The TPS54202H from Texas Instruments is a high-performance synchronous buck converter designed for compact, efficient power regulation. Supporting a wide input voltage range of 4.5 V to 28 V with an integrated 2-A continuous output, it is ideal for distributed power systems, industrial applications, and consumer electronics. With built-in MOSFETs, internal loop compensation, and Eco-mode™ technology, it delivers high efficiency, low quiescent current, and reliable protection features in a small SOT-23 package.

Features:

• Wide input voltage range: 4.5 V to 28 V

• Integrated 148 mΩ (high-side) and 78 mΩ (low-side) MOSFETs for 2-A continuous current

• Ultra-low 2 µA shutdown current and 45 µA quiescent current

• Internal 5-ms soft start for controlled startup

• Fixed 500-kHz switching frequency for stable operation

• Eco-mode™ pulse skip for optimized light-load efficiency

• Peak current mode control with internal loop compensation

• Built-in overcurrent protection for both MOSFETs with hiccup mode recovery

• Overvoltage protection and thermal shutdown for safety

• Compact SOT-23 (6-pin) package for high power density

Applications:

• Industrial Applications – 12 V / 24 V distributed power-bus supply, white goods, motor control systems

• Consumer Electronics – Audio equipment, printers, set-top boxes (STB), digital TVs (DTV)

• General Purpose – Efficient DC-DC regulation for compact and battery-powered systems

Specifications:

• Input Voltage: 4.5 V – 28 V

• Output Current: 2 A continuous

• Switching Frequency: 500 kHz (fixed)

• Soft Start: 5 ms (internal)

• Quiescent Current: 45 µA

• Shutdown Current: 2 µA

• Efficiency: High efficiency with Eco-mode™ light-load operation

• Protection: Cycle-by-cycle current limit, OVP, hiccup mode, thermal shutdown

• Package: SOT-23 (6-pin)

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