Datasheet Analog Devices LT8643S-2

LT8640S-2/LT8643S-2
42V, 6A Synchronous
Step-Down Silent Switcher with
2.5µA Quiescent Current
DESCRIPTION FEATURES Silent Switcher ® Architecture
nn Ultralow EMI Emissions
nn Optional Spread Spectrum Modulation
nn High Efficiency at High Frequency
nn Up to 96% Efficiency at 1MHz, 12V to 5V
IN
OUT
nn Up to 95% Efficiency at 2MHz, 12V to 5V
IN
OUT
nn Wide Input Voltage Range: 3.4V to 42V
nn 6A Maximum Continuous, 7A Peak Output
nn Ultralow Quiescent Current Burst Mode® Operation
nn 2.5µA I Regulating 12V to 3.3V
Q
IN
OUT (LT8640S-2)
nn Output Ripple < 10mV
P-P …