LM5161PWPR.pdf
Texas Instruments LM5161 Synchronous Buck/Fly-Buck Converter
Texas Instruments LM5161 Synchronous Buck/Fly-Buck Converter is a 100V, 1A synchronous buck converter with integrated high-side and low-side MOSFETs. The constant on-time control scheme requires no loop compensation and supports high step-down ratios with fast transient response. The internal feedback amplifier maintains ±1% output voltage regulation over the entire operating temperature range. The on-time is inversely proportional to the input time, with the result that the switching frequency is approximately constant. A peak-to-valley current limit circuit prevents overloading. The undervoltage lockout (EN/UVLO) circuit independently provides adjustable input undervoltage threshold and hysteresis.