The LT8636/LT8637 synchronous step-down regulator features Silent Switcher® architecture designed to minimize EMI emissions while delivering high efficiency at high switching frequencies. Peak current-mode control with a 30 ns minimum on-time allows high step-down ratios even at high switching frequencies. The LT8636’s ultralow 2.5 µA quiescent current—with the output in full regulation—enables applications requiring highest efficiency at very small load currents. The LT8637 has external compensation to enable current sharing and fast transient response at high switching frequencies.