ED8101P01QI

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ED8101P01QI Application Field and Working Principle

ED8101P01QI is a fast-response DC-DC switching controller IC developed by Shanghai EDtech Technology Co., Ltd. It is a voltage regulator IC within the category of PMIC (Power Management ICs). DC-DC switching controllers are an important part of PMICs, as they regulate and control the output voltage of an electrical circuit, either stepping up or stepping down the input voltage.

The ED8101P01QI is designed for medium power fixed frequency DC-DC Buck (step-down), Buck-Boost (step-up/step-down), Boost (step-up) and SEPIC (convert AC to DC) applications. It integrates most of the functions of a switching power supply such as frequency control, over current/voltage protection, soft start and power saving mode, which can simplify the circuit design and also obtain reliable operation.

The ED8101P01QI is a high-speed, low component count, and high efficiency switching controller. It has a maximum operating frequency of 500kHz, and a minimum operating frequency of 100kHz. It is optimized for wide input voltage range down to 2.3V and up to 30V with a minimum duty cycle of 0.1. The ED8101P01QI is also designed to reduce output ripple and lower system cost. The input and output under-voltage lockout (UVLO) can regulate the operating regions of the power supply, which improves the systems stability and reliability.

The ED8101P01QI offers protection features to benefit the system, such as over-current protection and over-voltage protection. The over-current protection triggers when the current of the inductor is higher than the current limit and will shut down the system until the fault is cleared. The over-voltage protection prevents the power supply from reaching a dangerous level due to faults.

Moreover, the ED8101P01QI has a soft start function to reduce input current at start-up, and a power saving mode to reduce power consumption in light load conditions. The internal high gain error amplifier will regulate the output voltage, while the PWM comparator generates an output signal that that determines the duty cycle of the switching cycle. This helps to maintain steady output voltage in different working states. The ED8101P01QI also has a built-in over temperature protection and a thermal shutdown to protect the system from high temperature conditions.

In summary, the ED8101P01QI is ideal for a wide range of DC-DC Buck, Boost, Buck-Boost, and SEPIC converters. It has a wide working voltage range and high operating frequency. It has protection functions for over current, over voltage, and over temperature conditions. It also has a soft-start feature to reduce input current and a power saving mode to reduce power consumption. This makes the ED8101P01QI an efficient and reliable solution for medium power DC-DC switching applications.

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