Datasheet Analog Devices LT8645SJV-2#PBF — 数据表

LT8645S-2
65V, 8A Synchronous Step-Down Silent Switcher
with 2.5µA Quiescent Current
FEATURES DESCRIPTION Silent Switcher® Architecture
n Ultralow EMI Emissions
n Optional Spread Spectrum Modulatio High Efficiency at High Frequency
n Up to 95% Efficiency at 1MHz, 12V to 5V
IN
OUT
n Up to 94% Efficiency at 2MHz, 12V to 5V
IN
OUT
n Wide Input Voltage Range: 3.4V to 65V
n Ultralow Quiescent Current Burst Mode Operatio 2.5μA I Regulating 12V to 3.3V
Q
IN
OUT
n Output Ripple < 10mV
P-P
n Fast Minimum Switch On-Time: 40ns
n Low Dropout Under All Conditions: 60mV at 1A
n Adjustable and Synchronizable: 200kHz to 2.2MHz
n Peak Current Mode Operatio Output Soft-Start and Tracking …

LT8645S-2
65V, 8A Synchronous Step-Down Silent Switcher
with 2.5µA Quiescent Current
FEATURES DESCRIPTION Silent Switcher® Architecture
nn Ultralow EMI Emissions
nn Optional Spread Spectrum Modulation
nn High Efficiency at High Frequency
nn Up to 95% Efficiency at 1MHz, 12V to 5V
IN
OUT
nn Up to 94% Efficiency at 2MHz, 12V to 5V
IN
OUT
nn Wide Input Voltage Range: 3.4V to 65V
nn Ultralow Quiescent Current Burst Mode Operation
nn 2.5μA I Regulating 12V to 3.3V
Q
IN
OUT
nn Output Ripple < 10mV
P-P
nn Fast Minimum Switch On-Time: 40ns
nn Low Dropout Under All Conditions: 60mV at 1A …