POWER LOSS (W) LTM4649 10A Step-Down DC/DC Module Regulator FEATURES DESCRIPTION n 10A DC Output Current The LTM 4649 is a complete 10A high efficiency switching n Input Voltage Range: 4.5V to 16V mode step-down DC/DC Module regulator in a 9mm n Output Voltage Range: 0.6V Up to 3.3V 15mm 4.92 BGA package. Included in the package are the n No Heat Sink or Current Derating Up to 85C Ambi- switching controller, power FETs, inductor, and all support ent Temperature components. Operating over an input voltage range of 4.5V n 1.5% Total DC Voltage Output Error to 16V, the LTM4649 supports an output voltage range of n Multiphase Operation with Current Sharing 0.6V to 3.3V, set by a single external resistor. This high n Remote Sense Amplifier efficiency design delivers 10A continuous current. Only n Built-In General Purpose Temperature Monitor bulk input and output capacitors are needed. n Selectable Pulse-Skipping Mode/Burst Mode Opera- High switching frequency and a current mode architecture tion for High Efficiency at Light Load enable a very fast transient response to line and load n Soft-Start/Voltage Tracking changes without sacrificing stability. The device supports n Protection: Output Overvoltage and Overcurrent frequency synchronization, programmable multiphase Foldback operation, and output voltage tracking for supply rail n 9mm 15mm 4.92mm BGA Package sequencing. Fault protection features include output overvoltage and APPLICATIONS overcurrent protection. The LTM4649 is offered in a small 9mm 15mm 4.92mm BGA package available with SnPb n Telecom, Networking and Industrial Equipment or RoHS compliant terminal finish. n Point of Load Regulation L, LT, LTC, LTM, Burst Mode, Module, PolyPhase, Linear Technology and the Linear logo are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their respective owners. Protected by U.S. Patents, including 5481178, 5705919, 5929620, 6100678, 6144194, 6177787, 6304066, 6580258 and 8163643. Other patents pending. TYPICAL APPLICATION 4.5V to 16V Input, 1.5V Output DC/DC Efficiency and Power Loss Current Derating: 12V Input, Module Regulator at 12V and 5V Input 1.5V , No Heat Sink OUT 95 3.0 12 CLKIN FREQ V OUT V IN V V 1.5V IN OUT 90 2.5 10 4.5V TO 16V 22F 10A INTV V CC OUT LCL 100F 16V SW DIFFOUT 6.3V 2 85 2.0 8 2 RUN DIFFP LTM4649 MODE DIFFN 80 1.5 6 PHMODE V FB TRACK/SS COMP 75 1.0 4 6.65k TEMP PGOOD 0.1F GND CLKOUT 400LFM 70 0.5 2 V = 12V 200LFM IN 0LFM V = 5V IN 4649 TA01a 65 0 0 0 2 4 6 8 10 0 20 40 60 80 100 120 4649 TA01b LOAD CURRENT (A) AMBIENT TEMPERATURE (C) 4649 TA01c 4649fc 1 For more information www.linear.com/LTM4649 EFFICIENCY (%) LOAD CURRENT (A)LTM4649 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW A B C D E F G V ............................................................. 0.3V to 18V IN RUN GND V GND IN V .......................................................... 0.3V to 3.6V OUT 1 CLKOUT INTV , PGOOD, RUN .................................. 0.3V to 6V CC 2 NC FREQ CLKIN MODE, CLKIN, TRACK/SS, DIFFP, DIFFN, 3 INTV PHMODE CC DIFFOUT, PHMODE ...............................0.3V to INTV CC 4 MODE TRACK/SS V ............................................................ 0.3V to 2.7V FB 5 COMP (Note 3) .......................................... 0.3V to 2.7V COMP SW TEMP 6 NC V FB INTV Peak Output Current ................................100mA DIFFN CC 7 PGOOD DIFFP Internal Operating Temperature Range 8 DIFFOUT (Note 2) .................................................. 55C to 125C V 9 OUT LCL Storage Temperature Range .................. 55C to 125C 10 Peak Solder Reflow Package Body Temperature ... 245C 11 GND V OUT BGA PACKAGE 68-LEAD (9mm 15mm 4.92mm) = 125C, = 14C/W, = 5C/W, = 20C/W T JMAX JA JCbottom JCtop + = 14C/W, WEIGHT = 1.7g JB BA ORDER INFORMATION