LTM8071 60V , 5A Silent Switcher IN Module Regulator FEATURES DESCRIPTION n Complete Step-Down Switch Mode Power Supply The LTM 8071 is a 60V , 5A (continuous) step-down IN n Low Noise Silent Switcher Architecture Silent Switcher Module (power module) regulator. n CISPR22 Class B Compliant The Silent Switcher architecture minimizes EMI while n Wide Input Voltage Range: 3.6V to 60V delivering high efficiency at frequencies up to 2.2MHz. n Wide Output Voltage Range: 0.97V to 15V Included in the package are the switching controller, n 5A Continuous Output Current at 24 , power switches, inductor, and all support components. IN 3.3V , T = 85C Operating over an input voltage range of 3.6V to 60V, OUT A n 7.25A Peak Current at 12V , 3.3V the LTM8071 supports an output voltage range of 0.97V IN OUT n Parallelable for Increased Output Current to 15V and a switching frequency range of 200kHz to n Selectable Switching Frequency: 200kHz to 2.2MHz 2.2MHz, each set by a single resistor. Only the input and n Programmable Soft-Start output filter capacitors are needed to finish the design. n 9mm 11.25mm 3.32mm RoHS Compliant The LTM8071 is packaged in a compact over-molded BGAPackage ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The APPLICATIONS LTM8071 is available with SnPb (BGA) or RoHS compliant terminalfinish. n Test and Measurement Equipment All registered trademarks and trademarks are the property of their respective owners. n Aviation n Distributed Supply Regulation n Industrial Supplies n Wall Transformer Regulation TYPICAL APPLICATION Efficiency, V = 3.3V, BIAS = 3.3V 3.3V from 4.5V to 60V Step-Down Converter OUT OUT IN IN 95 LTM8071 V V IN IN 4.5V TO 60V BIAS 85 RUN AUX 1F V OUT V OUT 75 3.3V RT 100F 66.5k 102k 65 650kHz FB GND SYNC 8071 TA01a 12V IN 55 24V IN 36V IN PINS NOT USED IN THIS CIRCUIT: TR/SS, PG, SHARE 48V IN 45 0 1 2 3 4 5 LOAD CURRENT (A) 8071 TA01b Rev. B 1 Document Feedback For more information www.analog.com EFFICIENCY (%)LTM8071 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2, 4) TOP VIEW V , RUN Voltage ......................................................65V IN GND RT RUN PG Voltage ................................................................42V A AUX, V , BIAS Voltage ..........................................19V OUT TR/SS BANK 2 B FB, TR/SS Voltage.......................................................4V SYNC PG SHARE V IN SYNC Voltage ..............................................................6V C FB Maximum Internal Temperature ............................ 125C D AUX Storage Temperature.............................. 50C to 125C E BIAS BANK 1 Peak Reflow Solder Body Temperature ................. 250C F GND G H J BANK 3 V OUT K 1 2 3 4 5 6 7 8 BGA PACKAGE 80-LEAD (11.25mm 9mm 3.32mm) T = 125C, = 18C/W, = 3.4C/W, JMAX JA JCbottom = 8.4C/W, = 2.8C/W, WEIGHT = 1.0g JCtop JB VALUES DETERMINED PER JESD 51-9, 51-12 ORDER INFORMATION PART MARKING* PACKAGE MSL PART NUMBER TERMINAL FINISH DEVICE FINISH CODE TYPE RATING TEMPERATURE RANGE (NOTE 3, 4) LTM8071EY PBF SAC305 (RoHS) e1 LTM8071IY PBF LTM8071 BGA 3 40C to 125C LTM8071IY SnPb (63/37) e0 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 Procedures shipping container. Pad or 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