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IR3507Z

Description
XPHASE3TM PHASE IC
File Size472KB,19 Pages
ManufacturerInternational Rectifier ( Infineon )
Websitehttp://www.irf.com/
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IR3507Z Overview

XPHASE3TM PHASE IC

IR3507Z
DATA SHEET
XPHASE3
TM
PHASE IC
DESCRIPTION
The IR3507Z Phase IC combined with an IR
XPhase3
TM
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
XPhase3
TM
architecture results in a power supply that is smaller, less
expensive, and easier to design while providing higher efficiency than conventional approaches.
FEATURES IR3507Z 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
Figure 1 Application Circuit
Page 1 of 19
IR Confidential
April 2, 2009

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Description XPHASE3TM PHASE IC XPHASE3TM PHASE IC XPHASE3TM PHASE IC
Is it lead-free? - Lead free Lead free
Is it Rohs certified? - conform to conform to
Maker - International Rectifier ( Infineon ) International Rectifier ( Infineon )
Parts packaging code - QFN QFN
package instruction - HVQCCN, LCC20,.16SQ,20 HVQCCN,
Contacts - 20 20
Reach Compliance Code - compli compli
Analog Integrated Circuits - Other Types - ANALOG CIRCUIT ANALOG CIRCUIT
JESD-30 code - S-XQCC-N20 S-XQCC-N20
JESD-609 code - e3 e3
length - 4 mm 4 mm
Humidity sensitivity level - 2 2
Number of functions - 1 1
Number of terminals - 20 20
Package body material - UNSPECIFIED UNSPECIFIED
encapsulated code - HVQCCN HVQCCN
Package shape - SQUARE SQUARE
Package form - CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE CHIP CARRIER, HEAT SINK/SLUG, VERY THIN PROFILE
Peak Reflow Temperature (Celsius) - 260 260
Maximum seat height - 0.9 mm 0.9 mm
Maximum supply voltage (Vsup) - 28 V 28 V
Minimum supply voltage (Vsup) - 8 V 8 V
Nominal supply voltage (Vsup) - 12 V 12 V
surface mount - YES YES
Terminal surface - MATTE TIN MATTE TIN
Terminal form - NO LEAD NO LEAD
Terminal pitch - 0.5 mm 0.5 mm
Terminal location - QUAD QUAD
Maximum time at peak reflow temperature - 30 30
width - 4 mm 4 mm
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