Datasheet Analog Devices LT8653SEV#PBF — 数据表

LT8653S
Dual Channel 2A, 42V,
Synchronous Step-Down Silent Switcher 2
with 6.2µA Quiescent Current
DESCRIPTION FEATURES Silent Switcher®2 Architecture:
n Ultralow EMI on Any PCB
n Eliminates PCB Layout Sensitivity
n Internal Bypass Capacitors Reduce Radiated EMI
n Optional Spread Spectrum Modulatio 2A DC from Each Channel Simultaneously
n Up to 3A on Either Channel
n Ultralow Quiescent Current Burst Mode® Operation:
n 6.2μA I Regulating 12V to 5V
Q
IN
OUT1 and 3.3VOUT2
n Output Ripple < 10mV
P–P
n Optional External VC Pin: Fast Transient Response
n Forced Continuous Mode
n High Efficiency at High Frequency
n 94.1% Efficiency at 1A, 5V
OUT from 12VIN at 2MHz
n Pin-Selectable Fixed Output Voltages: 5V, 3.3V, 1.8V …

LT8653S
Dual Channel 2A, 42V,
Synchronous Step-Down Silent Switcher 2
with 6.2µA Quiescent Current
DESCRIPTION FEATURES Silent Switcher®2 Architecture:
nn Ultralow EMI on Any PCB
nn Eliminates PCB Layout Sensitivity
nn Internal Bypass Capacitors Reduce Radiated EMI
nn Optional Spread Spectrum Modulation
nn 2A DC from Each Channel Simultaneously
nn Up to 3A on Either Channel
nn Ultralow Quiescent Current Burst Mode® Operation:
nn 6.2μA I Regulating 12V to 5V
Q
IN
OUT1 and 3.3VOUT2
nn Output Ripple < 10mV
P–P
nn Optional External VC Pin: Fast Transient Response
nn Forced Continuous Mode
nn High Efficiency at High Frequency
nn 94.1% Efficiency at 1A, 5V
OUT from 12VIN at 2MHz …