Datasheet Analog Devices LT8643SIV#PBF — 数据表

LT8640S/LT8643S
42V, 6A Synchronous
Step-Down Silent Switcher 2 with
2.5µA Quiescent Current
Description Features Silent Switcher ® 2 Architecture
nn Ultralow EMI/EMC Emissions on Any PCB
nn Eliminates PCB Layout Sensitivity
nn Internal Bypass Capacitors Reduce Radiated EMI
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) …