Texas Instruments High-Performance Analog TPS54540QDDAQ1

The TPS54540-Q1 is a 4.5-V to 42-V input, 5-A step-down DC-DC converter with an integrated 92-mΩ high-side MOSFET, designed for automotive applications and qualified to AEC-Q100 Grade 1 with an operating junction temperature range of -40°C to 150°C. It features Eco-mode™ for high efficiency at light loads, adjustable switching frequency from 100 kHz to 2.5 MHz, and synchronization to an external clock. The device is housed in an 8-pin HSOP PowerPAD package measuring 4.89 mm × 3.90 mm and meets RoHS standards. Thermal shutdown activates at 176°C with a 12°C hysteresis, and it supports undervoltage lockout adjustable via external resistors.