Texas Instruments

TPS77228DGK

TPS77228DGK Description

The TPS77228DGK is a linear voltage regulator designed by Texas Instruments, offering a fixed output voltage of 2.8V and capable of delivering up to 150mA of output current. This regulator is housed in an 8-pin VSSOP package, making it suitable for surface-mount applications. Despite being marked as obsolete, the TPS77228DGK remains a reliable choice for applications requiring a stable power supply with low dropout voltage and efficient power management.

TPS77228DGK Features

• Output Type: Fixed, ensuring a consistent 2.8V output voltage.
• Input Voltage Range: Capable of handling input voltages up to 10V, providing flexibility in power source selection.
• Output Current: Delivers a robust 150mA of current, suitable for a variety of low-power applications.
• Low Dropout Voltage: With a maximum dropout voltage of 0.27V at 50mA, the TPS77228DGK ensures high efficiency even at low input-to-output voltage differentials.
• Control Features: Includes enable and power good signals, allowing for precise control and monitoring of the power supply status.
• Protection Features: Features over-current, over-temperature, and reverse polarity protection, safeguarding the regulator and connected circuits from potential damage.
• Low Quiescent Current: Consumes only 125µA of quiescent current, minimizing power loss and enhancing overall system efficiency.
• High PSRR: Achieves a power supply rejection ratio of 60dB at 1kHz, ensuring minimal noise and ripple on the output voltage.
• Compliance: Meets REACH and RoHS3 compliance, ensuring environmental safety and regulatory adherence.
• Packaging: Supplied in a tube package, facilitating easy handling and integration into surface-mount designs.

TPS77228DGK Applications

The TPS77228DGK is ideal for a range of applications where a stable, low-voltage power supply is required. Its low dropout voltage and high efficiency make it particularly suitable for battery-powered devices and portable electronics, where minimizing power loss is crucial. The regulator's fixed output voltage and robust current delivery also make it a reliable choice for microcontroller power supplies, sensor modules, and other low-power embedded systems.

Conclusion of TPS77228DGK

The TPS77228DGK, despite its obsolete status, remains a valuable component for engineers seeking a reliable, low-voltage regulator with high efficiency and robust protection features. Its low dropout voltage, low quiescent current, and high PSRR make it an excellent choice for applications where power efficiency and stability are paramount. While newer alternatives may be available, the TPS77228DGK continues to offer a proven solution for a variety of low-power, surface-mount applications.