BD8628EFV-E2

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BD8628EFV-E2 is a DC-DC switching regulator, a type of power management integrated circuit (PMIC). It is commercially available from ROHM Semiconductor, and it is designed for applications that require wide range of output voltage with high efficiency. The device also has low standby current to maximize battery life.

A DC-DC switching regulator is a voltage regulation device that uses the power conversion process, switching from the source of higher voltage to the source of lower voltage. The mode of control plays a key role in the efficient power delivery to loads of varying resistance. When switching between voltage sources, DC-DC converters are used to step up or step down the DC output voltage to match the load requirement. It is widely used in a variety of applications, such as automotive, industrial, telecommunications, and A/V broadcast, as it is highly efficient and cost effective.

The BD8628EFV-E2 provides a high level of satisfaction in areas such as high output accuracy, fast transient response and small size. It minimizes output voltage ripple by using an internal linear regulator, while a fast response feedback controller minimizes output voltage overshoot. This device includes all the necessary components to safely regulate the output voltage and a Fault OFF (FOFF) output and a power good (PG) output for system protection.

The BD8628EFV-E2 is a step-down switching regulator with input voltage from 2.7V to 6.5V, and output voltage from 0.9V to 3.3V. The device is capable of delivering up to 800mA of current at a switching frequency of 1.5MHz. It includes a shutdown mode which reduces the power consumption to a few µA, and powersave mode which enables lower power consumption while still providing the desired voltage and current outputs. The device has built-in protection features such as overvoltage protection, overcurrent protection and thermal shutdown.

The BD8628EFV-E2 works on the principle of constant on-time (COT). This controller works by maintaining a constant on-time for the switch, regardless of output current or input voltage. This constant on-time takes into account the input voltage and sets the current to keep voltage drop across the inductor and switch at a minimum. Thus, the device is able to provide high efficiency at various load and line conditions.

The BD8628EFV-E2 is ideally suited for applications requiring high efficiency and low power consumption, such as portable electronic devices, telecommunication systems, and automotive electronic devices. Additionally, the device is able to provide excellent EMI performance which makes it suitable for noise sensitive applications.

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