TPS62624YFFT

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TPS62624YFFT application field and working principle

The TPS62624YFFT is a high-performance, ultra-low-voltage, wide range output voltage, DC/DC step-down switching regulator with a frequency of 1.2 MHz designed for DC-DC regulation and battery support applications. The device is optimized for minimal on-chip inductor size and power dissipation, while delivering up to 100 mA of load current.

TPS62624YFFT is a DC/DC switching regulator applied in various PMIC (power management IC) circuits. It is a voltage regulator that accurately and quickly transfers a higher input voltage to a lower output voltage, and keeps the output voltage constant even when the load current changes. DC/DC switching regulators have higher efficiency and smaller size due to their design and switching technology. TPS62624YFFT is a special type of DC/DC switching regulator with wide input voltage range and adjustable output voltage, which amplifies its application in battery support and DC-DC regulation.

Working Principle

TPS62624YFFT consists of a voltage reference, error amplifier, control logic, power switch and an inductor-capacitor network. The output voltage is determined by the feedback from the output. The device operates by switching asynchronously between two states, the ON state and the OFF state. The ON state transfers energy from the input voltage source to the inductor, and the OFF state stores the energy in the inductor and the output capacitor.

In the ON state, the switch is open, allowing the inductor to store energy while the voltage on the output capacitor is maintained. The rate at which energy is transferred to the inductor is proportional to the frequency, which is set by the input voltage and the internal frequency compensation circuit. When the energy stored in the inductor is sufficient to supply the load, the switch is opened and the stored energy is transferred to the output capacitor, maintaining the output voltage.

During the OFF state, the output is supplied from the output capacitor. This state is required for the regulator to maintain the output voltage. The pulse width of the OFF state is determined by adjusting an internal clock. The longer the OFF state is, the lower the output voltage will be and vice-versa.

Application Field

Due to its wide input voltage range and adjustable output voltage setting, TPS62624YFFT is widely used in portable devices, such as cell phones and PDAs, as well as automotive, medical and industrial applications. The device is also suitable for ultra-low voltage applications, and can be used in battery-supported applications.

The device can be used in analog and digital circuits to regulate voltages in power systems, create power supply units and control loads. The device is also used in DC-DC regulation systems to deliver semiconductor components with the power they need to operate. It\'s commonly used in Li-ion battery chargers, battery powered portable devices, solar powered products and automotive systems.

The TPS62624YFFT also provides protection features such as over-voltage protection, over-current protection, over-temperature protection and short-circuit protection, enhancing the performance and reliability of the power supplies.

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