Texas Instruments

LM27403SQE/NOPB

The LM27403SQE/NOPB is a highly integrated, high-efficiency step-down (buck) converter from Texas Instruments. It is designed to provide a regulated output voltage from a wide range of input voltages. The device is available in a small, thermally enhanced QFN package, making it ideal for space-constrained applications.

Description:

The LM27403SQE/NOPB is a synchronous, step-down converter with a wide input voltage range of 4.75V to 23V. It can deliver up to 3A of continuous output current, making it suitable for a variety of applications that require efficient power conversion. The device features a high-efficiency architecture, with efficiencies up to 97%, which helps to minimize power dissipation and reduce the need for heat sinks or other thermal management solutions.

Features:

1. Wide input voltage range: 4.75V to 23V
2. High efficiency: up to 97%
3. Up to 3A continuous output current
4. Thermally enhanced QFN package
5. Synchronous rectification for improved efficiency
6. Programmable soft-start and output voltage tracking
7. Over-current protection, over-voltage protection, and thermal shutdown
8. Low quiescent current: 35µA (typical)

Applications:

The LM27403SQE/NOPB is suitable for a wide range of applications that require efficient power conversion, including:

1. Portable devices: smartphones, tablets, and wearable electronics
2. Industrial equipment: motor controllers, sensor interfaces, and industrial control systems
3. Medical devices: patient monitoring equipment, diagnostic equipment, and portable medical devices
4. Automotive applications: infotainment systems, lighting, and power management
5. Telecommunications equipment: base stations, routers, and network switches
6. Computing and storage devices: laptops, desktop computers, and solid-state drives

The LM27403SQE/NOPB's high efficiency, wide input voltage range, and small form factor make it an excellent choice for applications where space and power efficiency are critical.