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International Rectifier Electronic Components Datasheet

IR3506 Datasheet

DDR & VTT PHASE

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IR3506
DATA SHEET
XPHASE3TM DDR & VTT PHASE IC
DESCRIPTION
The IR3506 Phase IC combined with IR3522 xPHASE3TM Control ICs implements a full featured DDR3 power
solution. The IR3522 provides control functions for both the VDDR and VTT power rails and interfaces with any
number of IR3506 Phase ICs each driving and monitoring a single phase to power any number of DDR3
DIMMs. The xPHASE3TM architecture delivers a power supply that is smaller, more flexible, and easier to
design while providing higher efficiency than conventional approaches.
FEATURES
Power State Indicator (PSI) interface provides the capability to maximize efficiency at light loads
Anti-bias circuitry
7V/2A gate drivers (4A GATEL sink current)
Support loss-less inductor current sensing
Phase delay DFF bypassed during PSI assertion mode to improve output ripple performance
Over-current protection during PSI assertion mode operation
Integrated boot-strap synchronous PFET
Only four IC related external components per phase
3 wire analog bus connects Control and Phase ICs (VDAC, Error Amp, IOUT)
3 wire digital bus for accurate daisy-chain phase timing control without external components
Debugging function isolates phase IC from the converter
Self-calibration of PWM ramp, current sense amplifier, and current share amplifier
Single-wire bidirectional average current sharing
Soft-stop turn-off to insure VDDR and Vtt tracking
Small thermally enhanced 16L 3 x 3mm MLPQ package
RoHS Compliant
www.DaAtaPSPheLetI4CU.AcoTmION CIRCUIT
12V
CCS
RCS
7 Wire
Bus to
Control
IC
VCCL
Page 1 of 21
U1
1 IOUT
SW 12
2
3
IR3506
DACIN PHASE GATEH
LGND IC
BOOST
11
10
CBST
4 PHSIN
VCCL 9
U11
U12
L
CVCCL
CIN
VOUT+
COUT
VOUT-
V3.02


International Rectifier Electronic Components Datasheet

IR3506 Datasheet

DDR & VTT PHASE

No Preview Available !

IR3506
ORDERING INFORMATION
Part Number
IR3506MTRPBF
* IR3506MPBF
* Samples only
Package
16 Lead MLPQ
(3 x 3 mm body)
16 Lead MLPQ
(3 x 3 mm body)
Order Quantity
3000 per reel
100 piece strips
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed below may cause permanent damage to the device. These are stress ratings only
and functional operation of the device at these or any other conditions beyond those indicated in the operational
sections of the specifications are not implied.
Operating Junction Temperature…………….. 0oC to 150oC
Storage Temperature Range………………….-65oC to 150oC
MSL Rating………………………………………2
Reflow Temperature…………………………….260oC
PIN #
PIN NAME
VMAX
VMIN
1 IOUT 8V -0.3V
2 DACIN
3.3V
-0.3V
3 LGND
n/a
n/a
4 PHSIN
8V
-0.3V
5 PHSOUT
8V
-0.3V
6 CLKIN
8V
-0.3V
7 PGND
0.3V
-0.3V
8
www.DataSheet4U.9com
GATEL
VCCL
8V -0.3V DC, -5V for
100ns
8V -0.3V
10 BOOST
40V
-0.3V
11 GATEH
40V
12 SW
34V
13
14
15
16
Note:
1.
2.
PSI
CSIN+
CSIN-
EAIN
8V
8V
8V
8V
Maximum GATEH – SW = 8V
Maximum BOOST – GATEH = 8V
-0.3V DC, -5V for
100ns
-0.3V DC, -5V for
100ns
-0.3V
-0.3V
-0.3V
-0.3V
ISOURCE
1mA
1mA
n/a
1mA
2mA
1mA
5A for 100ns,
200mA DC
5A for 100ns,
200mA DC
n/a
1A for 100ns,
100mA DC
3A for 100ns,
100mA DC
3A for 100ns,
100mA DC
1mA
1mA
1mA
1mA
ISINK
1mA
1mA
n/a
1mA
2mA
1mA
n/a
5A for 100ns,
200mA DC
5A for 100ns,
200mA DC
3A for 100ns,
100mA DC
3A for 100ns,
100mA DC
n/a
1mA
1mA
1mA
1mA
Page 2 of 21
V3.02


Part Number IR3506
Description DDR & VTT PHASE
Maker International Rectifier
PDF Download

IR3506 Datasheet PDF






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