LTM4620 Dual 13A or Single 26A DC/DC Module Regulator FEATURES DESCRIPTION n The LTM 4620 is a complete dual 13A output switching Complete Standalone Dual Output Power Supply n mode DC/DC power supply. Included in the package are Dual 13A or Single 26A Output n the switching controller, power FETs, inductors, and all Wide Input Voltage Range: 4.5V to 16V n supporting components. Operating from an input voltage Output Voltage Range: 0.6V to 2.5V n range of 4.5V to 16V, the LTM4620 supports two outputs 1.5% Maximum Total DC Output Error n each with an output voltage range of 0.6V to 2.5V, set by a Multiphase Current Sharing with Multiple single external resistor. Its high efficiency design delivers LTM4620s Up to 100A n up to 13A continuous current for each output. Only a few Differential Remote Sense Amplifier input and output capacitors are needed. n Current Mode Control/Fast Transient Response n Adjustable Switching Frequency The device supports frequency synchronization, multi- n Overcurrent Foldback Protection phase operation, Burst Mode operation and output voltage n Frequency Synchronization tracking for supply rail sequencing and has an onboard n Internal Temperature Monitor temperature diode for device temperature monitoring. n Output Overvoltage Protection High switching frequency and a current mode architec- n SnPb or RoHS Compliant Finish ture enable a very fast transient response to line and load n Thermally Enhanced (15mm 15mm 4.41mm) LGA changes without sacrificing stability. Package and (15mm 15mm 5.01mm) BGA Package Fault protection features include overvoltage and overcurrent protection. The power module is offered in a proprietary space saving and thermally APPLICATIONS enhanced 15mm 15mm 4.41mm LGA pack- n Telecom and Networking Equipment age and 15mm 15mm 5.01mm BGA package, n Storage and ATCA Cards with integrated top-side heat sink. The LTM4620 is avail- n Industrial Equipment able with SnPb (BGA) or RoHS compliant terminal finish. L, LT, LTC, LTM, Linear Technology, the Linear logo, Module, Burst Mode, LTpowerCAD and PolyPhase are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their respective owners. Click to view associated TechClip Videos. TYPICAL APPLICATION 26A, 1.2V Output DC/DC Module Regulator INTV CC 1.2V Efficiency vs I OUT 4.7F 5k PGOOD MODE PLLIN CLKOUT INTV EXTV PGOOD1 90 CC CC V 4.5V TO 16V V V IN IN OUT1 + 22F 100F 470F 10k* 120k V 4 OUTS1 80 6.3V 6.3V 25V DIFFOUT TEMP SW1 RUN1 70 V FB1 RUN2 LTM4620 V FB2 TRACK1 60.4k 60 COMP1 5.1V* TRACK2 COMP2 0.1F f 50 SET V OUTS2 5V /500kHz IN V OUT PHASMD V OUT2 12V /500kHz IN 1.2V AT 26A + 40 121k 100F SW2 470F 0 2 4 6 8 10 12 14 16 18 20 22 24 26 6.3V 6.3V PGOOD2 OUTPUT CURRENT (A) SGND GND DIFFP DIFFN 4620 TA01b * PULL-UP RESISTOR AND PGOOD ZENER ARE OPTIONAL 4620 TA01a 4620fc 1 For more information www.linear.com/LTM4620 EFFICIENCY (%)LTM4620 ABSOLUTE MAXIMUM RATINGS (Note 1) V (Note 8) .................................................0.3V to 18V DIFFP, DIFFN ......................................... 0.3V to INTV IN CC V , V ....................................................1V to 18V COMP1, COMP2, V , V (Note 6) ........ 0.3V to 2.7V SW1 SW2 FB1 FB2 PGOOD1, PGOOD2, RUN1, RUN2, INTV Peak Output Current ................................100mA CC INTV , EXTV .......................................... 0.3V to 6V Internal Operating Temperature Range (Note 2) CC CC MODE PLLIN, f , TRACK1, TRACK2, E- and I-Grade ................................... 40C to 125C SET DIFFOUT, PHASMD ............................... 0.3V to INTV MP-Grade .......................................... 55C to 125C CC V , V , V , V ..................... 0.3V to 6V Storage Temperature Range .................. 55C to 125C OUT1 OUT2 OUTS1 OUTS2 Peak Package Body Temperature .......................... 245C PIN CONFIGURATION TOP VIEW TOP VIEW TEMP EXTV TEMP EXTV CC CC M M L L V V IN IN K K J J INTV INTV H H CC CC CLKOUT CLKOUT SW2 SW2 SW1 SW1 G PGOOD1 G PGOOD1 PGOOD2 PGOOD2 PHASMD RUN1 SGND PHASMD RUN1 SGND RUN2 RUN2 F F MODE PLLIN MODE PLLIN DIFFOUT DIFFOUT GND COMP1 COMP2 GND COMP1 COMP2 DIFFP DIFFP E E DIFFN DIFFN TRACK1 TRACK1 V TRACK2 GND V TRACK2 GND SGND FB2 SGND FB2 V V FB1 FB1 D D V V f f OUTS2 SET SGND OUTS2 SET SGND C C V V OUTS1 OUTS1 B B V V V V OUT1 OUT1 GND OUT2 GND OUT2 A A 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 LGA PACKAGE BGA PACKAGE 144-LEAD (15mm 15mm 4.41mm) 144-LEAD (15mm 15mm 5.01mm) T = 125C, = 7C/W, = 1.5C/W, T = 125C, = 7C/W, = 1.5C/W, JMAX JA JCbottom JMAX JA JCbottom = 3.7C/W, + 7C/W = 3.7C/W, + 7C/W JCtop JB BA JCtop JB BA VALUES DEFINED PER JESD 51-12 VALUES DEFINED PER JESD 51-12 WEIGHT = 3.037g WEIGHT = 3.232g