MAX1796EUA+T

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MAX1796EUA+T ICs are voltage regulators that are part of the DC DC switching regulator category in the PMIC (Power Management Integrated Circuit) family. It performs a wide range of output-voltage regulation functions and provides a variety of power management solutions.

Application Fields

MAX1796EUA+T is designed for portable applications that require low-noise switching operation. This integrated circuit is suitable for a range of applications, such as notebooks, subnotebook PCs, portable storage devices, Bluetooth headsets, cellphone chargers, PDAs and handheld gaming devices.

It also features low ripple, low theoretical EMI, high levels of integration, and a low-power-loss synchronous rectifier. This voltage regulator has an adjustable switching frequency from 150kHz to 1.5MHz, output current-limit protection, and frequency foldback when under heavy load. It is also capable of operating in pulse-skipping, low-dropout (LDO) mode. The device is offered in a 14-pin TSSOP package.

Working Principle

The MAX1796EUA+T is a highly integrated DC-DC switching regulator with an internal synchronous rectifier capable of a wide output-voltage range. It can operate in pulse-skipping, low-dropout (LDO) mode and in Pulse Width Modulation (PWM) mode, providing efficient power delivery.

The integrated circuit consists of a high-performance, high-efficiency, low-noise voltage buck regulator architecture. It has an adjustable switching frequency from 150kHz to 1.5MHz and frequency foldback when operating in buck mode, thereby reducing switching noise at heavy load. Integrated current-limit protection helps maintain device reliability and prolong long-term operation. The device also features an output voltage with a minimum voltage of 1V, making it suitable for a wide range of applications with different output voltage requirements.

The circuit also includes an internal gate driver, an adjustable soft-start, an over-voltage protection circuit and a programmable open-drain power-good output. Moreover, the device has an internal power-up control circuit that ensures a smooth transition from power-off state to power-on state.

The MAX1796EUA+T has a fixed output voltage accuracy of ±1%, providing a wide range of output-voltage accuracy. The device is also equipped with a low operating temperature of -40°C for better power delivery efficiency and system reliability.

Conclusion

The MAX1796EUA+T is an ideal DC-DC switching regulator for portable applications. It has an adjustable switching frequency, adjustable soft-start, over-voltage protection, programmable open-drain power-good output, and a flexible output voltage range. It also boasts a wide output-voltage accuracy, an integrated current-limit protection circuit and an internal gate driver. Moreover, its low operating temperature of -40°C makes it a great choice for various applications, including notebooks, subnotebook PCs, portable storage devices, Bluetooth headsets, cellphone chargers, PDAs, and handheld gaming devices.

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