TPS61010DGS

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The Texas Instruments TPS61010DGS is a fully integrated, synchronous power converter that offers a robust, high performance solution for DC-DC conversions. It has been designed to operate over a wide range of input voltage and output voltage requirements. The TPS61010DGS has been designed with high efficiency and low ripple for the most demanding power management requirements. The device integrates an power output stage, inrush current limiter, embedding start-up and safety features. The TPS61010DGS features four soft start modes, programmable current limit, programmable switching frequency, programmable under-voltage lockout, over current protection and many other features that make it easy to customize to specific application.

The TPS61010DGS is a high efficiency, fixed frequency, step-down DC-DC power converter. It has a wide 4.5V to 20V input voltage range and can deliver up to 3A of continuous output current. It features external components for user-programmable operating parameters such as current limit and switching frequency. The device integrates an on-board power MOSFET, an inrush current limiter, enabling start-up, under-voltage lockout, over-current protection and many other features. It also offers a wide variety of functions such as synchronous rectifier, power factor correction and ripple cancellation.

The TPS61010DGS is a DC-DC buck converter with synchronous rectification based on a current-mode architecture. It is suitable for driving high efficiency, high power, medium to low-power applications such as lighting, power inverters and distributed power systems with a high switch frequency up to 1.5MHz for improved performance.

The TPS61010DGS utilizes the Texas Instruments advanced current-mode control architecture. The control system uses the compensation components to provide a stable loop response, fast dynamic response and the capability to support a wide range of input and output voltage conversions. This enables excellent system performance, easily reaching an efficiency level of 95% and more.

The TPS61010DGS offers two independent channels for dual phase operation with two separate internal MOSFETs. This allows for improved thermal performance and a very low output ripple value. At the same time, the dual phase operation enables improved transient response and EMI performance compared to single-phase operations.

The TPS61010DGS has a wide range of application fields including lighting, power supplies, distributed power systems, medical equipment, industrial control and many more. Its features, high efficiency, low ripple and low component count makes it suitable for any power conversion application.

The working principle of the TPS61010DGS is based on a current-mode switching regulator architecture. It is composed of an output stage with two power switches, the inductor and the output capacitor which filter the output voltage. The output voltage is produced by the converter switching at a fixed frequency and the current mode control loop enabling the real-time voltage tracking and the accurate current limit. The control loop is composed of an error amplifier, gain switcher, high and low cycles current limit and soft-start.

The TPS61010DGS\'s error amplifier is having the role of comparing the actual feedback voltage with the reference voltage in order to produce a signal to control the switching process. The gain switcher has the role of adjusting the signal range to fit the input signals of the current limit circuitry. The current limit circuit acts as a loop protection and takes care that the output current does not exceed the current limit set by the designer.

The soft-start circuit enables a progressive power-up of the output voltage to allow for a safe and reliable startup. It consists of an up and down ramp cycle set by two external resistor and two capacitors. At the end of the cycle the surge activity is stopped, the voltage regulation constantly maintains the output voltage within the specified limits in order to produce a clean and steady output.

The TPS61010DGS is one of the best performance power converter available in the market. Its features make it suitable for a various range of switching regulator applications. It offers high efficiency, low ripple, accurate current limit and low temperature rise, allowing for an excellent power conversion.

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