STMicroelectronics 5-Channel Switching Buck Converter 1 A 1.2V to 35V 275 kHz SOIC 8-Pin L5970D013TR

The STMicroelectronics L5970D013TR is a high-performance 5-channel switching buck converter designed for efficient voltage regulation in electronic systems. This power management IC delivers output currents up to 1 A with output voltages adjustable within the range of 1.2V to 35V, making it highly versatile for various industrial and commercial applications. Operating at a fixed switching frequency of 275 kHz, it employs an internal P-Channel D-MOS transistor with a typical Rdson of 250 mΩ, which reduces the need for bulky external components.

Its wide input voltage range from 4.4V to 36V makes the device ideal for 5V bus and computer-related electronics. The inbuilt pulse-by-pulse current limit with frequency modulation ensures stable operation and short circuit protection. The L5970D013TR also features an inhibit pin for zero current consumption during shutdown, thermal shutdown capabilities to prevent overheating, and protection against feedback disconnection which enhances reliability.

The SOIC 8-pin package, with compact dimensions (5 mm length, 4 mm width, and 1.25 mm height), supports surface mounting, facilitating efficient PCB space usage. The device achieves low dropout operation with 100% duty cycle and maintains a quiescent current of only 2.5 mA, enabling low power consumption in idle states.

Key advantages include a stable 3.3V reference with ±2% accuracy and line and load regulation specifications of 10 mV and 15 mV respectively. Its operating temperatures range from -40°C to 150°C, supporting use in diverse environments. RoHS compliance assures adherence to environmental safety standards.

Step-down switching regulator delivering up to 1 A output. Internal P-Channel D-MOS switching element minimizes external components. Wide input voltage range suitable for 5V systems. Pulse by pulse current limit ensures reliable short circuit protection.

Inhibit function allows zero current shutdown operation. Thermal shutdown for device safety. Compact SOIC 8-pin surface mount package. Low quiescent current and low dropout operation for efficient power management. Highly accurate 3.3V reference voltage.

Wide operating temperature range and RoHS compliant.

This buck converter is extensively used in industrial electronics, power supplies, embedded systems, communication devices, and computing applications. It offers reliable and efficient power conversion that meets the demands of modern electronic designs.

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