TPS61080DRCRG4

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TPS61080DRCRG4 is a highly efficient, step-down, current mode, DC-DC switching regulator. It features an integrated, high-side and low-side power MOSFETs with adjustable duty cycle operation, high current capability and a wide range of input and output voltage ratios. The device is capable of supplying up to 3A of continuous output current with a high efficiency giving up to 94% power conversion efficiency.

TPS61080DRCRG4 is a versatile DC-DC switching regulator and can be used in variety of applications including:

• DC-DC buck converter for powering of microcontrollers
• Buck regulator for powering of portable system applications
• DC-DC buck converter for powering of motors

The device includes many enhancements for improved system performance, such as adjustable output current limit, output voltage slew rate and overvoltage protection. It also has internal compensation, making it easy to design with, and an input voltage range of 4V to 32V.

The device integrates a wide range of features and advanced characteristics including:

• Thermal Shutdown with hysteresis
• External FET On/Off
• Adjustable Output Current Limit
• High Switching Frequency up to 2.2MHz
• High Efficiency, Up to 94%
• Low Quiescent Current
• Overvoltage Protection
• Internal compensation
• Short-circuit Protection
• Adjustable Output Voltage Slew Rate
• External soft-start

The TPS61080DRCRG4 family is available in a variety of packages, including an 8-pin SOIC and 8-pin VSON. The device is RoHS-compliant and lead-free, making it suitable for environmental regulations.

The device utilizes a high-frequency, current mode, pulse-width modulation (PWM) control architecture. The device regulates the output voltage via a complete cycle of operation: the switching cycle. During each cycle, the device switches alternately between high current on and low current off states, thus modulating the output voltage in accordance with the reference voltage, VREF.

The device also features an adjustable current-limit function, which allows the user to precisely set the maximum output current. This feature prevents the device from entering an over-current condition if the output current is too high. In this condition, the device stops the output voltage and drives the FETs in low current, preventing any further output voltage degradation.

The device also includes overvoltage protection (OVP) which limits the output voltage to a predetermined threshold when the output current is too high. This helps protect the PCB, the components, and the device itself from really anything the load might draw. OVP is enabled when the device enters a non-overload condition.

The device also features two levels of Thermal Shutdown/Derating, which protects the device from high temperatures. When the device reaches a certain maximum temperature, the Thermal Shutdown/Derating feature is activated, temporarily shutting down the device until the temperature is reduced. This helps to maintain system stability, reduce power dissipation, and limit stress placed on the device.

Overall, the TPS61080DRCRG4 makes an excellent DC-DC switching regulator for a variety of applications, due to its highly efficient, adjustable current limit, and overvoltage protection abilities.

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