TPS60502DGSR

The TPS60502DGSR 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 low-voltage devices from a single-cell lithium-ion battery or other low-voltage sources.

Key Features:

1. Input Voltage Range: The TPS60502 operates with an input voltage range of 1.8V to 5.5V, making it versatile for various battery types and configurations.

2. Output Voltage: It can provide a regulated output voltage of 5V, which is ideal for powering USB devices and other peripherals.

3. Output Current: The device can deliver up to 500mA of output current, ensuring it can support a range of applications, from small sensors to more demanding loads.

4. Efficiency: The TPS60502 boasts high efficiency, often exceeding 90%, which helps to extend battery life in portable applications. This efficiency is achieved through its synchronous rectification and low quiescent current.

5. Switching Frequency: The converter operates at a fixed switching frequency of 1.2 MHz, allowing for the use of small external components, which is beneficial for space-constrained designs.

6. Package: The TPS60502 is available in a compact 10-pin VQFN (4mm x 4mm) package, which aids in minimizing the overall footprint of the circuit board.

7. Protection Features: It includes several built-in protection features such as overcurrent protection, thermal shutdown, and under-voltage lockout, enhancing the reliability of the device in various operating conditions.

8. Control Method: The device employs a voltage mode control scheme, which simplifies the design and improves transient response.

9. Application Areas: Typical applications include portable devices, battery-powered equipment, and any application requiring a stable 5V output from a lower voltage source.

Electrical Characteristics:

• Input Voltage Range: 1.8V to 5.5V
• Output Voltage: 5V (fixed)
• Maximum Output Current: 500mA
• Efficiency: Up to 90% or higher
• Switching Frequency: 1.2 MHz
• Quiescent Current: Low, typically around 1.5 µA in shutdown mode

Conclusion:

The TPS60502DGSR from Texas Instruments is a robust and efficient solution for applications requiring a reliable boost converter. Its combination of high efficiency, compact size, and integrated protection features makes it an excellent choice for designers looking to optimize power management in portable and battery-operated devices.