TNY267PN

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The TNY267PN is a family of high-efficiency, low-power AC-DC switching converters. This product is a power management integrated circuit (PMIC) ideal for a range of applications including laptops, netbooks, tablets and consumer electronics. The TNY267PN is a member of the TNY 267 family of converters and features a wide input voltage range from 9V to 28V and an adjustable output voltage from 0.9V to 19V. The TNY267PN supports a synchronous rectified buck-boost operation and its low operating current of only 500μA enables light load operations with a very low output ripple.

The TNY267PN is capable of running with high efficiency across a wide range of input and output power levels. The fixed frequency can be externally programmed to generate a pulse width modulation (PWM) for optimum performance up to 90% power efficiency. This product has a wide range of features, such as adjustable output voltage and over current protection, which provide a cost-effective solution for various power management applications.

The TNY267PN utilizes a synchronous rectified buck-boost topology to operate from an universal input source. This PMIC’s low power switching architecture delivers high power conversion efficiency and lower electromagnetic interference (EMI). Compared to other AC-DC converter solutions, the TNY267PN can achieve Overall Efficiency (OE) up to 90% over a wide range of input and output power levels.

The device integrates a PWM generator and a synchronous rectified buck-boost converter on a single chip. The PWM generator produces a high frequency triangle wave which is used by the buck-boost converter to regulate the output voltage in response to changing input and load conditions. The device also has a wide range of protection features like Thermal Shutdown and Over-Temperature Protection with an adjustable current limit protection which helps enhance system reliability.

The TNY267PN is an ideal solution in applications that require a low output voltage but have a wide and universal input voltage, such as notebook adapters and LED drivers. The PWM generator can be programmed over a wide range of frequencies and duty cycles to tailor system performance and noise for any given application. The integration of the PWM generator and the synchronous rectified buck-boost topology make the TNY267PN an excellent choice for applications that need a high power conversion efficiency and low component count.

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