LTM8065 40V , 2.5A Silent Switcher IN Module Regulator FEATURES DESCRIPTION n Complete Step-Down Switch Mode Power Supply The LTM 8065 is a 40V , 3.5A peak, 2.5A continuous IN n Low Noise Silent Switcher Architecture step-down Module (power module) regulator. Included in n Wide Input Voltage Range: 3.4V to 40V the package are the switching controller, power switches, n Wide Output Voltage Range: 0.97V to 18V inductor and all support components. Operating over an n 2.5A Continuous Output Current, 3.5A Peak input voltage range of 3.4V to 40V, the LTM8065 supports n Selectable Switching Frequency: 200kHz to 3MHz an output voltage range of 0.97V to 18V and a switching n External Synchronization frequency range of 200kHz to 3MHz, each set by a single n Programmable Soft-Start resistor. Only the input and output filter capacitors are n Tiny, Low Profile 6.25mm 6.25mm 2.32mm needed to finish the design. RoHS Compliant BGA Package The low profile package enables utilization of unused space on the bottom of PC boards for high density point of APPLICATIONS load regulation. The LTM8065 is packaged in a thermally enhanced, compact over-molded ball grid array (BGA) pack- n Automotive Battery Regulation age suitable for automated assembly by standard surface n Power for Portable Products mount equipment. The LTM8065 is RoHS compliant. n Distributed Supply Regulation All registered trademarks and trademarks are the property of their respective owners. n Industrial Supplies n Wall Transformer Regulation TYPICAL APPLICATION Efficiency vs Load Current 95 5V from 7V to 40V Step-Down Converter OUT IN IN V = 12V IN V IN V IN 7V TO 40V BIAS LTM8065 RUN 90 AUX V 2.2F OUT V OUT 5V 2.5A RT 3.5A PEAK 22F 60.4k 41.2k 85 GND SYNC FB 1MHz 8065 TA01a PINS NOT USED IN THIS CIRCUIT: TR/SS, PG 80 0 1 2 3 LOAD CURRENT (A) 8065 TA01b Rev.B 1 Document Feedback For more information www.analog.com EFFICIENCY (%)LTM8065 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Notes 1, 2) V , RUN, PG Voltage .............................................. 42V IN TOP VIEW AUX, V , BIAS Voltage ........................................ 19V OUT BIAS PG GND RT GND GND FB, TR/SS Voltage ..................................................... 4V A SYNC Voltage ............................................................ 6V FB AUX SYNC TR/SS RUN Maximum Internal Temperature .......................... 125C B BANK 2 Storage Temperature ............................ 55C to 125C V IN C Peak Reflow Solder Body Temperature ............... 260C D BANK 1 GND E F BANK 3 V OUT 1 2 3 4 5 6 BGA PACKAGE 36-LEAD (6.25mm 6.25mm 2.32mm) BGA PACKAGE T = 125C, = 21C/W, = 5.9C/W JMAX JA JCbottom = 36.5C/W, = 6.3C/W, WEIGHT = 0.5g JCtop JB VALUES DETERMINED PER JEDEC51-9, 51-12 ORDER INFORMATION PART MARKING* PACKAGE MSL PART NUMBER TERMINAL FINISH DEVICE FINISH CODE TYPE RATING TEMPERATURE RANGE LTM8065EY PBF SAC305 (RoHS) LTM8065 e1 BGA 3 40C to 125C LTM8065IY PBF Contact the factory for parts specified with wider operating temperature Recommended LGA and BGA PCB Assembly and Manufacturing ranges. *Pad or ball finish code is per IPC/JEDEC J-STD-609. Procedures LGA and BGA Package and Tray Drawings Rev.B 2 For more information www.analog.com