TI TPS62175 Buck Converter

Texas Instruments TPS62175 is a high-efficiency synchronous step-down DC-DC converter based on a DCS control topology. With a wide operating input voltage range of 4.75V to 28V, the device is ideal for systems powered by multi-cell Li-ion batteries as well as 12V and higher intermediate rails, delivering up to 500mA of output current. The TPS62175 automatically enters eco-mode at light loads to maintain high efficiency over the entire load range. Additionally, it features a sleep mode that can power applications with advanced power-saving modes like ultra-low-power microcontrollers. The power good output can be used for power sequencing and/or power-on reset. The device has a typical quiescent current of 22µA in normal mode and 4.8uA in sleep mode. In sleep mode, the frequency can be increased by as much as 20% at very low load currents. In shutdown mode, the shutdown current is less than 2A and the output is actively discharging. The TPS62175 is available in adjustable and fixed output voltage versions and is packaged in a small 2mm x 3mm 10-pin WSON package.