TPS60242DGKRG4

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TPS60242DGKRG4 Application Field and Working Principle

The TPS60242DGKRG4 is a high performance DC-DC switching regulator. It belongs to a sub-category of regulator-voltage regulators-DC-DC switching regulators. It is typically used to power systems with a wide range of diverse components, including microprocessors, digital signal processors, peripheral interfaces, and memory devices.

The TPS60242DGKRG4 offers high efficiency, up to 95%, over a wide input and output voltage range, from 1.8V to 5.5V. An advanced switch-mode architecture, combined with proprietary adaptive loop control techniques, results in fast transient response and excellent supply regulation. The regulator also integrates current limit protection, thermal shutdown protection, and adjustable output voltage soft start.

In addition to its high performance features, the TPS60242DGKRG4 provides low current quiescent current of 1µA (TYP) , making it an ideal energy efficient DC-DC solution for portable applications. The regulator can switch at frequencies up to 400kHz, allowing the implementation of a very compact board layout.

Working Principle

The TPS60242DGKRG4 is a PWM step-down (buck) DC-DC switching regulator. This device uses an advanced PWM step-down scheme, based on a high performance voltage regulation feedback loop. The integrated high side and low side power switches are designed to minimize input and output ripple, with fast transient response and low output noise.

The oscillator frequency can be programmed between 250kHz and 400kHz for further optimization of switching losses and filter components. The operating frequency can also be modified by an external resistor. The current mode control topology employed in the TPS60242DGKRG4 eliminates most of the problems associated with voltage-mode control topologies. A precision voltage reference and comparator monitor the output voltage, providing excellent output regulation.

The TPS60242DGKRG4 also has additional features that improve performance and protection. The built-in current limit protection limits the output current and protects the device from overloads. Input under-voltage protection can be enabled to prevent the device from running during low input voltages. In addition, thermal shutdown protection is enabled to protect the device from excessive temperature. The output voltage soft start circuitry reduces power surges when the device is turned on.

Applications

The TPS60242DGKRG4 is suitable for a wide range of applications, including:

• Microprocessor/microcontroller and digital signal processor core power supplies
• Portable/Battery-powered equipment
• DVRs and Set-top Boxes
• Communication systems
• High-end industrial equipment
• Computer peripherals
• Data acquisition and control systems
• Networking equipment

The TPS60242DGKRG4 is available in a wide variety of package configurations, with an input voltage range from 2.2V to 5V, and an output voltage range from 1.8V to 5.5V, making it a versatile solution for a wide range of applications.

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