LM2676SX-12 Integrated Circuits (ICs)

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The LM2676SX-12 is a monolithic integrated high frequency switching regulator designed to be used in a variety of switching regulator applications. It is suitable for a wide input voltage range of 2V to 25V and a wide output current range of 0.6A to more than 30A. The LM2676SX-12 device is ideal for use in mobile telephones, PDAs, portable assistants and any other portable application that requires a regulated output voltage.The LM2676SX-12 operates in a continuous conduction mode and contains all the control and drive circuitry on a single integrated circuit. It consists of an input voltage clamp, pulse width modulator (PWM), output voltage clamp, and power output section. The PWM includes a frequency compensation network, gain compensation network and current limiting protection. The output voltage clamp helps regulate the voltage at the output and the input voltage clamp helps limit the maximum input voltage. The output power section consists of power MOSFET switches that provide power amplification.The LM2676SX-12 can be used to generate a wide variety of output voltages by simply changing the input voltage and feedback resistor. The output voltage can be adjusted by selecting a feedback resistor to set the output voltage. It has a wide operating temperature range of –40°C to +125°C. It also has a high efficiency and a very low standby current of typically 5µA.The LM2676SX-12 is a DC-DC switching regulator that is used in a variety of applications. It can be used to regulate the output voltage of a power supply, to provide voltage regulation for gate drivers and other switching applications, to provide high efficiency buck-boost converters and current sources, and to provide enhanced protection and fault protection functions.The working principle of the LM2676SX-12 is simple and straightforward. When a load is placed on the output, the feedback resistors sense the output voltage. The PWM senses and compares the voltage level of the output voltage. The PWM then drives the power MOSFET switches to maintain the output voltage at the desired level. The PWM also adjusts the duty cycle of the power MOSFET to maintain a consistent output voltage and guarantees a stable output voltage at all times.In conclusion, the LM2676SX-12 is a high frequency switching regulator that is ideal for use in a variety of applications. The device has a wide operating temperature range, a wide input voltage range, a wide output current range, and provides high efficiency and low standby power. Its simple, straightforward operating principle makes it a reliable and cost-effective solution for all types of switching regulator applications.

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