LTM4626 20V , 12A Step-Down DC/DC IN Module Regulator FEATURES DESCRIPTION 2 n Complete Solution in <1cm (Single-Sided PCB) or The LTM 4626 is a complete 12A step-down switching 2 0.5cm (Dual-Sided PCB) mode Module (micromodule) regulator in a tiny 6.25mm n 6.25mm 6.25mm 3.87mm BGA Package 6.25mm 3.87mm BGA package. Included in the pack- n Wide Input Voltage Range: 3.1V to 20V age are the switching controller, power FETs, inductor and n 0.6V to 5.5V Output Voltage support components. Operating over an input voltage n 12A DC Output Current range of 3.1V to 20V, the LTM4626 supports an output n 1.5% Maximum Total DC Output Voltage Error voltage range of 0.6V to 5.5V, set by a single external Over Line, Load and Temperature resistor. Its high efficiency design delivers up to 12A n Differential Remote Sensing Amp continuous output current. Only bulk input and output n Current Mode Control, Fast Transient Response capacitors are needed. The LTM4626 product video is n External Frequency Synchronization available on website. n Multiphase Parallel Current Sharing with The LTM4626 supports selectable discontinuous mode MultipleLTM4626s operation and output voltage tracking for supply rail n Output Voltage Tracking sequencing. Its high switching frequency and current n Selectable Discontinuous Mode mode control enable a very fast transient response to n Power Good Indicator line and load changes without sacrificing stability. n Overvoltage, Overcurrent and Overtemperature Fault protection features include overvoltage, overcurrent Protection and overtemperature protection. APPLICATIONS The LTM4626 is available with SnPb or RoHS compliant terminal finish. n Telecom, Datacom, Networking and All registered trademarks and trademarks are the property of their respective owners. Industrial Equipment n Medical Diagnostic Equipment Click to view associated Video Design Idea. n Data Storage Rack Units and Cards n Test and Debug Systems TYPICAL APPLICATION 1.0V Output Efficiency vs Load Current 95 12A, 1.0V Output DC/DC Module Step-Down Regulator 90 FREQ CLKOUT V OUT V IN 85 V V 1.0V OUT IN 3.1V TO 20V 100F 22F + 12A V RUN OSNS 6.3V 25V LTM4626 80 2 INTV CC MODE/CLKIN 75 PHMODE 33pF TRACK/SS FB 70 0.1F 5V IN PGOOD COMPa 12V 90.9k IN COMPb 65 0 2 4 6 8 10 12 GND V OSNS LOAD CURRENT (A) 4626 TA01b 4626 TA01a Rev B 1 Document Feedback For more information www.analog.com EFFICIENCY (%)LTM4626 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) (See Pin Functions, Pin Configuration Table) V ............................................................. 0.3V to 22V IN TOP VIEW SW V ............................................................. 0.3V to 6V OUT T SENSE INTV ...................................................... 0.3V to 3.6V 7 CC T + GND SENSE RUN ............................................................ 0.3V to V IN 6 PGOOD PGOOD, FREQ, COMPa, COMPb, V OUT PHMODE 5 PHMODE, CLKOUT, FB .............................. 0.3V to 3.6V RUN 4 V IN MODE/CLKIN, TRACK/SS .....................0.3V to INTV CC INTV CC + V 3 OUT V ......................................................... 0.3V to 6V OSNS MODE/CLKIN V OSNS TRACK/SS V ...................................................... 0.3V to 0.3V 2 OSNS V + CLKOUT OSNS Internal Operating Temperature Range 1 FB COMPb (Notes 2, 5) ............................................ 40C to 125C COMPa FREQ A B C D E F G Storage Temperature Range .................. 55C to 125C BGA PACKAGE 49-LEAD (6.25mm 6.25mm 3.87mm) Peak Solder Reflow Body Temperature ................. 250C T = 125C, = 9.3C/W, = 4.3C/W, = 16C/W, JMAX JCtop JCbottom JA NOTE: 1) VALUES ARE DETERMINED BY SIMULATION PER JESD51 CONDITIONS, WEIGHT 497mg 2) VALUE IS OBTAINED WITH DEMO BOARD JA 3) REFER TO PAGES 19, 20 FOR LAB MEASUREMENT AND DE-RATING INFORMATION ORDER INFORMATION PART NUMBER PAD OR BALL FINISH PART MARKING* PACKAGE MSL TEMPERATURE RANGE TYPE RATING (Note 2) DEVICE FINISH CODE LTM4626EY PBF SAC305 (RoHS) 4626 e1 BGA 3 40C to 125C LTM4626IY PBF SAC305 (RoHS) 4626 e1 BGA 3 40C to 125C LTM4626IY SnPb 4626 e0 BGA 3 40C to 125C Consult Marketing for parts specified with wider operating temperature Recommended LGA and BGA PCB Assembly and Manufacturing Procedures ranges. *Device temperature grade is indicated by a label on the shipping container. Pad or ball finish code is per IPC/JEDEC J-STD-609. LGA and BGA Package and Tray Drawings ELECTRICAL CHARACTERISTICSThe l denotes the specifications which apply over the specified internal operating temperature range (Note 2), otherwise specifications are at T = 25C. V = 12V per the typical application shown on the A IN front page. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS Switching Regulator Section: per Channel V Input DC Voltage V l 3.1 20 V IN IN l V Output Voltage Range 0.6 5.5 V OUT V Output Voltage, Total C = 22F, C = 100F Ceramic, R = 40.2k, OUT(DC) IN OUT FB Variation with Line and Load V = 3.1V to 12V, I = 0A to 12A (Note 3) IN OUT (Note 6) 40C to 125C l 1.477 1.50 1.523 V V RUN Pin On Threshold V Rising 1.1 1.25 1.35 V RUN RUN Rev B 2 For more information www.analog.com