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LTM4643 Datasheet(PDF) 1 Page - Analog Devices |
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LTM4643 Datasheet(HTML) 1 Page - Analog Devices |
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1 / 30 page  LTM4638 1 Rev. C For more information www.analog.com TYPICAL APPLICATION FEATURES DESCRIPTION 20VIN, 15A Step-Down DC/DC µModule Regulator The LTM®4638 is a complete 15A step-down switch- ing mode µModule (power module) regulator in a tiny 6.25mm × 6.25mm × 5.02mm BGA package. Included in the package are the switching controller, power FETs, inductor and support components. Operating over an input voltage range of 3.1V to 20V, the LTM4638 sup- ports an output voltage range of 0.6V to 5.5V, set by a single external resistor. Its high efficiency design delivers up to 15A continuous output current. Only bulk input and outputcapacitorsareneeded.TheLTM4638productvideo is available on the website. The LTM4638 supports selectable discontinuous mode operation and output voltage tracking for supply rail se- quencing. Its high switching frequency and current mode control enable a very fast transient response to line and load changes without sacrificing stability. Fault protection features include overvoltage, overcurrent and overtemperature protection. The LTM4638 is available with SnPb or RoHS compliant terminal finish. 15A, 1.0V Output DC/DC µModule® Step-Down Regulator 1.0V Output Efficiency vs Load Current APPLICATIONS n Complete Solution in <1cm2 (Single-Sided PCB) or 0.5cm2 (Dual-Sided PCB) n 6.25mm × 6.25mm × 5.02mm BGA Package n Wide Input Voltage Range: 3.1V to 20V n 0.6V to 5.5V Output Voltage n 15A DC Output Current n ±1.5% Maximum Total DC Output Voltage Error Over Line, Load and Temperature n Differential Remote Sensing Amp n Current Mode Control, Fast Transient Response n External Frequency Synchronization n Multiphase Parallel Current Sharing with Multiple LTM4638s n Output Voltage Tracking n Selectable Discontinuous Mode n Power Good Indicator n Overvoltage, Overcurrent and Overtemperature Protection n Telecom, Datacom, Networking and Industrial Equipment n Medical Diagnostic Equipment n Data Storage Rack Units and Cards n Test and Debug Systems All registered trademarks and trademarks are the property of their respective owners. 90.9k 4638 TA01a 22µF 25V VIN 3.1V TO 20V VOUT 1.0V 15A 100µF 6.3V x2 0.1µF VIN RUN INTVCC MODE/CLKIN TRACK/SS FREQ VOUT VOSNS+ PHMODE CLKOUT PGOOD COMPa COMPb FB GND LTM4638 VOSNS– LOAD CURRENT (A) 0 80 85 90 15 4638 TA01b 75 3 6 9 12 70 95 VIN = 5V, 600kHz VIN = 12V, 600kHz Document Feedback Click to view associated Video Design Idea. |
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