MAX1556ETB/V+T

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The MAX1556ETB/V+T is an integrated power management IC (PMIC) providing a complete solution for small and flexible DC-DC step-up voltage converters with an external or integrated inductor. It is designed for applications in extremely small modules such as those used in the automotive industry. The MAX1556ETB/V+T belongs to the family of DC DC switching regulators and provides an extremely low power dissipation solution for applications including automotive, nighttime lighting, and portable consumer applications.

The MAX1556ETB/V+T integrates a pulse-width modulation (PWM) step-up converter with a linear regulator, making it suitable for applications where efficiency and high power conversions are required. It allows for the adjustable output voltage to be set via a resistor-divider connected to the VCRST pin, and the device can be shut down via the EN pin. The device also comes with an adjustable soft-start function, allowing for a gradual increase in the output voltage over an adjustable start-up time.

This IC also offers enhanced protection against power supply emergencies with its built-in high-temperature and current overload protection features. In the event of an overload, the device automatically reduces the duty cycle of the converter and returns the system to normal operation condition once the fault is removed. It also features an enhanced trip-point voltage accuracy, which helps to minimize the risk of overshooting or undershooting the target voltage.

The MAX1556ETB/V+T is suitable for use in high-side or low-side switch configurations, depending on the application. It offers a range of input voltages from 2.7V to 20V, making it suitable for use with a variety of power sources. It also provides two types of adjustable soft-start functions that can be configured to provide a gradual increase in the output voltage over an adjustable start-up time.

The MAX1556ETB/V+T is capable of providing a regulated output voltage from 1.2V to 6V with a maximum output current of 500mA. The device has a switch frequency of 1MHz with an adjustable duty cycle of up to 100%, making it suitable for high-frequency operations. The device also features integrated Pass-through operation for low power standby applications.

In summary, the MAX1556ETB/V+T is an integrated PMIC solution for small and flexible DC-DC step-up voltage converters with an external or integrated inductor. It offers extremely low power dissipation for applications in automotive, nighttime lighting, and portable consumer applications. Its adjustable output voltage and soft-start functions make it suitable for use in high-side or low-side switch configurations and a variety of power sources. Its integrated Pass-through operation also makes it suitable for use in low power standby applications.

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