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LTM4630A Datasheet(PDF) 1 Page - Linear Technology |
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LTM4630A Datasheet(HTML) 1 Page - Linear Technology |
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1 / 36 page  LTM4650-1 1 46501fc For more information www.linear.com/LTM4650-1 Typical applicaTion DescripTion Dual 25A or Single 50A µModule Regulator with 0.8% DC and 3% Transient Accuracy The LTM®4650-1A/LTM4650-1B is dual 25A or single 50A output step-down µModule® (power module) regulator with ±0.8% (LTM4650-1A) and ±1.5% (LTM4650-1B) total DC output error with ±3% transient output error. Included in the package are the switching controller, power FETs, inductors, and all supporting components. External compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors. With synchronized multiphase parallel current sharing, six LTM4650-1 devices can de- liver up to 300A. The LTM4650-1 is offered in a 16mm × 16mm × 5.01 BGA package, with SnPb (BGA) or RoHS compliant terminal finish. FeaTures applicaTions n ±0.8% Maximum Total DC Output Error Over Line and Load (LTM4650-1A) n ±3% Transient Output Error with Minimum Output Capacitance n Dual 25A or Single 50A Output n 4.5V to 15V Input, 0.6V to 1.8V Output Voltage Range n Differential Remote Sense Amplifier n Current Mode Control/Fast Transient Response n Current Sharing Up to 300A n 16mm × 16mm × 5.01mm BGA Package n FPGA, ASIC, µProcessor Core Voltage Regulation n Information, Communication Systems L , LT, LTC, LTM, Linear Technology, the Linear logo, µModule, Burst Mode, LTpowerCAD and PolyPhase are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5481178, 5705919, 5929620, 6100678, 6144194, 6177787, 6304066 and 6580258. Other patents pending. 50A, 1.0V Output DC/DC µModule Regulator 1.0V Output Efficiency, fSW = 500kHz 25% Load Step Transient Response, ±3% Output Regulation Window. 12VIN, 1.0VOUT, 50A with 6x 220μF Ceramic Cap * 46501 TA01a LTM4650-1 VIN 220µF CERAMIC 4V ×6 68pF VOUT1 VFB1 VFB2 VOUTS2 COMP2 VOUT2 1.0V 50A MODE_PLLIN SGND PHASMD GND COMP1 VOUT2 DIFFP DIFFN DIFFOUT 90.9k 121k VIN 4.5V TO 15V 120k 0.1µF 22µF 25V ×4 4.7µF TEMP RUN1 RUN2 TRACK1 TRACK2 INTVCC PGOOD1 PGOOD2 fSET PINS NOT USED IN THIS CIRCUIT: CLKOUT EXTVCC SW1 SW2 VOUTS1 10k 10nF 3.24k LOAD CURRENT (A) 0 10 20 30 40 50 65 70 75 80 85 90 95 46501 TA01b VIN = 5V VIN = 12V VOUT 20mV/DIV AC-COUPLED LOAD STEP 10A/DIV 50µs/DIV 46501 TA01c 54mV 12.5A STEP *SEE DEMO CIRCUIT DC2479A-B |
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