LM3676SDX-ADJ

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The LM3676SDX-ADJ is an integrated medium-frequency switching regulator, which is broadly classified as a PMIC, Voltage Regulators and DC DC Switching Regulators. This device is designed as a monolithic integrated circuit that combines all the full functionality for a DC-DC converter with 200KHz operation. The regulator works in the PWM-type (pulse width modulation) and has built-in all of the components essential for an efficient step-down power conversion. It is primarily intended as an adjustable output of buck, as well as a step-up power supply, and is especially suitable for low noise applications, likewise portable electronic products.

The LM3676SDX-ADJ features an adjustable output, which makes the device more flexible and the output voltage can be adjusted from 1.23V to 28V, usually it can reach up to 55V. Furthermore, the device also provides some basic safety features. It can detect over current and over temperature of the output, then it shut down the regulator and provides a warning for the alert. Additionally, the built-in soft start circuit offers users a better control of the current when it steps into the power stage. Furthermore, the chip also has low power consumption features, just take 0.6W typically to deliver a sum of 1A at 12V output.

The working principle of the LM3676SDX-ADJ is relatively simple. The device contains an on-chip PWM (pulse-width modulator) that generates a gate drive or clock signal. This in turn drives an external upper and lower power MOSFET. In buck mode, the MOSFET is fully turned on and turn off alternately according to the clock signal applied by the device. The MOSFETs act like a switch, as they are turned on and off repeatedly, energy can be stored in the inductor and then be transferred to the output capacitor, resulting in the voltage output. The LM3676SDX-ADJ can also work in step-up mode. In this case, the device switches the upper MOSFET and keep the lower MOSFET off. Therefore, the voltage output rate is higher than the input voltage.

The LM3676SDX-ADJ can be used in a variety of applications, including portable electronic products, automotive systems, DMOC applications, and 48V remote bus applications. For portable electronic product, this versatile device can accept input voltages from 3.6V to 28V with a max load of 1A. Additionally, its built-in soft start circuit can actually give users a control of the current when it steps into the power stage. Therefore, the device can provide a safe and reliable power system.

The LM3676SDX-ADJ is an integrated medium-frequency switching regulator, which is broadly classified as a PMIC, Voltage Regulators and DC DC Switching Regulators. This device is designed as a monolithic integrated circuit that combines all the full functionality for a DC-DC converter with 200KHz operation. The regulator works in the PWM-type (pulse width modulation) and has built-in all of the components essential for an efficient step-down power conversion. It is primarily intended as an adjustable output of buck, as well as a step-up power supply, and is especially suitable for low noise applications, likewise portable electronic products. Furthermore, the device features an adjustable output, which makes the device more flexible and the output voltage can be adjusted from 1.23V to 28V, usually it can reach up to 55V. Additionally, the built-in soft start circuit offers users a better control of the current when it steps into the power stage. Furthermore, the chip also has low power consumption features, just take 0.6W typically to deliver a sum of 1A at 12V output. Furthermore, the LM3676SDX-ADJ can be used in a variety of applications, including portable electronic products, automotive systems, DMOC applications, and 48V remote bus applications. Therefore, the device can provide a safe and reliable power system.

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