36V_IN, 3A, High Efficiency, 2.1MHz, Synchronous Step-Down Converter

The RTQ2104BP is a 3A, high-efficiency, current mode synchronous step-down converter which is optimized for automotive applications. The device operates with input voltage from 3V to 36V and is protected from load dump transients up to 42V which eases input surge protection design. The device can program the output voltage between 0.8V and V_IN. The peak current mode control with simple internal compensation allows the use of small inductors and results in fast transient response and good loop stability.
The ultra-low minimum on-time enables constant-frequency operation even at very high step-down ratios. The built-in spread-spectrum frequency modulation further helps system designers with better EMC management.
The RTQ2104BP provides complete protection functions such as input under-voltage lockout, output under-voltage protection, over-current protection, and thermal shutdown. Cycle-by-cycle current limit provides protection against shorted outputs, and soft-start eliminates input current surge during start-up. The RTQ2104BP is available in a SOP-8 (Exposed Pad) package.