DC2453A Analog Devices

POWER LOSS (W) LTM4643 Ultrathin Quad Module Regulator with Configurable 3A Output Array FEATURES DESCRIPTION n Quad Output Step-Down Module Regulator with The LTM 4643 is a quad DC/DC step-down Module 3A per Output (power module) regulator with 3A per output. Outputs can n Wide Input Voltage Range: 4V to 20V be paralleled in an array for up to 12A capability. Included n 2.375V to 20V with External Bias in the package are the switching controllers, power FETs, n 0.6V to 3.3V Output Voltage inductors and support components. Operating over an n 3A DC Output Current Each Channel input voltage range of 4V to 20V or 2.375V to 20V with n 1.5% Total Output Voltage Regulation an external bias supply, the LTM4643 supports an output n Current Mode Control, Fast Transient Response voltage range of 0.6V to 3.3V each set by a single external n Parallelable for Higher Output Current resistor. Its high efficiency design delivers 3A continuous n Output Voltage Tracking output current per channel. Only bulk input and output n Internal Temperature Sensing Diode Output capacitors are needed. n External Frequency Synchronization Fault protection features include overvoltage, overcurrent n Overvoltage, Current and Temperature Protection and overtemperature protection. The LTM4643 is offered n 9mm 15mm 1.82mm LGA and 9mm 15mm in a 9mm 15mm 1.82mm LGA and 9mm 15mm 2.42mm BGA Packages 2.42mm BGA packages with SnPb (BGA) or RoHS compli- ant terminal finish. APPLICATIONS Configurable Output Array* n FPGAs, GPUs and ASICs Applications 3A 6A n PCIe and Backside PCB Mounting 3A 9A 12A 3A 3A All registered trademarks and trademarks are the property of their respective owners. 3A 3A 3A * Note 4 TYPICAL APPLICATION 4V to 20V Input, Quad 0.9V, 1V, 1.2V and 1.5V Output DC/DC Module Regulator 1.5V Output Efficiency and Power Loss (Each Channel) CLKIN CLKOUT 95 1.6 4V to 20V V V 1.5V/3A IN1 OUT1 22F SVIN1 FB1 47F 90 1.4 2 4V RUN1 PGOOD1 40.2k 25V LTM4643 85 1.2 V V 1.2V/3A IN2 OUT2 80 1.0 SVIN2 FB2 47F 4V RUN2 PGOOD2 60.4k 75 0.8 V V 1V/3A 70 0.6 IN3 OUT3 SVIN3 FB3 47F 65 0.4 RUN3 PGOOD3 90.9k 4V 60 V = 5V 0.2 IN V V 0.9V/3A V = 12V IN4 OUT4 IN SVIN4 FB4 55 0.0 47F 0 0.5 1 1.5 2 2.5 3 RUN4 PGOOD4 121k 4V LOAD CURRENT (A) TEMP SGND GND 4643 TA01b 4643 TA01a NOT ALL PINS ARE SHOWN Rev D 1 Document Feedback For more information www.analog.com EFFICIENCY (%)LTM4643 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW V , SV (Per Channel) .............................. 0.3V to 22V V TRACK/SS1 IN IN IN1 1 2 3 4 5 6 7 V (Per Channel) (Note 3) ............0.3V to SV or 6V OUT IN VOUT1 GND FB1 RUN (Per Channel) ..................................... 0.3V to 22V A SV IN1 GND MODE1 INTV (Per Channel) ............................... 0.3V to 3.6V CC B COMP1 RUN1 PGOOD, MODE, TRACK/SS, CLKIN C V PGOOD2 PGOOD1 INTV OUT2 CC1 TRACK/SS2 FB (Per Channel) ...................................0.3V to INTV CC D FB2 SV IN2 GND CLKOUT (Note 3), CLKIN .......................0.3V to INTV CC MODE2 COMP2 E Internal Operating Temperature Range V IN2 RUN2 SGND F (Notes 2, 5) ............................................ 40C to 125C V PGOOD3 TEMP INTVCC2 OUT3 TRACK/SS3 G FB3 Storage Temperature Range .................. 65C to 150C SV IN3 GND MODE3 COMP3 H Peak Solder Reflow Body Temperature .................260C V IN3 INTV RUN3 CC3 FB4 J V PGOOD4 CLKOUT OUT4 TRACK/SS4 RUN4 K INTV GND CC4 L COMP4 V IN4 SV MODE4 IN4 LGA PACKAGE (WEIGHT = 0.70g) 77-LEAD (9mm 15mm 1.82mm) BGA PACKAGE (WEIGHT = 0.83g) 77-LEAD (9mm 15mm 2.42mm) T = 125C, = 17C/W, = 2.75C/W, JMAX JCtop JCbottom + = 11C/W, = 10C/W JB BA JA VALUES PER JESD 51-12 ORDER INFORMATION PART MARKING* PACKAGE MSL TEMPERATURE RANGE PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING (SEE NOTE 2) LTM4643EV PBF Au (RoHS) LTM4643V e4 LGA 3 40C to 125C LTM4643IV PBF Au (RoHS) LTM4643V e4 LGA 3 40C to 125C LTM4643MPV PBF Au (RoHS) LTM4643V e4 LGA 3 55C to 125C LTM4643EY PBF SAC305 (RoHS) LTM4643Y e1 BGA 3 40C to 125C LTM4643IY PBF SAC305 (RoHS) LTM4643Y e1 BGA 3 40C to 125C LTM4643MPY PBF SAC305 (RoHS) LTM4643Y e1 BGA 3 55C to 125C LTM4643IY SnPb (63/37) LTM4643Y e0 BGA 3 40C to 125C LTM4643MPY SnPb (63/37) LTM4643Y e0 BGA 3 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. Pad or ball finish code is per IPC/JEDEC J-STD-609. LGA and BGA Package and Tray Drawings Rev D 2 For more information www.analog.com