LM2575WU

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LM2575WU Application Field and Working Principle

The LM2575WU is a Contemporary (PMIC) Voltage Regulator and associated DC-DC Switching Regulator designed for applications such as wireless telecom and short range networking applications. LM2575WU delivers reliable and efficient power over a wide range of industrial, consumer and automotive applications. It provides a stable output voltage of up to 5.19A, allowing for lower core voltage and higher efficiency in applications that utilizes larger currents.

Application Field

The LM2575WU is capable of delivering reliable and efficient power in numerous industrial, consumer and automotive applications. The device is capable of providing up to 5.19A of stable output voltage, allowing for lower core voltage at higher current loads. Its reliable and low noise operation also makes it suitable for powering high-speed wireless data transceivers, such as those used in digital cellular phones, PDAs, Bluetooth or Wi-Fi devices, etc.

Low Standby Power

The LM2575WU features extremely low standby power consumption and can be configured to remain in standby mode, drawing less than 2µA of current. This extremely low standby power enables designers to reduce overall system power consumption and improve efficiency in applications with low duty cycles.

Over Voltage / Load Protection

The LM2575WU incorporates over-voltage and over-load protection to safeguard against short circuit, thermal and over current events, which ensures efficient and safe operation in demanding applications.

Wide Input Voltage Range

The LM2575WU operates over a wide input voltage range of 4.5V to 24.5V, which allows design engineers to optimize the power solution for their application. The device offers greater levels of flexibility and improved efficiency, as it can deliver the desired output voltage regardless of the input voltage.

Dual Mode Pulse Frequency Modulation (PWM) / Pulse-Width Modulation (PWM)

The LM2575WU utilizes a dual mode Pulse Frequency Modulation (PFM) and Pulse-Width Modulation (PWM) control method to offer improved efficiency over a wide input voltage. The PFM/PWM Control allows for automatic switching between PFM and PWM modes depending on the load current. This allows the device to consume less energy while maintaining output voltage at various conditions.

Workin

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