TOP267VG

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TOP267VG is a high active voltage gain converter which is widely used in PMIC - AC DC converters and offline switchers applications. It is a family of devices with different ratings and parameters that provide high power conversion efficiency. TOP267VG is a monolithic integrated circuit and it also comes with a short circuit protection, which helps to prevent damage of system components.

The main purpose of using TOP267VG is to reduce the wasted energy due to heating. By using this converter, power output is increased and the waste of energy is minimized. The converter offers low switching losses and the output is stable.

The TOP267VG power converter works on a flyback topology, which is a voltage gain converter. The flyback topology is a switch mode converter in which the energy stored in a magnetic field of a transformer is used to boost the step-up voltage regulation. The flyback topology is chosen for its ability to generate a circulating current which helps to reduce the no-load losses and improve efficiency.

The primary side of the transformer is driven by the switching control IC that is designed for Buck, Boost and Buck-boost applications. The output voltage of this IC is determined by the value of the reference voltage, which is adjusted by the feedback voltage from the secondary side of the transformer. This voltage is then converted to the required output voltage.

The switching controller is designed for a wide input range, which allows the TOP267VG to operate in various applications. It has high withstand voltage, a good load current capability and high switching frequency. In addition, it has a wide selection of protection features including current limiting, overvoltage protection, over temperature protection and overcurrent protection.

The TOP267VG is also equipped with a PFM (Pulse-frequency Modulation) control system which is used to reduce power consumption when the load changes. The PFM system senses the load and adjusts the frequency and duration of the switching cycle so that the power consumption is minimized.

The TOP267VG has a high-performance switching frequency of up to1MHz which further increases power efficiency. The power conversion efficiency can reach up to 98%. In addition, the TOP267VG provides a decent power density of up to 5W/cm2 which is helpful to reduce the size of the circuit.

In short, the TOP267VG is a high-performance, low power, cost-effective voltage gain converter which is suitable for PMIC-ACDC converters and offline switchers applications. It offers high power conversion efficiency, low switching losses, high-performance switching frequency, good load current capability and protection features. It also has a high-performance PFM control system to reduce power consumption.

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