MAX8868EUK32+T

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The MAX8868EUK32+T is an integrated low-noise linear voltage regulator, designed specifically for mobile and small form factor markets, including smart wearable and medical device applications. The PMIC, manufactured by Maxim Integrated, is an advanced and low power voltage regulator, featuring superior transient response, operating stability and accuracy. It includes a temperature-compensated reference and error amplifier, enabling a fast output-voltage settling time and load transient response.

It is a 40 V linear regulator featuring a wide input voltage range from 0.5 V to 40 V and an adjustable output voltage range of 0.5 V to 33 V.The MAX8868EUK32+T offers a low line/load regulation of 4% and a low quiescent current of just 2.5 mA. The maximum output current of the PMIC is 1.2 A and the output-voltage-dropout voltage is typically only 0.175 V. The fast settling time of just 250 μs is achieved by the internal charge-pump voltage follower with Series-Mode operation.

The MAX8868EUK32+T also features a built-in ESD protection circuit and is fully protected against overcurrent and overtemperature conditions. The PMIC is also fully compatible with 1.2 V and 1.5 V logic, making it suitable for both 3.3 V and 5 V microcontroller applications. It is available in a 32-pin TQFN package and operates over a temperature range of -40°C to 125°C.

The MAX8868EUK32+T is an ideal voltage regulator solution for applications such as mobile phones and other small form factor devices, providing superior power-regulation performance for these kinds of applications. It is also very suitable for use in smart wearable products such as earbuds and smart watches, as well as medical and industrial applications.

In terms of its working principle, the MAX8868EUK32+T is a voltage regulator that uses an internal reference voltage and an error amplifier to regulate the voltage at its output. When the output voltage is below the reference voltage, the error amplifier drives the output voltage up until the two values match. When the output voltage exceeds the reference voltage, the error amplifier turns off and forces the output voltage to drop until the two values match again.

The MAX8868EUK32+T also features a built-in low-dropout (LDO) linear regulator. The LDO linear regulator uses a voltage reference and a pass-transistor to regulate the output voltage. When the incoming voltage is greater than the reference voltage, a current is passed through the pass-transistor to the output and this current is regulated by an internal feedback loop.The current is adjusted until the output voltage matches the reference voltage.When the incoming voltage is lower than the reference voltage, the pass-transistor is turned off and the output voltage remains unchanged.

Overall, the MAX8868EUK32+T is an advanced, low-power PMIC voltage regulator ideal for mobile and small form factor markets, providing superior power-regulation performance and a wide range of features suitable for applications such as mobile phones, smart watches, and medical and industrial applications. The PMIC also offers excellent line/load regulation, fast output-voltage settling time and load transient response, as well as a low quiescent current and built-in ESD protection.

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