Datasheet Analog Devices LTC7851EUHH#PBF — Ficha de datos

LTC7851/LTC7851-1
Quad Output, Multiphase Step-Down Voltage Mode
DC/DC Controller with Accurate Current Sharing
FEATURES DESCRIPTION Operates with Power Blocks, DrMOS or External
Gate Drivers and MOSFETs
nn Voltage Mode Control with Accurate Current Sharing
nn ±0.75% 0.6V Voltage Reference
nn Quad Differential Output Voltage Sense Amplifiers
nn Multiphase Capability
nn Phase-Lockable Fixed Frequency 250kHz to 2.25MHz
nn Lossless Current Sensing Using Inductor DCR or
Precision Current Sensing with Sense Resistor or
DrMOS with Integrated Current Sensing
nn V
CC Range: 3V to 5.5V
nn V
OUT Range: 0.6V to VCC – 0.5V
nn Power Good Output Voltage Monitor
nn Output Voltage Tracking Capability with Soft-Start
nn Available in 58-Lead 5mm × 9mm QFN Package The LTC®7851/LTC7851-1 are quad output multiphase synchronous step-down switching regulator controllers that
employ a constant frequency voltage mode architecture.
They maintain excellent current balance between channels
when paralleled with their internal current sharing loop. …