TPS62612YFDR

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The TPS62612YFDR is a highly integrated switching regulator, featuring Pulse Frequency Modulation (PFM) mode control and maximum 2-A output current. It operates at input voltages of 2.5V to 5.5V, and is designed to provide a constant-current source or a Constant Voltage Regulator (CVR) in mobile device applications. The user-programmable control loop allows the device to be optimized for quick response to changing load conditions and input voltages. The TPS62612YFDR is used in a variety of applications, including DC-DC regulation for mobile devices, as well as connections that require a constant voltage regulator.

Application Field

The TPS62612YFDR DC-DC switching regulator is used in a variety of portable electronic devices, such as portable DVD players, mobile phones, and digital cameras. The device allows the user to configure the output with adjustable voltage or current limit and set the maximum output current to 2 A. It is designed to provide high efficiency, low noise, and fast transient response with minimal power consumption. The device supports fast switching speeds of up to 1.5 MHz allowing for small footprint designs.

The TPS62612YFDR is also suitable for battery-powered devices, such as digital media players, PDAs, and digital cameras. Due to its wide input voltage range and high efficiency, it is ideal for maximizing the device battery life.

Working Principle

The TPS62612YFDR adopts the pulse width modulation (PWM) control mode, that is, the width of the output pulse signal is respectively adjusted according to the load and the device input voltage. At the same time, the pulse frequency of the output pulse is modulated according to the given duty cycle, operating frequency up to 1.5 MHz.

Under normal circumstances (normal duty cycle), the output voltage is regulated by adjusting the pulse width of the output pulse. This PWM control circuit continuously compares VREF with the feedback voltage and adjusts their duty cycle, thereby obtaining an average output voltage. The dynamic response of the regulator can be enhanced by increasing the operating frequency of the feedback control loop.

The PFM control mode allows the device to keep the current operating frequency within processes that require lower operating frequencies and reduce noise and switching losses. Even if the load current or source voltage changes, the output pulse width changes and the output voltage is regulated. When the load is relatively low, TPS62612YFDR is operated in the PFM mode. In this case, the output pulse frequency is loaded in accordance with the given duty cycle.

In summary, TPS62612YFDR is a wide-input voltage range, high-current 2A DCDC switching regulator using pulse frequency modulation (PFM) control mode and Pulse Width Modulation (PWM) control. It provides a high switching rate of up to 1.5MHz and a low current consumption while ensuring the high performance and stable output voltage.

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