ISL6534CVZ Datasheet

Dual PWM with Linear


The ISL6534CVZ is a versatile triple regulator that has two independent synchronous-rectified buck controllers with integrated 12V gate drivers (OUT1 and OUT2) and a linear controller (OUT3) to offer precision regulation of up to three voltage rails. An optional shunt regulator allows 12V only operation, when a 5V supply is not available. ISL6534CVZ Features • Two Synchronous-Rectified Buck Controllers - Voltage Mode Control - VIN Range up to 12V - VOUT Range from 0.6V to 6V - 12V LGATE Drivers; up to 12V Boot Strap for UGATE• Switcher References - 0.6V Reference for OUT1 - 3.3V Reference Output for OUT2 - External Reference Input for OUT2 - Buffered VTT Reference Output• Switcher Clocking - Phase Options for Optimal Clock Relationship - Resistor-Selectable Switching Frequency (300kHz default; Resistor to Ground for 300kHz to 1MHz range) - Synchronization-Capable Switching Frequency (Connect FS_SYNC to Separate Regulator)• Single Linear Controller - Drives N-Channel MOSFET - 0.6V Reference - VIN Range up to 12V - VOUT Range from 0.6V to 3.3V• 12V and 5V Supplies Required (but optional shunt regulator can generate VCC = 5.8V from 12V)• Three Independent Soft-Start/Enable Pins - Gang Together or Control Independently• PGOOD Output Indicates All Outputs Available• Thermally Enhanced QFN or TSSOP Package• QFN Package: - Compliant to JEDEC PUB95 MO-220 QFN - Quad Flat No Leads - Package Outline- Near Chip Scale Package footprint, which improves PCB efficiency and has a thinner profile• Pb-Free Plus Anneal Available (RoHS Compliant)


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