MAX6387LT25D1+T

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PMIC, or power management integrated circuit, is a key component for electronic systems which require precise voltage control and regulation. One such PMIC is the MAX6387LT25D1+T, a highly integrated system supervisor specifically designed for QFN-packaged portable applications. This device allows systems to work efficiently and reliably in portable and low-power applications by monitoring several system parameters and providing exceptional accuracy in performance. Its features and functions make it ideal for portable devices, embedded applications, and power management systems such as those found in smartphones, wearables, and other low-power electronics.

The MAX6387LT25D1+T consists of two primary blocks, an analog supervisor block and a digital supervisor block. This PMIC provides precise power-on reset (POR) and power fail (PFM) monitoring by utilizing unique circuit configurations to detect and reduce glitches associated with power-on transitions and input signal switching. It also has a wide range of operating voltages, from 2.7V to 5.5V, allowing for versatile system designs. With the aid of precision analog circuits, the MAX6387LT25D1+T also provides superior accuracy in voltage monitoring and temperature monitoring. This accuracy ensures that systems are protected against abnormal changes in supply voltages and temperatures, ensuring optimal long-term reliability.

The primary application fields for the MAX6387LT25D1+T include portable applications, connected home applications, wearables, and automotive applications. With its small 4 mm × 4 mm package, this PMIC is well-suited for space-constrained designs. Additionally, the device has a Power Consumption of 2.2 μA in standby state, providing outstanding power savings. This makes it ideal for battery-operated devices and power supplies requiring low power consumption and high reliability.

The working principle of the MAX6387LT25D1+T is simple yet effective. The analog supervisor block checks for input supply voltages to make sure they are within their applicable voltage range. It also checks for transient disturbances, such as power supply noise, power up and power down activities. The digital supervisor block provides the reset signal to the system if an input voltage is out of range, or if any of the other monitored signals exceed the predetermined limits. The device is also versatile, as it can detect power-supply noise with frequencies as low as 50 kHz and as high as 2 MHz. Additionally, it has an undervoltage lockout (UVLO) feature as well as adjustable delay times for allowing smooth power-up sequencing.

In summary, the MAX6387LT25D1+T is a highly integrated and versatile PMIC designed for low power applications. It is designed with the latest techniques to ensure precision voltage and temperature monitoring and on-chip reset protection. It is well-suited for applications such as portable devices, connected home appliances, wearables, and automotive designs that require low power consumption and high reliability.

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