Texas Instruments TPS5120 Dual Output, Two-Phase Synchronous Buck Controller with Wide Input Voltage Range TPS5120DBT

The TPS5120DBT is a dual output, two-phase synchronous buck controller designed for high efficiency and flexibility in power management applications. It operates with a wide input voltage range of 4.5 V to 28 V and allows for adjustable output voltage down to 0.9 V. The controller features independent outputs that operate 180 degrees out of phase, which helps to reduce input current ripple and lower input capacitance costs. This device supports a pin-selectable PWM/SKIP mode, enabling high efficiency under light load conditions by switching to a lower operating frequency. The synchronous buck operation can achieve efficiencies up to 95%. Each output channel includes separate standby control and overcurrent protection, enhancing system reliability. The TPS5120DBT also incorporates programmable short-circuit protection, a power good output, and a low quiescent current of 1 mA, with shutdown current as low as 1 nA. It is packaged in a 30-pin TSSOP format, making it suitable for compact designs.