AP2125K-1.8TRG1

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The AP2125K-1.8TRG1 is a low dropout regulator that falls into the category of PMIC (Power Management Integrated Circuits) Voltage Regulators Linear. This regulator is designed as a low cost, low quiescent current, low voltage precision linear regulator for micro processor core power supplies. It is best suited for low voltage, high power density applications.

For a general understanding of how the device works, we need to understand the components. The AP2125K-1.8TRG1 includes a Power MOSFET, an operational amplifier and a voltage reference. The device is capable of delivering up to 1.8 A of output current to the load. The voltage reference provides a stable reference voltage that is used to regulate the output voltage. The operational amplifier is used to compare the reference voltage with the voltage feedback from the output. The output voltage is then adjusted accordingly to maintain a constant voltage at the output.

The AP2125K-1.8TRG1 is ideal for applications that require a low voltage, low noise and high power density, such as micro processor core power supplies and embedded system power supplies. The regulator features ultra-low quiescent current – only 45µA with 1.8 A of output current. The device also features high accuracy output voltage with an accuracy of better than ±1% over the entire operating temperature range to help ensure proper regulation of the output voltage.

Additionally, the device also features a wide operating temperature range of -40°C to +85°C and over temperature and over voltage protection for added reliability. Other features include a low dropout voltage of only 200mV, very low ESR and fast transient response.

The AP2125K-1.8TRG1 linear voltage regulator is an ideal solution for a wide range of low voltage, high power density applications. With its ultra-low quiescent current, high accuracy and wide operating temperature range, the device is an excellent choice for powering microprocessor core supplies and embedded system power supplies. The device is also capable of fast transient response and can be used in applications that require high power density and excellent output voltage accuracy.

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