LTM4633 Triple 10A Step-Down DC/DC Module Regulator Fea T Descrip T n Three Independent 10A DC Output Current Regulator The LTM 4633 Module (micromodule) regulator com- Channels bines three complete 10A switching mode DC/DC con- n Input Voltage Range: 4.7V to 16V verters into one small package. Included in the package n 2.375V to 16V with External 5V Bias are the switching controllers, power FETs, inductors, and n V Voltage Range: 0.8V to 1.8V most support components. The LTM4633s three regula- OUT1,2 n V Voltage Range: 0.8V to 5.5V tors operate from 4.7V to 16V input rail(s) or 2.375V to OUT3 n 1.5% Maximum Total DC Output Error 16V with an external 5V bias. The V and V output OUT1 OUT2 n Current Mode Control/Fast Transient Response range is 0.8V to 1.8V, while the V output range is 0.8V OUT3 n Frequency Synchronization to 5.5V. Each output is set by one external resistor. n Output Overvoltage and Overcurrent Protection High switching frequency and a current mode architecture n Multiphase Operation with Current Sharing enable a very fast transient response to line and load on V and V OUT1 OUT2 changes without sacrificing stability. The device supports n General Purpose Temperature Monitors frequency synchronization, multiphase parallel operation n Soft-Start/Voltage Tracking of V and V , soft-start and output voltage tracking OUT1 OUT2 n Power Good Monitors for supply rail sequencing. n 15mm 15mm 5.01mm BGA Package Fault protection features include overvoltage protection, overcurrent protection and temperature monitoring. The a T power module is offered in a space saving, thermally enhanced 15mm 15mm 5.01mm BGA package. The n Telecom, Networking and Industrial Equipment LTM4633 is RoHS compliant with Pb-free finish. n High Density Point of Load Regulation L, LT, LTC, LTM, Module, PolyPhase, Burst Mode, Linear Technology and the Linear logo are registered trademarks and PowerPath and LTpowerCAD are 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, 6580258 and 8163643. Other patents pending. Typical a T 12V Input to 1.0V, 1.5V and 3.3V Output Regulator Efficiency vs Load Current 12V 95 IN 4.7F 10k 10k V V V EXTV INTV FREQ/PLLLPF 6.3V IN1 IN2 IN3 CC CC 90 CNTL PWR PGOOD12 PGOOD3 RUN1 1.0V 13.3k V OUT1 85 RUN2 10A 242k RUN3 V FB1 LTM4633 TK/SS1 1.5V 80 V OUT2 10A TK/SS2 69.8k V FB2 TK/SS3 75 12V , 3.3V OUTPUT IN 3.3V 12V , 1.5V OUTPUT V IN OUT3 10A 12V , 1V OUTPUT 19.1k IN V 70 FB3 MODE/PLLIN GND SGND 0 1 2 3 4 5 6 7 8 9 10 4633 TA01a LOAD CURRENT (A) 4633 TA01b 4633f 1 For more information www.linear.com/LTM4633 EFFICIENCY (%) ion pplica ions pplica ion uresLTM4633 a Te Maxi Mu M r a T p in c F T (Note 1) TOP VIEW CNTL PWR ............................................... 0.3V to 18V FREQ/PLLLPF TKSS2 V V , V , V ........................................... 0.3V to 18V COMP1 FB1 GND TK/SS1 TK/SS3 IN1 IN2 IN3 M PGOOD12 MODE/PLLIN V , V ............................................. 0.3V to 2.2V OUT1 OUT2 V COMP2 FB2 PGOOD3 RUN1 L V ........................................................ 0.3V to 5.5V RUN2 OUT3 EXTV V CC COMP3 SGND FB3 RUN3 K Switch Voltage (SW1, SW2 and SW3) ...........1V to 18V GND GND J MODE/PLLIN, TK/SS1, TK/SS2, TK/SS3, INTV CC CNTL PWR H FREQ/PLLLPF, V , V , V ............0.3V to INTV FB1 FB2 FB3 CC V V V GND GND IN3 IN2 IN1 G COMP1, COMP2, COMP3 (Note 6) ........0.3V to INTV CC F RUN1, RUN2, RUN3, INTV , EXTV , CC CC SW3 SW1 E PGOOD12, PGOOD3 ..................................... 0.3V to 6V SW2 GND D TEMP1, TEMP2 ......................................... 0.3V to 0.8V C INTV Peak Output Current ..................................75mA CC V OUT2 TEMP2 TEMP1 B Operating Junction Temperature Range V V OUT3 OUT1 A (Note 2) .................................................. 55C to 125C 1 2 3 4 5 6 7 8 9 10 11 12 Storage Temperature Range .................. 55C to 125C GND GND BGA PACKAGE 144 LEAD (15mm 15mm 5.01mm) Peak Solder Reflow Body Temperature ................. 245C T = 125C, = 7.5C/W, = 4C/W, = 5C/W JMAX JA JCbottom JCtop DERIVED FROM 95mm 76mm PCB WITH 4-LAYER, WEIGHT = 3.3g JA VALUES DETERMINED PER JESD 51-12 o r Der i n F Ma T LEAD FREE FINISH TRAY PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE (NOTE 2) LTM4633EY PBF LTM4633EY PBF LTM4633Y 144-Lead (15mm 15mm 5.01mm) BGA 40C to 125C LTM4633IY PBF LTM4633IY PBF LTM4633Y 40C to 125C 144-Lead (15mm 15mm 5.01mm) BGA LTM4633MPY PBF LTM4633MPY PBF LTM4633Y 144-Lead (15mm 15mm 5.01mm) BGA 55C to 125C Consult LTC Marketing for parts specified with wider operating temperature ranges. *The temperature grade is identified by a label on the shipping container. For more information on lead free part marking, go to: