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International Rectifier Electronic Components Datasheet

IR3507 Datasheet

PHASE

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IR3507
DATA SHEET
XPHASE3TM PHASE IC
DESCRIPTION
The IR3507 Phase IC combined with an IR XPhase3TM Control IC provides a full featured and flexible way to
implement power solutions for the latest high performance CPUs and ASICs. The “Control” IC provides
overall system control and interfaces with any number of “Phase” ICs which each drive and monitor a single
phase of a multiphase converter. The XPhase3TM architecture results in a power supply that is smaller, less
expensive, and easier to design while providing higher efficiency than conventional approaches.
FEATURES IR3507 PHASE IC
Power State Indicator (PSI) interface provides the capability to maximize the efficiency at light loads.
7V/2A gate drivers (4A GATEL sink current)
Converter output voltage up to 5.1 V (Limited to VCCL-1.4V)
Loss-less inductor current sensing
Feed-forward voltage mode control
Integrated boot-strap synchronous PFET
Only four external components per phase
3 wire analog bus connects Control and Phase ICs (VID, Error Amp, IOUT)
3 wire digital bus for accurate daisy-chain phase timing control without external components
Anti-bias circuitry prevents excessive sag in output voltage during PSI de-assertion
PSI input is ignored during power up
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
Small thermally enhanced 20L 4 X 4mm MLPQ package
RoHS compliant
APPLICATION CIRCUIT
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12V
EAIN
IOUT
PSI
DACIN
PHSIN
PHSOUT
CLKIN
VCCL
Page 1 of 19
1 IOUT
2 PSI
3 DACIN
4 LGND
5 PHSIN
IR3507
SW
GATEH
BOOST
VCCL
NC
15
14
13
12
11
CBST
CVCCL
Figure 1 Application Circuit
RCS
CCS
L
VOUT+
COUT
VOUT-
Jan 09, 2008


International Rectifier Electronic Components Datasheet

IR3507 Datasheet

PHASE

No Preview Available !

IR3507
ORDERING INFORMATION
Part Number
IR3507MTRPBF
* IR3507MPBF
* Samples only
Package
20 Lead MLPQ
(4 x 4 mm body)
20 Lead MLPQ
(4 x 4 mm body)
Order Quantity
3000 per reel
100 piece strips
ABSOLUTE MAXIMUM RATINGS
Stresses beyond those listed under “Absolute Maximum Ratings” 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…………….. 0 to 150oC
Storage Temperature Range………………….-65oC to 150oC
MSL Rating………………………………………2
Reflow Temperature…………………………….260oC
PIN #
1
2
3
4
5
6
7
8
9
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PIN NAME
IOUT
PSI
DACIN
LGND
PHSIN
NC
PHSOUT
CLKIN
PGND
GATEL
VMAX
8V
8V
3.3V
n/a
8V
n/a
8V
8V
0.3V
8V
11 NC
12 VCCL
n/a
8V
13 BOOST
40V
14 GATEH
40V
15 SW
34V
16
17
18
19
20
Note:
1.
2.
VCC
CSIN+
CSIN-
EAIN
NC
34V
8V
8V
8V
n/a
Maximum GATEH – SW = 8V
Maximum BOOST – GATEH = 8V
VMIN
-0.3V
-0.3V
-0.3V
n/a
-0.3V
n/a
-0.3V
-0.3V
-0.3V
-0.3V DC, -5V for
100ns
n/a
-0.3V
-0.3V
-0.3V DC, -5V for
100ns
-0.3V DC, -5V for
100ns
-0.3V
-0.3V
-0.3V
-0.3V
n/a
ISOURCE
1mA
1mA
1mA
n/a
1mA
n/a
2mA
1mA
5A for 100ns,
200mA DC
5A for 100ns,
200mA DC
n/a
n/a
1A for 100ns,
100mA DC
3A for 100ns,
100mA DC
3A for 100ns,
100mA DC
n/a
1mA
1mA
1mA
n/a
ISINK
1mA
1mA
1mA
n/a
1mA
n/a
2mA
1mA
n/a
5A for 100ns,
200mA DC
n/a
5A for 100ns,
200mA DC
3A for 100ns,
100mA DC
3A for 100ns,
100mA DC
n/a
10mA
1mA
1mA
1mA
n/a
Page 2 of 19
Jan 09, 2008


Part Number IR3507
Description PHASE
Maker International Rectifier
PDF Download

IR3507 Datasheet PDF






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