LTM8073 60V , 3A Silent Switcher IN Module Regulator Fea T Descrip T n Complete Step-Down Switch Mode Power Supply The LTM 8073 is a 60V , 3A (continuous) or 5A (peak) IN n Low Noise Silent Switcher Architecture step-down Silent Switcher Module (power module) n Wide Input Voltage Range: 3.4V to 60V regulator. Included in the package are the switching con- n Wide Output Voltage Range: 0.8V to 15V troller, power switches, inductor, and all support compo- n 3A Continuous Output Current, 24V , 5V , nents. Operating over an input voltage range of 3.4V to IN OUT T =85C 60V, the LTM8073 supports an output voltage range of A n Up to 5A Peak Current 0.8V to 15V and a switching frequency range of 200kHz n Parallelable for Increased Output Current to 3MHz, each set by a single resistor. Only the input and n Selectable Switching Frequency: 200kHz to 3MHz output filter capacitors are needed to finish the design. n Programmable Soft-Start The low profile package enables utilization of unused n 6.25mm 9mm 3.32mm BGA Package space on the bottom of PC boards for high density point of load regulation. The LTM8073 is packaged in a thermally a T enhanced, compact over-molded ball grid array (BGA) n package suitable for automated assembly by standard sur- Power for Portable Products n face mount equipment. The LTM8073 is RoHS compliant. Distributed Supply Regulation n Industrial Supplies L, LT, LTC, LTM, Module, Burst Mode, Silent Switcher, Linear Technology and the Linear logo are registered trademarks of Analog Devices, Inc. All other trademarks are the property of their n Wall Transformer Regulation respective owners. Typical a T 5V from 7V to 60V Step-Down Converter OUT IN IN Efficiency, V = 5V, BIAS = 5V OUT BIAS = 5V 95 LTM8073 V = 24V V IN V IN IN 7V TO 60V BIAS RUN AUX 1F V V OUT OUT 5V 90 3A RT 100F 32.4k 47.5k 1.2MHz FB GND SYNC 8073 TA01a 85 PINS NOT USED IN THIS CIRCUIT: TR/SS, PG, SHARE 80 0 1 2 3 LOAD CURRENT (A) 8073 TA01 8073fa 1 For more information www.linear.com/LTM8073 EFFICIENCY (%) ion pplica ions pplica ion uresLTM8073 a Te Maxi Mu M r a T p in c F T (Notes 1, 2) TOP VIEW V , RUN Voltage ......................................................65V IN PG Voltage ................................................................42V RUN BANK 2 V GND IN AUX, V , BIAS Voltage ..........................................19V OUT 6 FB, TR/SS Voltage.......................................................4V RT TR/SS 5 SYNC Voltage ..............................................................6V SHARE SYNC BANK 1 BANK 3 Maximum Internal Temperature (Note 4) .............. 125C 4 PG GND V OUT Storage Temperature.............................. 55C to 125C 3 AUX Peak Solder Reflow (Package Body) Temperature ..250C BIAS 2 GND FB 1 A B C D E F G H 48-LEAD (9mm 6.25mm 3.32mm) BGA PACKAGE T = 125C, = 23.6C/W, = 4.4C/W, JMAX JA JCbottom = 11.3C/W, = 2.8C/W, WEIGHT = 0.5g JCtop JB VALUES DETERMINED PER JEDEC 51-9, 51-12