TPS61291DRVT

The TPS61291DRVT is a high-efficiency, step-up (boost) DC-DC converter from Texas Instruments, designed for applications requiring a compact power solution. It is particularly well-suited for powering devices from low-voltage sources, such as single-cell lithium-ion batteries or other low-voltage power sources.

Key Features:

1. Input Voltage Range: The TPS61291 operates with an input voltage range of approximately 1.8V to 5.5V, making it versatile for various battery-powered applications.

2. Output Voltage: It can boost the input voltage to a regulated output voltage of up to 5.5V, with an adjustable output voltage option, allowing for flexibility in design.

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

4. Switching Frequency: The TPS61291 operates at a fixed switching frequency of 1.2 MHz, which helps in minimizing the size of external components, such as inductors and capacitors, thus allowing for a compact design.

5. Quiescent Current: It features a low quiescent current, which is beneficial for applications that require long battery life during standby modes.

6. Protection Features: The device includes several protection features, such as overcurrent protection, thermal shutdown, and under-voltage lockout, ensuring reliable operation and safeguarding the circuit.

7. Package: The TPS61291DRVT is housed in a small, thermally efficient 10-pin VQFN (Very Thin Quad Flat No-lead) package, which aids in space-saving designs and enhances thermal performance.

8. Control Method: It employs a peak current mode control scheme, which provides fast transient response and stable operation across a wide range of load conditions.

Applications:

The TPS61291 is ideal for a variety of applications, including:

• Portable devices such as smartphones, tablets, and wearables.
• IoT (Internet of Things) devices that require efficient power management.
• Battery-powered sensors and remote monitoring equipment.
• Energy harvesting applications where low input voltages need to be boosted.

Conclusion:

Overall, the TPS61291DRVT from Texas Instruments is a highly efficient, compact, and versatile boost converter that meets the demands of modern electronic devices, particularly in battery-operated applications. Its combination of high efficiency, low quiescent current, and robust protection features makes it a reliable choice for designers looking to optimize power management in their products.