LM2735YQMF/NOPB PMIC - Voltage Regulators - DC DC Switching Regulators by Texas Instruments

The LM2735YQMF/NOPB is a high-performance, step-up (boost) DC-DC converter designed by Texas Instruments. It is particularly suited for applications requiring a compact power supply solution with high efficiency and low noise. Below is a detailed description of its key features and specifications:

General Overview:

• Type: Step-Up (Boost) DC-DC Converter
• Manufacturer: Texas Instruments
• Package: QFN (Quad Flat No-lead) with a thermal pad, which aids in heat dissipation and allows for a compact design.

Key Features:

• Input Voltage Range: The LM2735 operates over a wide input voltage range, typically from 2.5V to 5.5V, making it suitable for battery-powered applications.
• Output Voltage: It can generate output voltages up to 28V, which is ideal for powering high-voltage devices from lower voltage sources.
• Output Current: The device can deliver up to 1A of output current, providing sufficient power for various applications.
• Efficiency: The LM2735 boasts high efficiency, often exceeding 90%, which helps in reducing heat generation and prolonging battery life in portable devices.
• Switching Frequency: It operates at a fixed switching frequency of 1.2 MHz, allowing for the use of smaller external components, such as inductors and capacitors, which contributes to a compact design.
• Soft Start: The soft-start feature minimizes inrush current during startup, protecting the circuit and connected components from potential damage.
• Protection Features: The device includes built-in protection features such as overcurrent protection, thermal shutdown, and under-voltage lockout, enhancing reliability and safety in various applications.

Applications:

The LM2735YQMF/NOPB is suitable for a variety of applications, including:

• Portable devices (e.g., smartphones, tablets)
• Battery-powered equipment
• LED drivers
• Powering RF and analog circuits
• Automotive applications

Electrical Characteristics:

• Quiescent Current: The device has a low quiescent current, which is beneficial for battery-operated devices, as it helps to extend battery life during idle periods.
• Load Regulation: Excellent load regulation ensures stable output voltage under varying load conditions.
• Line Regulation: The device maintains output voltage stability despite changes in input voltage.

Thermal and Mechanical Characteristics:

• Operating Temperature Range: The LM2735 is designed to operate in a wide temperature range, typically from -40°C to +125°C, making it suitable for harsh environments.
• Thermal Pad: The QFN package includes a thermal pad that enhances thermal performance, allowing for better heat dissipation.

Conclusion:

The LM2735YQMF/NOPB from Texas Instruments is a versatile and efficient boost converter that meets the demands of modern electronic applications. Its compact design, high efficiency, and robust protection features make it an excellent choice for engineers looking to implement reliable power solutions in their designs.