LTM4627 15A DC/DC Module Regulator FEATURES DESCRIPTION n Complete 15A Switch Mode Power Supply The LTM 4627 is a complete 15A output high efficiency n Wide Input Voltage Range: 4.5V to 20V switch mode DC/DC power supply. Included in the pack- n 0.6V to 5V Output Range age are the switching controller, power FETs, inductor n 1.5% Total DC Output Error and compensation components. Operating over an input n Differential Remote Sense Amplifier for Precision voltage range from 4.5V to 20V, the LTM4627 supports an Regulation output voltage range of 0.6V to 5V, set by a single external n Current Mode Control/ Fast Transient Response resistor. Only a few input and output capacitors are needed. n Frequency Synchronization Current mode operation allows precision current sharing n Parallel Current Sharing (Up to 60A) of up to four LTM4627 regulators to obtain 60A output. n Selectable Pulse-Skipping or Burst Mode Operation High switching frequency and a current mode architecture n Soft-Start/Voltage Tracking enable a very fast transient response to line and load n Up to 93% Efficiency (12V , 3.3V ) IN OUT changes without sacrificing stability. The device supports n Overcurrent Foldback Protection frequency synchronization, multiphase/current sharing n Output Overvoltage Protection operation, Burst Mode operation and output voltage track- n Small Surface Mount Footprint, Low Profile ing for supply rail sequencing. 15mm 15mm 4.32mm LGA and The LTM4627 is offered in thermally enhanced 15mm 15mm 15mm 4.92mm BGA Packages 15mm 4.32mm LGA and 15mm 15mm 4.92mm BGA APPLICATIONS packages. The LTM4627 is available with SnPb (BGA) or RoHS compliant terminal finish. n Telecom Servers and Networking Equipment L, LT, LTC, LTM, Linear Technology, the Linear logo, Burst Mode, Module and PolyPhase n ATCA and Storage Cards are registered trademarks and LTpowerCAD is a trademark of Linear Technology Corporation. n All other trademarks are the property of their respective owners. Protected by U.S. Patents, Industrial Equipment including 5481178, 5847554, 6580258, 6304066, 6476589, 6774611, 6677210. n Medical Systems TYPICAL APPLICATION 1.2V, 15A DC/DC Module Regulator Efficiency vs Load Current 95 V IN 4.5V TO 16V 22F 90 16V 150pF 85 3 10k V EXTV INTV PGOOD IN CC CC V OUT 80 1.2V 0.1F COMP V OUT 15A + 75 TRACK/SS V 470F OUT LCL LTM4627 6.3V 70 RUN DIFF OUT 100F* 82pF + 6.3V V 65 f SET OSNS 100k MODE PLLIN V 60 OSNS V 12V , 1.2V FB 55 IN OUT SGND GND R ** 5V , 1.2V FB IN OUT 60.4k 50 0 2 4 6 8 10 12 14 16 * SEE TABLE 4 4627 TA01a ** SEE TABLE 1 LOAD CURRENT (A) 4627 TA01b 4627fc 1 For more information www.linear.com/LTM4627 EFFICIENCY (%)LTM4627 ABSOLUTE MAXIMUM RATINGS (Note 1) V ............................................................. 0.3V to 22V INTV Peak Output Current (Note 6) ..................100mA IN CC INTV , V (V 3.3V with Internal Operating Temperature Range (Note 2) .............. CC OUT OUT DIFF AMP), V , PGOOD, EXTV ....... 0.3V to 6V E and I-Grades ................................... 40C to 125C OUT LCL CC MODE PLLIN, f , TRACK/SS, MP-Grade .......................................... 55C to 125C SET + V , V , DIFF OUT ...................0.3V to INTV Storage Temperature Range .................. 55C to 125C OSNS OSNS CC COMP, V ................................................. 0.3V to 2.7V Reofl w (Peak Body) Temperature .......................... 250C FB RUN (Note 5) ............................................... 0.3V to 5V PIN CONFIGURATION TOP VIEW TOP VIEW MODE PLLIN MODE PLLIN INTV TRACK/SS COMP INTV TRACK/SS COMP CC CC V V IN IN 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 A A RUN RUN V B V B IN f IN f SET SET C C INTV INTV CC CC D D E EXTV E EXTV CC CC PGOOD PGOOD F F V V FB FB GND GND G PGOOD G PGOOD H SGND H SGND + + J V J V OSNS OSNS K K DIFF OUT DIFF OUT V V OUT OUT L V L V OUT LCL OUT LCL M M V V OSNS OSNS V V OUT OUT BGA PACKAGE LGA PACKAGE 133-LEAD (15mm 15mm 4.92mm) 133-LEAD (15mm 15mm 4.32mm) T = 125C, = 17.9C/W, = 5.9C/W, = 15C/W, = 6.1C/W, T = 125C, = 16.6C/W, = 4.6C/W, = 15C/W, = 5.1C/W, J(MAX) JA JCbottom JCtop JB J(MAX) JA JCbottom JCtop JB VALUES DETERMINED PER JESD 51-12 USING A JESD 51-9 DEFINED PCB VALUES DETERMINED PER JESD 51-12 USING A JESD 51-9 DEFINED PCB WEIGHT = 2.8g WEIGHT = 2.6g ORDER INFORMATION PART MARKING* PACKAGE MSL TEMPERATURE RANGE PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING (Note 2) LTM4627EV PBF Au (RoHS) LTM4627V e4 LGA 3 40C to 125C LTM4627IV PBF Au (RoHS) LTM4627V e4 LGA 3 40C to 125C LTM4627EY PBF SAC305 (RoHS) LTM4627Y e1 BGA 3 40C to 125C LTM4627IY PBF SAC305 (RoHS) LTM4627Y e1 BGA 3 40C to 125C LTM4627IY SnPb (63/37) LTM4627Y e0 BGA 3 40C to 125C LTM4627MPY PBF SAC305 (RoHS) LTM4627Y e1 BGA 3 55C to 125C LTM4627MPY SnPb (63/37) LTM4627Y e0 BGA 3 55C to 125C Consult Marketing for parts specified with wider operating temperature Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Device temperature grade is indicated by a label on the shipping Procedures: container. Pad or ball finish code is per IPC/JEDEC J-STD-609. www.linear.com/umodule/pcbassembly LGA and BGA Package and T ray Drawings: Terminal Finish Part Marking: www.linear.com/packaging www.linear.com/leadfree 4627fc 2 For more information www.linear.com/LTM4627