TPS2551QDBVRQ1 – TEXAS INSTRUMENTS

The TPS2551QDBVRQ1 is a Texas Instruments single-channel, 4A synchronous buck converter in a compact 6-pin WSON package. Specifically designed for high-efficiency power delivery in portable and space-constrained applications, it operates from a 2.7V to 5.5V input voltage range, delivering a highly adjustable output voltage from 0.8V to V_IN -0.3V. Its internal synchronous rectification minimizes power loss, achieving efficiencies exceeding 90% at typical loads. The device features a 150kHz switching frequency, allowing for the use of smaller, less expensive external components. _x000D_
_x000D_
The TPS2551QDBVRQ1 employs a constant-frequency pulse-width modulation (PWM) architecture with adjustable soft-start and overcurrent protection, ensuring stable operation and system robustness. Its enable pin allows for easy power control, while the power good output signals the proper functioning of the converter. Common applications include powering microprocessors, memory devices, and other sensitive loads in portable devices, embedded systems, and battery-powered equipment. Its small footprint and high efficiency make it a superior choice over traditional linear regulators when space and power consumption are critical design parameters. The device’s robust protection features provide reliable operation even in challenging environments.