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PDF IR3548 Data sheet ( Hoja de datos )
| Número de pieza | IR3548 | |
| Descripción | 60A Dual Integrated PowIRstage | |
| Fabricantes | International Rectifier | |
| Logotipo |  |
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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
1 www.irf.com © 2014 International Rectifier
Submit Datasheet Feedback January 08, 2014
1 page  
IR3548
VCC
CVCC
0.1uF
VDRV
CVDRV
1uF
Single-
phase
PWM
controller
+
CS1
-
+
VOUT
SENSE
-
VCC
VIN1
IR3548
VDRV
BOOT1
VINDIV
PWM1
EN1
PWM2
EN2
MODE
FUNCTION
LGND
SW1
GATEL1
GATEL1
BOOT2
SW2
GATEL2
GATEL2
PGND
CIN1
0.1uF x2
CIN2
47uF x4
VIN
CBOOT1
0.22uF
L1
150nH
RCS1
2.49kΩ
CCS1
0.22uF
+ CS1 -
VOUT
COUT1
470uF x3
Figure 5: IR3548 Single-phase Voltage Regulator, Standard Tri-state PWM, Dual Driver Mode
VCC
CVCC
0.1uF
VDRV
CVDRV
1uF
Single-
phase
PWM
controller
+
CS12
-
+ VCC
VOUT
SENSE
-
VCC
VIN1
VIN2
IR3548
VDRV
BOOT1
VINDIV
PWM1
EN1
PWM2
EN2
MODE
FUNCTION
LGND
SW1
GATEL1
GATEL1
BOOT2
SW2
GATEL2
GATEL2
PGND
CIN1
0.1uF x2
CIN2
47uF x4
VIN
CBOOT1
0.22uF
L1
150nH
RCS1
4.99kΩ
CBOOT2
0.22uF
L2
150nH
RCS2
4.99kΩ
CCS
0.22uF
VOUT
COUT1
470uF x3
+ CS12 -
Figure 6: IR3548 Two-Phase Voltage Regulator, Standard Tri-state PWM, Doubler Driver Mode
5 www.irf.com © 2014 International Rectifier
Submit Datasheet Feedback January 08, 2014
5 Page 
TIMING DIAGRAMS
PWM
Normal PWM
VIH_PWM
VIL_PWM
IR3548
VIT_PWMI
Tri-state
Normal PWM
Tri-state
SW
GATEL
PWM
SW
GATEL
Figure 7: IR3548 Timing Diagram in Standard PWM Mode
Normal PWM
VTH_ATL
VTL_ATL
VVIIHL__AATTLL
ATL Tri-state
ATL Tri-state
Normal
PWM
Figure 8: IR3548 Timing Diagram in International Rectifier’s Active Tri-Level® (ATL) PWM Mode
11 www.irf.com © 2014 International Rectifier
Submit Datasheet Feedback January 08, 2014
11 Page | ||
| Páginas | Total 30 Páginas | |
| PDF Descargar | [ Datasheet IR3548.PDF ] | |
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