Intersil ISL6534 ISL6534CRZ Dual PWM with Linear

Features

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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