal processor (DSP) applications. It is available in a low profile, space-saving 0.6"x0.6" footprint.

The LM2576T-5.0/LF03 is a high performance voltage regulator with a wide input voltage range (4.4V to 40V) and a wide output voltage range (1.23V to 41V). It has excellent efficiency (up to 93%), low dropout voltage (25mV @ maximum load current), low quiescent current (8mA typical), and fast transient response. It has adjustable output voltage range with only two external resistors, and an adjustable 500kHz switching frequency (on-the-fly). The DC-DC switching regulator is available in 8-pin PDIP or 8-pin SOP packages.

The operation of the LM2576T-5.0/LF03 is based on the principle of push-pull operating mode. It uses two transistors in a half-bridge configuration and two capacitors, one at the input and one at the output, to store charge. The transistors control the switching action correctly and the two capacitors form a voltage divider which provides voltage regulation. The capacitor at the input is used for short circuit protection and for regulating transient response. The output capacitor is used for filtering the output of the regulator and for providing a stable output voltage.

The LM2576T-5.0/LF03 can be used in a variety of applications such as power supply design, automotive electronics, point of load (PoL) applications, audio amplifiers, test and measurement equipment, and battery chargers. It is also suitable for portable and mobile applications due to its low quiescent current and excellent efficiency.

In conclusion, the LM2576T-5.0/LF03 is a high performance voltage regulator suitable for low power applications. With its wide input and output voltage ranges, its adjustable output voltage, high efficiency and low quiescent current, it is an ideal choice for a variety of applications.

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