LTM8068 3V to 40V Isolated Module DC/DC IN IN Converter with LDO Post Regulator FEATURES DESCRIPTION n 2kVAC Isolated Module Converter The LTM 8068 is a 2kVAC isolated flyback Module n UL60950 Recognized File E464570 (power module) DC/DC converter with LDO post regula- n Wide Input Voltage Range: 3V to 40V tor. Included in the package are the switching controller, n V Output: power switches, transformer, LDO, and all support com- OUT1 n Up to 450mA (V =24V V =5V) ponents. Operating over an input voltage range of 3V to IN , OUT1 n 2.5V to 18V Output Range 40V, the LTM8068 supports an output voltage range of n V Low Noise Linear Post Regulator: 2.5V to 18V, set by a single resistor. There is also a linear OUT2 n Up to 300mA post regulator whose output voltage is adjustable from n 1.2V to 18V Output Range 1.2V to 18V as set by a single resistor. Only output and n Current Mode Control input capacitors are needed to finish the design. n User Configurable Undervoltage Lockout The LTM8068 is packaged in a thermally enhanced, com- n Low Profile (9mm 11.25mm 4.92mm) pact (9mm 11.25mm 4.92mm) overmolded ball grid BGA Package array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8068 is available with SnPb or RoHS compliant terminal finish. APPLICATIONS All registered trademarks and trademarks are the property of their respective owners. n Industrial Sensors n Industrial Switches n Ground Loop Mitigation TYPICAL APPLICATION 2kVAC Isolated Low Noise Module Regulator Total Output Current vs V IN 350 V V (5.6V) V IN OUT1 IN 3V TO 38V 22F V V OUT2 OUT2 RUN 5V LOW 250 300mA MAX 2.2F FB2 NOISE LDO 10F 162k V OUTN 150 FB1 7.32k LTM8068 GND 8068 TA01a 50 PIN BYP IS NOT USED IN THIS SCHEMATIC 0 9 18 27 36 V (V) IN 8068 TA01 Rev. C 1 Document Feedback For more information www.analog.com LOAD CURRENT (mA)LTM8068 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW V , RUN ..................................................................42V IN V Relative to V ............................................25V OUT1 OUTN A FB2 V + V (Note 2) .................................................45V IN OUT1 B V Relative to V ..........................................+20V OUT2 OUTN BANK 3 BANK 2 BANK 1 C BYP V V V FB2 Relative to V ...............................................+7V OUT2 OUTN OUT1 OUTN D GND to V Isolation (Note 3) ...........................2kVAC OUTN E Maximum Internal Temperature (Note 4) .............. 125C BANK 4 GND BANK 5 F Maximum Peak Body Reflow Temperature ........... 245C V IN RUN G FB1 Storage Temperature.............................. 55C to 125C H 1 2 3 4 5 6 7 BGA PACKAGE 38-LEAD (11.25mm 9mm 4.92mm) T = 125C, = 18.2C/W, = 4.8C/W, = 18.1C/W, = 4.8C/W JMAX JA JCbottom JCtop JB WEIGHT = 1.1g, VALUES DETERMINED PER JESD 51-9, 51-12 ORDER INFORMATION PART MARKING PACKAGE MSL TEMPERATURE RANGE PART NUMBER PAD OR BALL FINISH DEVICE FINISH CODE TYPE RATING (Note 4) LTM8068EY PBF SAC305 (RoHS) LTM8068Y e1 BGA 3 40C to 125C LTM8068IY PBF SAC305 (RoHS) LTM8068Y e1 BGA 3 40C to 125C LTM8068IY SnPb (63/37) LTM8068Y e0 BGA 3 40C to 125C Contact the factory for parts specified with wider operating temperature ranges. Recommended LGA and BGA PCB Assembly and Manufacturing Procedures Device temperature grade is indicated by a label on the shipping container. LGA and BGA Package and Tray Drawings Pad or ball finish code is per IPC/JEDEC J-STD-609. Rev. C 2 For more information www.analog.com