TPS61177ARGRR

The TPS61177ARGRR is a high-performance, step-up (boost) DC-DC converter from Texas Instruments, designed for applications requiring efficient power conversion. This device is particularly well-suited for powering devices from low-voltage sources, such as single-cell lithium-ion batteries, and is commonly used in portable electronics, LED drivers, and other battery-operated devices.

Key Features:

1. Input Voltage Range: The TPS61177ARGRR operates over a wide input voltage range, typically from 2.3V to 5.5V, making it versatile for various battery types and configurations.

2. Output Voltage: The device can boost the input voltage to a regulated output voltage, which can be set up to 28V, allowing it to power a variety of loads.

3. Efficiency: The TPS61177ARGRR boasts high efficiency, often exceeding 90%, which is crucial for battery-powered applications to extend battery life and reduce heat generation.

4. Switching Frequency: It operates at a fixed switching frequency of 1.2 MHz, which helps in minimizing the size of external components, such as inductors and capacitors, leading to a more compact design.

5. Control Method: The device employs a current-mode control scheme, which enhances stability and transient response, making it suitable for applications with varying load conditions.

6. Protection Features: The TPS61177ARGRR includes several built-in protection features, such as over-voltage protection (OVP), under-voltage lockout (UVLO), and thermal shutdown, ensuring reliable operation and safeguarding the device and connected components.

7. Package: It comes in a compact 16-pin HTQFP (Thin Quad Flat Package) or VQFN (Very Thin Quad Flat No-lead) package, which is ideal for space-constrained applications.

8. Applications: Typical applications include portable devices, battery-powered equipment, LED drivers, and any system requiring a reliable boost converter to step up voltage efficiently.

Electrical Characteristics:

• Output Current: The TPS61177ARGRR can deliver output currents up to 1.5A, depending on the input voltage and output voltage conditions.
• Quiescent Current: It features a low quiescent current, which is beneficial for battery-operated devices, as it helps to minimize power consumption during idle states.

Conclusion:

The TPS61177ARGRR from Texas Instruments is a robust and efficient boost converter that provides designers with a reliable solution for stepping up low input voltages to higher output levels. Its combination of high efficiency, compact size, and integrated protection features makes it an excellent choice for a wide range of applications in the portable electronics market.