STMicroelectronics, Inc. Dc/dc Conv, Sync Buck, 600Khz, 150Deg C; Topology Stmicroelectronics L6984TR

The L6984 is a synchronous step-down switching regulator designed to deliver up to 400 mA of DC output current. It operates within an input voltage range of 4.5 V to 36 V and features adjustable output voltage starting from 0.9 V, with a fixed 3.3 V output that does not require an external resistor divider. The device supports a switching frequency adjustable between 250 kHz and 600 kHz, making it suitable for various applications including automotive systems, battery-powered devices, and low noise applications such as car audio and sensors. The regulator incorporates a low consumption mode (LCM) for enhanced efficiency during light load conditions, and a low noise mode (LNM) to maintain a consistent switching frequency across varying load currents. It includes features such as thermal shutdown, pulse-by-pulse current sensing for overcurrent protection, and an open collector power good (PGOOD) output for voltage sequencing. The compact VFDFPN10 package measures 4 x 4 x 1.0 mm, facilitating integration into space-constrained designs.