Datasheet Analog Devices LTC7802EUFDM-3.3#PBF — 数据表

LTC7802-3.3
40V Low IQ, 3MHz Dual, 2-Phase Synchronous
Step-Down Controller with Spread Spectrum
FEATURES DESCRIPTION Wide Input Voltage Range: 4.5V to 40V
n Wide Output Voltage Range: 0.8V to 99% • V
IN
n Low Operating I : 12μA (14V to 3.3V, Channel 1 On)
Q
n Fixed 3.3V Output Voltage on Channel 1
n Spread Spectrum Operatio R
SENSE or DCR Current Sensing
n Out-of-Phase Controllers Reduce Required Input
Capacitance and Power Supply Induced Noise
n Programmable Fixed Frequency (100kHz to 3MHz)
n Phase-Lockable Frequency (100kHz to 3MHz)
n Selectable Continuous, Pulse-Skipping, or Low
Ripple, Burst Mode® Operation at Light Loads
n Very Low Dropout Operation: 99% Duty Cycle
n Power Good Output Voltage Monitors
n Output Overvoltage Protectio Internal LDO Powers Gate Drive from V or EXTV
IN
CC
n Low Shutdown I : 1.5μA …