The TPS40210DRCR is a high-efficiency synchronous buck converter from Texas Instruments, designed for compact, low-power DC-DC conversion in industrial and automotive applications. This device delivers an adjustable output voltage from 0.8V to 18V, with a maximum output current of 1A. It operates over an input voltage range of 4.5V to 36V, making it suitable for wide-ranging power supplies, including automotive batteries and industrial rails. Housed in a compact DRC package (5.0 mm × 3.0 mm), it combines high efficiency (up to 95%) with low quiescent current (60 µA), enabling efficient power delivery in space-constrained designs.

Key Features

The TPS40210DRCR features a programmable switching frequency (100 kHz to 1 MHz) for flexible system design and reduced EMI. Its synchronous rectification minimizes power loss, while integrated protections—including overcurrent, overvoltage, and thermal shutdown—ensure robust operation in harsh environments. The converter supports fast transient response and maintains stable output under varying load conditions. Its wide operating temperature range (-40°C to +125°C) and 36V input capability make it ideal for automotive and industrial systems exposed to voltage transients and temperature extremes.

Applications

Primarily used in industrial control systems, the TPS40210DRCR is critical for powering sensors, microcontrollers, and low-power peripherals in factory automation, robotics, and IoT devices. It is widely employed in automotive electronics for infotainment systems, LED lighting, and battery management. Its wide input voltage tolerance also suits renewable energy inverters, telecom infrastructure, and medical equipment requiring reliable power conversion in fluctuating supply conditions.

Summary

The TPS40210DRCR combines high efficiency, compact form factor, and comprehensive protection features, making it a versatile solution for low-power DC-DC conversion in automotive, industrial, and embedded systems. Its flexibility in input/output voltage ranges and switching frequency, coupled with robust reliability, positions it as a key component for engineers designing power-dense, cost-effective systems requiring stable and efficient voltage regulation.