MAX8662ETM+T

Introduction

MAX8662ETM+T is a high-performance, ultra-low-power, low-dropout (LDO), integrated switching regulator specially designed for advanced portable device applications such as notebooks, tablet PCs and mobile phones. This device provides high-efficiency and extremely low-dropout performance at very low operating temperatures and current levels, making it ideal for space-constrained applications.

Application Field

The MAX8662ETM+T device is suitable for delivering a reliable voltage source in a wide range of portable applications, including battery-powered notebooks, tablet PCs and mobile phones. The output power capability is up to 1.5W, allowing the device to be used for long-term operation even under heavy-load conditions. Furthermore, the device is able to deliver up to 500mA output current at very low-dropout performance, making it ideal for powering low-leakage, high-current circuits.

In addition, the MAX8662ETM+T is designed to maintain a high-efficiency mode even when operating at very low loads. The device incorporates a fast-transitioning, smooth-switching PFM controller and a low-loss Power FET with low-frequency switching capability and low-dropout characteristics to ensure that the output voltage remains stable and efficient even under heavy-load conditions.

Working Principle

The MAX8662ETM+T uses a two-stage topology to ensure a stable voltage supply and a high-efficiency performance. The first stage is the Low Dropout (LDO) regulator, which is capable of providing an output voltage from 1.2V up to 5.0V at up to 500mA. The LDO regulator uses a power FET and a precision reference to deliver a precise and constant output voltage.

The second stage is the switching regulator, which is incorporated in the MAX8662ETM+T device. This switching regulator is capable of delivering a steady output voltage up to 1.5W. The switching regulator uses a low-loss power FET and a fast-transitioning, smooth-switching PFM controller to maintain a constant output voltage. Additionally, the device also features a Power Shutdown function to reduce power consumption when not in use.

Conclusion

The MAX8662ETM+T is a high-performance, ultra-low-power, and low-dropout integrated switching regulator that is specifically designed for advanced portable device applications such as notebooks, tablet PCs, and mobile phones. The device incorporates a two-stage topology with a Low Dropout (LDO) regulator and a switching regulator to ensure a stable voltage supply and high-efficiency performance at very low loads and temperatures. Additionally, the Power Shutdown function reduces power consumption when the device is not in use.