LTM8047 3.1V to 32V Isolated IN IN Module DC/DC Converter FEATURES DESCRIPTION n Complete Switch Mode Power Supply The LTM 8047 is an isolated flyback Module DC/DC n 725VDC Isolation converter. The LTM8047 has an isolation rating of 725VDC. n Wide Input Voltage Range: 3.1V to 32V For a similar product with LDO post regulator, see the n Up to 440mA Output Current (V = 2.5V) LTM8048. Included in the package are the switching OUT n 2.5V to 12V Output Voltage controller, power switches, transformer, and all support n Current Mode Control components. Operating over an input voltage range of 3.1V n Programmable Soft-Start to 32V, the LTM8047 supports an output voltage range of n User Configurable Undervoltage Lockout 2.5V to 12V, set by a single resistor. Only output, input, n SnPb or RoHS Compliant Finish and bypass capacitors are needed to finish the design. n Low Profile (11.25mm 9mm 4.92mm) Surface Other components may be used to control the soft-start Mount BGA Package control and biasing. The LTM8047 is packaged in a thermally enhanced, com- APPLICATIONS pact (11.25mm 9mm 4.92mm) over-molded ball grid array (BGA) package suitable for automated assembly by n Industrial Sensors standard surface mount equipment. The LTM8047 is avail- n Industrial Switches able with SnPb (BGA) or RoHS compliant terminal finish. n Ground Loop Mitigation L, LT, LTC, LTM, Linear Technology, the Linear logo and Module are registered trademarks of Linear Technology Corporation. All other trademarks are the property of their respective owners. TYPICAL APPLICATION Maximum Load vs V IN 725V DC Isolated Low Noise Module Regulator 400 LTM8047 V V IN 350 OUT V V IN OUT 3.1V TO 29V 5V 2.2F RUN 280mA 300 (15V ) IN BIAS 4.7F 22F 6.98k 250 ADJ SS 200 GND V OUT 8047 TA01 150 725VDC ISOLATION 100 0 5 10 15 20 25 30 V (V) IN 8047 TA01b 8047fc 1 For more information www.linear.com/LTM8047 ISOLATION BARRIER MAXIMUM V LOAD (mA) OUTLTM8047 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW V , RUN, BIAS ........................................................32V IN ADJ, SS .......................................................................5V A V Relative to V ..............................................16V OUT OUT B (V GND) + (V V ) ...................................36V IN OUT OUT C BIAS Above V ........................................................ 0.1V IN BANK 2 BANK 1 D V V OUT OUT GND to V Isolation (Note 2) ........................725VDC OUT E BANK 4 Maximum Internal Temperature (Note 3) .............. 125C GND BANK 3 F Maximum Solder Temperature .............................. 250C V IN RUN G ADJ H BIAS SS 1 2 3 4 5 6 7 BGA PACKAGE 45-LEAD (11.25mm 9mm 4.92mm) T = 125C, = 16C/W, = 4.1C/W, = 15C/W, = 4C/W JMAX JA JCbottom JCtop JB WEIGHT = 1.1g, VALUES DETERMINED PER JEDEC 51-9, 51-12 ORDER INFORMATION PART NUMBER PAD OR BALL FINISH PART MARKING* PACKAGE MSL TEMPERATURE RANGE TYPE RATING (Note 3) DEVICE CODE LTM8047EY PBF SAC305 (RoHS) LTM8047Y e1 BGA 3 40C to 125C LTM8047IY PBF SAC305 (RoHS) LTM8047Y e1 BGA 3 40C to 125C LTM8047MPY PBF SAC305 (RoHS) LTM8047Y e1 BGA 3 55C to 125C LTM8047MPY SnPb (63/37) LTM8047Y e0 BGA 3 55C 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 www.linear.com/umodule/pcbassembly container. Pad or ball finish code is per IPC/JEDEC J-STD-609. BGA Package and Tray Drawings: Pb-free and Non-Pb-free Part Markings: www.linear.com/packaging www.linear.com/leadfree ELECTRICAL CHARACTERISTICS The l denotes the specifications which apply over the full operating temperature range, otherwise specifications are at T = 25C, RUN = 12V (Note 3). A PARAMETER CONDITIONS MIN TYP MAX UNITS Minimum Input DC Voltage BIAS = V l 3.1 V IN V DC Voltage R = 12.4k 2.5 V OUT ADJ l R = 6.98k 4.75 5 5.25 V ADJ R = 3.16k 12 V ADJ V Quiescent Current V = 0V 1 A IN RUN Not Switching 850 A V Line Regulation 6V V 31V, I = 0.15A 1.7 % OUT IN OUT 8047fc 2 For more information www.linear.com/LTM8047