IR3548_15 Datasheet, PDF (1/30 Pages) International Rectifier – Integrated Dual, Doubler or Quad mode Driver

60A Dual Integrated PowIRstage
IR3548
FEATURES
• Integrated Dual, Doubler or Quad mode Driver
• 2 pairs of high and low side MOSFETs
• Peak efficiency up to 94% at 1.2V
• Variable gate drive, VDRV, from 4.25V to 12V
to optimize system efficiency
• 5V VCC and VDRV capability for sleep states
where only 5V is available
• Input voltage (VIN) range of 4.25V to 17V
• Output current capability of 30A/phase
• Switching frequency up to 1.5MHz
• Ultra-low Rg MOSFET technology minimizes
switching losses for optimized high frequency
performance
• Synchronous MOSFET with monolithic
integrated Schottky diode reduces dead-time
and diode reverse recovery losses
• Low quiescent current (1uA typical) for
VR12.6/VR12.6+ notebook applications.
• Independent enable control for each phase
• Support both industry standard 3.3V tri-state
PWM and IR Active Tri-Level (ATL) PWM logic
• Small 6mm x 8 mm x 0.9mm PQFN package
• Lead-free RoHS compliant package
APPLICATIONS
• High frequency, low profile DC-DC converters
• Voltage Regulators for CPUs, GPUs, and DDR
memory arrays of servers, notebook.
DESCRIPTION
The IR3548 is a dual integrated PowIRstage® is a
with 2 pairs of co-packed control and synchronous
MOSFETs and an optimized dual phase driver. The
package is optimized internally for PCB layout, heat
transfer and package inductance. The integrated
driver is capable of operating as a Dual driver (2 PWM
controlling 2 phases), a Doubler driver (1 PWM
controlling 2 phases) or a Quad driver (1 PWM
controlling 4 phases in two IR3548s).
Up to 1.5MHz switching frequency enables high
performance transient response, allowing
miniaturization of output inductors, as well as input
and output capacitors while maintaining industry
leading efficiency. Integrating two phases in one
package while still providing superior efficiency and
thermal performance, the IR3548 enables smallest
size and lower solution cost. The lower quiescent
current makes it suitable for next generation
VR12.6/VR12.6+ notebook applications.
The IR3548 uses IR’s latest generation of low
voltage MOSFET technology characterized by
ultra-low gate resistance (Rg) and charge (Qg) that
result in minimized switching losses. The synchronous
MOSFET optimizes conduction losses and features a
monolithic integrated Schottky to significantly reduce
dead-time and diode conduction and reverse recovery
losses.
The IR3548 is optimized specifically for CPU core
power delivery in 12Vin applications like servers,
certain notebooks, GPU and DR memory designs.
ORDERING INFORMATION
Base Part Number Package Type
IR3548MTRPBF PQFN 6 mm x 8 mm
Standard Pack
Form
Quantity
Tape and Reel
3000
Orderable Part Number
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Submit Datasheet Feedback January 08, 2014