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LTM4612 Datasheet(PDF) 1 Page - Linear Technology |
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LTM4612 Datasheet(HTML) 1 Page - Linear Technology |
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1 / 30 page  LTM4613 1 4613fd For more information www.linear.com/LTM4613 PGOOD RUN COMP INTVCC DRVCC fSET TRACK/SS FCB MARG0 MARG1 MPGM VOUT VFB VIN 0.1µF 10µF × 3 22pF COUT VOUT 12V 8A CIN VIN 24V TO 36V PLLIN CLOCK SYNC LTM4613 SGND VD PGND MARGIN CONTROL 51k 5.23k 392k 5% MARGIN 4613 TA01 TYPICAL APPLICATION FEATURES APPLICATIONS DESCRIPTION EN55022B Compliant 36VIN, 15VOUT, 8A, DC/DC µModule Regulator The LTM®4613 is a complete, ultralow noise, 8A switch modeDC/DCpowersupply.Includedinthepackagearethe switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 5V to 36V, the LTM4613 supports an output voltage range of 3.3V to 15V, set by a single external resistor. Only bulk inputandoutputcapacitorsareneededtofinishthedesign. High switching frequency and an adaptive on-time current mode architecture enables a very fast transient response to line and load changes without sacrificing stability. The onboard input filter and noise cancellation circuits achieve low noise coupling, thus effectively reducing the electromagnetic interference (EMI)—see Figure 7. Furthermore, the DC/DC µModule® regulator can be syn- chronized with an external clock to reduce undesirable frequency harmonics and allow PolyPhase® operation for high load currents. The LTM4613 is offered in 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA packages. The LTM4613 is available with SnPb (BGA) or RoHS compli- ant terminal finish. 12V/8A Ultralow Noise µModule with 24V to 36V Input n Complete Low EMI Switch Mode Power Supply n EN55022 Class B Compliant n Wide Input Voltage Range: 5V to 36V n 8A Output Current n 3.3V to 15V Output Voltage Range n Low Input and Output Referred Noise n Output Voltage Tracking and Margining n PLL Frequency Synchronization n 2% Maximum Total DC Error n Power Good Tracks with Margining n Current Foldback Protection n Parallel/Current Sharing n Ultrafast Transient Response n Current Mode Control n Programmable Soft-Start n Output Overvoltage Protection n –55°C to 125°C Operating Temperature Range (LTM4613MPV, LTM4613MPY) n 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA Packages n SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish n Telecom and Networking Equipment n Industrial and Avionic Equipment n RF Systems Radiated Emission Scan with 24VIN to 12VOUT at 8A L , LT, LTC, LTM, µModule, PolyPhase, Linear Technology, and the Linear logo are registered trademarks and LTpowerCAD is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. 70 60 50 40 30 20 10 0 30 226.2 422.4 613.6 FREQUENCY (MHz) 4613 TA01b 814.3 1010.0 –10 EN55022B LIMIT |
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