TPS62360YZHT

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The TPS62360YZHT is a high efficiency, low quiescent current synchronous step-down converter with an external enable which is designed to deliver adjustable output voltage as low as 0.6V with a high peak efficiency of up to 94%. The device is targeted for battery-powered portable applications such as smartphones, and tablet PCs. TPS62360YZHT offers an integrated overvoltage protection which eliminates external components and optimizes the power saving further.

Introduction to TPS62360YZHT

The TPS62360YZHT is a synchronous step-down converter with an enable input and a wide input voltage range from 2.3 V to 5.5V. This device is ideal for powerful applications needing high output current such as portable electronics, and comes with various operating modes and current limiting protection to prevent over temperature and over-current conditions. Thanks to the embedded synchronous rectification, the efficiency of the device is maximized at 94%.

Application Field of TPS62360YZHT

Due to its wide input voltage range and adjustable output voltage, the TPS62360YZHT is mainly used in portable consumer electronic products such as smartphones, tablets, MP3 players and laptop power supplies. The device also supports automatic disable and enable for start-up into running device and it is optimal for circuit protection in a challenging environment. Furthermore, the embedded overvoltage protection reduces the risk of collateral damage from dangerous overvoltage conditions, particularly in automotive or industrial applications.

Working Principle of TPS62360YZHT

The device is based on synchronous buck topology responsible for buck-mode operation. The voltage source VIN is the direct source of power and it is connected to NMOS during switching cycle. The input voltage is stepped down to the desired level by cascaded blocks like Internal reference, error amplifier and PWM comparators. The voltage regulation is maintained by the Pulse Width Modulation (PWM) control.Moreover, the device is protected against short circuit conditions by the internal current limiting loop which acts like a fuse.

The TPS62360YZHT is designed with an external enable control and an error amplifier. The external enable is an active high digital signal which is used to turn the regulator on and off. The error amplifier is used for controlling the loop compensation. The voltage feedback is generated by the resistive voltage divider and the output voltage is compared with the internal reference voltage. The output voltage is adjustable from 0.6V to the maximum of 4.5V.

Conclusion

The TPS62360YZHT is a high efficiency, low quiescent current synchronous step-down converter with an external enable which is designed to deliver adjustable output voltage as low as 0.6V with a high peak efficiency of up to 94%. The device is used in various electronic products such as portable electronic devices and automotive/industrial applications, due to its wide input voltage range as well as internal overvoltage protection. The built-in Pulse Width Modulation control enables the voltage regulation, while the internal current limiting loop acts as a fuse for protection against short-circuit conditions.

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