Texas Instruments – DC-DC buck converter features remote voltage sensing and telemetry support

Texas Instruments has introduced a high density, 18V input, 35A synchronous DC-DC buck converter, which offers full differential remote-voltage sensing and PMBus to support telemetry. The power converter integrates high and low-side MOSFETs into a small-footprint package that is significantly denser than competitive devices. Designers can stack two converters in parallel to drive loads up to 70A for processors in space-constrained and power-dense applications in various markets, including wired and wireless communications, enterprise and cloud computing, and data storage systems. The highly integrated power converter is claimed to be 44% denser (amperes per square millimeter) than competitive devices. It features 0.5% reference-voltage accuracy over temperature and full differential remote-voltage sensing to meet the voltage accuracy requirements of deep sub-micron processors. Current sharing enables the stacking of two converters and high efficiency and excellent thermal performance are delivered via the device’s single-pad, stacked die, quad flat no-lead (QFN) package.