900,000+ datasheet pdf search and download

Datasheet4U offers most rated semiconductors data sheet pdf




International Rectifier Electronic Components Datasheet

IR3529 Datasheet

XPHASE3 PHASE

No Preview Available !

www.DataSheet4U.com
IR3529
DATA SHEET
XPHASE3TM PHASE IC
DESCRIPTION
The IR3529 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.
The IR3529 provides two types of current sense outputs; ILL which contains average power supply current,
information which can be used for voltage positioning and ISHARE which contains average active phase current
information since current sense amplifiers of respective phases are disabled when in power savings mode. Higher
efficiency can be expected due to increased driver capability along with reduced non-overlap durations. Turbo is
included to improve load turn-on response. A SHIFT pin now communicates to the control IC a change in phase
IC on-line status resulting in controlled phase timing during PSI and Phase Shedding. The IR3529 also
implements cycle-by-cycle over current protection to resolve high repetition rate load transients.
FEATURES
Reduced dead time
7V gate drivers (6A GATEL sink current, 4A GATEH sink current)
Turbo Mode load turn-on response enhancement
Programmable cycle-by-cycle over current limit protection
Phase status communicated to control IC for controlled phase timing during PSI and Phase Shedding
Power State Indicator (PSI) interface provides the capability to maximize the efficiency at light loads.
Anti-bias circuitry
Support converter output voltage up to 5.1 V (Limited to VCCL-1.8V)
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
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, Average Power Supply Current)
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
Small thermally enhanced 20L 4 X 4mm MLPQ package
RoHS compliant
Page 1 of 22
February 12, 2010


International Rectifier Electronic Components Datasheet

IR3529 Datasheet

XPHASE3 PHASE

No Preview Available !

APPLICATION CIRCUIT
12V
VCCL
EAIN
ISHARE
ILL
PSI#
DACIN
PHSIN
SHIFT
PHSOUT
CLKIN
1 ILL
2 PSI#
3 DACIN
4 LGND
5 PHSIN
IR3529
SW
GATEH
BOOST
VCCL
OCSET
15
14
13
12
11
ROCSET
COCSET
CBST
CVCCL1
www.DataSheet4U.com
IR3529
RCS
CCS
L
VOUT+
COUT
VOUT-
Figure 1 Single Phase Application Circuit
ORDERING INFORMATION
Part Number
IR3529MTRPBF
* IR3529MPBF
* 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
Page 2 of 22
February 12, 2010


Part Number IR3529
Description XPHASE3 PHASE
Maker International Rectifier
PDF Download

IR3529 Datasheet PDF






Similar Datasheet

1 IR35201 8+0/7+1/6+2 Dual Output Digital Multi-Phase Controller
International Rectifier
2 IR35203 6+1 Dual Output Digital Multi-Phase Controller
International Rectifier
3 IR35204 3+1 Dual Output Digital Multi-Phase Controller
International Rectifier
4 IR3521 XPHASE3 AMD SVID CONTROLLER
International Rectifier
5 IR35211 Dual Output Digital Multi-Phase Controller
International Rectifier
6 IR3522 DDR & VTT CONTROLLER
International Rectifier
7 IR3523 DUAL OUTPUT CONTROLLER
International Rectifier
8 IR3527 Dual Phase
International Rectifier
9 IR3529 XPHASE3 PHASE
International Rectifier





Part Number Start With

0    1    2    3    4    5    6    7    8    9    A    B    C    D    E    F    G    H    I    J    K    L    M    N    O    P    Q    R    S    T    U    V    W    X    Y    Z



Site map

Webmaste! click here

Contact us

Buy Components

Privacy Policy