LTM4662 Dual 15A or Single 30A DC/DC Module Regulator FEATURES DESCRIPTION n Dual 15A or Single 30A Output The LTM 4662 is a complete dual 15A output switching n Wide Input Voltage Range: 4.5V to 20V mode DC/DC power supply. Included in the package are n 2.375V with CPWR Bias the switching controller, power FETs, inductors, and all MIN n Output Voltage Range: 0.6V to 5.5V supporting components. Operating from an input voltage n 1.5% Maximum Total DC Output Error range of 4.5V to 20V, the LTM4662 supports two outputs n Multiphase Current Sharing each with an output voltage range of 0.6V to 5.5V, set by n Differential Remote Sense Amplifier, Each Channel external resistors. Its high efficiency design delivers up to n Current Mode Control/Fast Transient Response 15A continuous current for each output. Only a few input n Up to 96% Efficiency and output capacitors are needed. n Adjustable Switching Frequency (250kHz to 1MHz) The device supports frequency synchronization, multiphase n Frequency Synchronization operation, high efficiency light load operation and output n Overcurrent Foldback Protection voltage tracking for supply rail sequencing and has an n Output Overvoltage Protection onboard temperature diode per channel for device tempera- n Internal or External Compensation ture monitoring. High switching frequency and a current n Built-In Temperature Monitor Diode mode architecture enable a very fast transient response to n SnPb or RoHS Compliant Finish line and load changes without sacrificing stability. n Thermally Enhanced (11.25mm 15mm 5.74mm) Fault protection features include overvoltage and overcur- BGA Package rent protection. The power module is offered in a small n Pin-Compatible with the LTM4646 footprint and thermally enhanced 11.25mm 15mm 5.74mm BGA package. The LTM4662 is available with APPLICATIONS SnPb or RoHS compliant terminal finish. n Point-of-Load Power Supplies All registered trademarks and trademarks are the property of their respective owners. n Telecom and Networking Equipment n Industrial and Medical Equipment TYPICAL APPLICATION V IN Efficiency, 4.5V 10F TO 20V 12V to 0.9V, 1.2V at 15A Each 4 130k V V CPWR INTV VRNG IN1 IN2 CC 95 RUN1 MODE PLLIN RUN2 DRV CC 4.7F 90 V OUT1 V OUT2 0.9V V OUT1 1.2V V OUT2 AT 15A AT 15A V V OUTS2 OUTS1 85 LTM4662 V V FB1 FB2 100F 100F 30.1k 4 121k 60.4k 80 4 V V OUTS1 OUTS2 COMP1A COMP2A 75 COMP1B COMP2B 12V TO 0.9V EFF, 300kHz IN PINS NOT USED IN THIS CIRCUIT: TRACK/SS1 TRACK/SS2 12V TO 1.2V EFF, 350kHz IN FREQ SGND GND PGOOD1, PGOOD2, EXTV , 0.1F CC 0.1F 70 + + TEMP1 , TEMP1 , TEMP2 , TEMP2 4662 TA01a 1 2 3 4 5 6 7 8 9 10 11 12 13 14 15 115k PHASMD, CLKOUT, SW1, SW2 LOAD CURRENT (A) 4662 TA01b Rev. B 1 Document Feedback For more information www.analog.com EFFICIENCY (%)LTM4662 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW 1 2 3 4 5 6 7 8 CPWR, V , V ....................................... 0.3V to 22V IN1 IN2 TEMP2 V , V ................................................... 2V to 22V SW1 SW2 A PGOOD1, PGOOD2, RUN1, RUN2, DRV , V CC IN2 + TEMP2 INTV , EXTV , V , V , V , B CC CC OUT1 OUT2 OUTS1 V OUT2 V ..................................................... 0.3V to 6V GND OUTS2 C TRACK/SS1, TRACK/SS2 ............................. 0.3V to 5V GND SW2 FREQ, VRNG, PHASMD, V VRNG SGND OUTS2 RUN2 D MODE PLLIN ......................... 0.3V to (INTV +0.3) CC EXTV V V CC V (Note 6) ....................................... 0.3V to V COMP2B OUTS2 COMP2A FB2 PGOOD2 OUTS1 FB1 E V , V (Note 6)..............0.3V to (INTV +0.3V) OUTS2 FB1 CC MODE INTV CPWR CC FREQ TRACK/SS2 PLLIN CLKOUT COMP1A, COMP2A (Note 6) ..................... 0.3V to 2.7V F COMP1B, COMP2B, V .......................... 0.3V to 2.7V FB2 DRV V V CC COMP1B OUTS1 COMP1A FB1 PGOOD1 DRV Peak Output Current .................................100mA CC G Internal Operating Temperature PHASMD SGND TRACK/SS1 RUN1 Range (Note 2) H E- and I-Grade ................................... 40C to 125C SW1 V GND OUTS1 MP-Grade .......................................... 55C to 125C J Storage Temperature Range .................. 55C to 125C V OUT1 TEMP1 K Peak Solder Reflow Package Body Temperature .... 245C GND V + IN1 TEMP1 L BGA PACKAGE 88-LEAD (15mm 11.25mm 5.74mm) T = 125C, = 7C/W, = 1.5C/W, JMAX JA JCbottom = 3.7C/W, + 7C/W JCtop JB BA VALUES DEFINED PER JESD51-12 WEIGHT = 2.2g ORDER INFORMATION PART MARKING* PACKAGE MSL TEMPERATURE RANGE PART NUMBER BALL FINISH DEVICE FINISH CODE TYPE RATING (SEE NOTE 2) LTM4662EY PBF LTM4662Y 40C to 125C LTM4662IY PBF SAC305 (RoHS) LTM4662Y e1 40C to 125C LTM4662MPY PBF LTM4662Y BGA 3 55C to 125C LTM4662IY LTM4662Y 40C to 125C SnPb (63/37) e0 LTM4662MPY LTM4662Y 55C to 125C Contact the factory 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. Ball finish code is per IPC/JEDEC J-STD-609. LGA and BGA Package and Tray Drawings Rev. B 2 For more information www.analog.com