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LTM4627 Datasheet(PDF) 1 Page - Linear Technology |
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LTM4627 Datasheet(HTML) 1 Page - Linear Technology |
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1 / 32 page  LTM4627 1 4627fc For more information www.linear.com/LTM4627 TYPICAL APPLICATION DESCRIPTION 15A DC/DC µModule Regulator The LTM®4627 is a complete 15A output high efficiency switch mode DC/DC power supply. Included in the pack- age are the switching controller, power FETs, inductor and compensation components. Operating over an input voltage range from 4.5V to 20V, the LTM4627 supports an output voltage range of 0.6V to 5V, set by a single external resistor.Onlyafewinputandoutputcapacitorsareneeded. Current mode operation allows precision current sharing of up to four LTM4627 regulators to obtain 60A output. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, multiphase/current sharing operation, Burst Mode operation and output voltage track- ing for supply rail sequencing. The LTM4627 is offered in thermally enhanced 15mm × 15mm ×4.32mmLGAand15mm×15mm×4.92mmBGA packages. The LTM4627 is available with SnPb (BGA) or RoHS compliant terminal finish. L , LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode, µModule and PolyPhase are registered trademarks and LTpowerCAD is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5481178, 5847554, 6580258, 6304066, 6476589, 6774611, 6677210. 1.2V, 15A DC/DC µModule® Regulator FEATURES APPLICATIONS n Complete 15A Switch Mode Power Supply n Wide Input Voltage Range: 4.5V to 20V n 0.6V to 5V Output Range n ±1.5% Total DC Output Error n Differential Remote Sense Amplifier for Precision Regulation n Current Mode Control/ Fast Transient Response n Frequency Synchronization n Parallel Current Sharing (Up to 60A) n Selectable Pulse-Skipping or Burst Mode® Operation n Soft-Start/Voltage Tracking n Up to 93% Efficiency (12VIN, 3.3VOUT) n Overcurrent Foldback Protection n Output Overvoltage Protection n Small Surface Mount Footprint, Low Profile 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA Packages n Telecom Servers and Networking Equipment n ATCA and Storage Cards n Industrial Equipment n Medical Systems Efficiency vs Load Current COMP TRACK/SS RUN fSET MODE_PLLIN PGOOD VOUT VOUT_LCL DIFF_OUT VOSNS+ VOSNS– VFB LTM4627 VIN 10k RFB** 60.4k 100k 22µF 16V ×3 82pF 0.1µF 470µF 6.3V 100µF* 6.3V VOUT 1.2V 15A INTVCC EXTVCC * SEE TABLE 4 ** SEE TABLE 1 4627 TA01a VIN 4.5V TO 16V SGND GND 150pF + LOAD CURRENT (A) 0 50 55 65 70 75 85 4 8 10 4627 TA01b 60 90 95 80 2 6 12 14 16 12VIN, 1.2VOUT 5VIN, 1.2VOUT |
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Similar Description - LTM4627_15 |
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