Texas Instruments TPS560200DBVT Adjustable Buck Step-Down Regulator, 500mA

The Texas Instruments TPS560200DBVT is a sophisticated, monolithic synchronous buck (step-down) converter designed for high efficiency and compact power solutions. This regulator integrates high-side and low-side MOSFETs, providing a continuous output current of 500mA. It accepts a wide input voltage range from 4.5V to 17V and delivers an adjustable output from 800mV to 6.5V, making it incredibly versatile for various low-power applications.

The core of its performance lies in the advanced D-CAP2 mode control. This architecture delivers a very fast transient response without requiring any external compensation components, simplifying design and reducing the overall component count. The regulator features an adaptive on-time control that seamlessly transitions between PWM mode at higher loads and an advanced Eco-Mode™ at light loads, optimising efficiency across the entire load spectrum.

Key specifications include a highly accurate 0.8V voltage reference with ±1.3% accuracy over temperature, a fixed 600kHz switching frequency, and a 2ms internal soft-start function for controlled inrush current. It also supports safe start-up into a pre-biased output and includes essential protection features such as thermal shutdown. The device is presented in a compact, surface-mount SOT-23-5 package, ideal for space-constrained PCB designs.

As a green product free from antimony and brominated flame retardants (no Sb/Br), it meets modern environmental standards. Its combination of low standby current, high efficiency, and robust feature set makes it a cost-effective and reliable choice for powering a wide array of electronic systems.