LM27313XQMF/NOPB

The LM27313XQMF/NOPB is a high-performance, step-up (boost) DC-DC converter from Texas Instruments, designed for applications requiring efficient power conversion. This device is particularly suitable 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 LM27313 operates over a wide input voltage range, typically from 2.5V to 5.5V, making it versatile for various battery-powered applications.

2. Output Voltage: It can boost the input voltage to a higher output voltage, which can be set to a specific level using external resistors. The output voltage can be adjusted up to 28V, allowing it to power a variety of loads.

3. Output Current: The device is capable of delivering a maximum output current of up to 1A, depending on the input voltage and output voltage conditions.

4. Efficiency: The LM27313 is designed for high efficiency, often exceeding 90% under typical operating conditions. This efficiency helps to extend battery life in portable applications.

5. Switching Frequency: The converter operates at a fixed switching frequency, typically around 1.2 MHz, which allows for the use of smaller external components, such as inductors and capacitors, thus saving board space.

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

7. Protection Features: The LM27313 includes several built-in protection features, such as overcurrent protection, thermal shutdown, and under-voltage lockout, ensuring reliable operation and safeguarding the device and connected loads.

8. Package Type: The device is available in a compact QFN (Quad Flat No-lead) package, which is ideal for space-constrained applications. The package typically has a thermal pad for improved heat dissipation.

9. Applications: Common applications for the LM27313 include portable devices, battery-powered equipment, LED drivers, and any application requiring a reliable boost converter to step up voltage levels.

Summary:

The LM27313XQMF/NOPB from Texas Instruments is a robust and efficient boost converter that provides a reliable solution for applications needing to increase voltage from low-power sources. Its combination of high efficiency, adjustable output voltage, and built-in protection features makes it a popular choice for engineers designing battery-operated devices and other power-sensitive applications.