LTM8048 3.1V to 32V Isolated IN IN Module DC/DC Converter with LDO Post Regulator FEATURES DESCRIPTION n Complete Switch Mode Power Supply The LTM 8048 is an isolated flyback Module DC/DC n 725VDC Isolation converter with LDO post regulator. The LTM8048 has an n Wide Input Voltage Range: 3.1V to 32V isolation rating of 725VDC. Included in the package are n V Output: the switching controller, power switches, transformer, and OUT1 Up to 440mA (V = 2.5V, 24V ) all support components. Operating over an input voltage OUT1 IN 2.5V to 13V Output Range range of 3.1V to 32V, the LTM8048 supports an output n V Low Noise Linear Post Regulator: voltage range of 2.5V to 13V, set by a single resistor. There OUT2 Up to 300mA is also a linear post regulator whose output voltage is ad- 1.2V to 12V Output Range justable from 1.2V to 12V as set by a single resistor. Only n Current Mode Control output, input, and bypass capacitors are needed to finish n Programmable Soft-Start the design. Other components may be used to control the n User Configurable Undervoltage Lockout soft-start control and biasing. n SnPb or RoHS Compliant Finish The LTM8048 is packaged in a thermally enhanced, com- n Low Profile (11.25mm 9mm 4.92mm) Surface pact (11.25mm 9mm 4.92mm) over-molded ball grid Mount BGA Package array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8048 is avail- APPLICATIONS able with SnPb (BGA) or RoHS compliant terminal finish. L, LT, LTC, LTM, Linear Technology, the Linear logo and Module are registered trademarks of n Industrial Sensors Linear Technology Corporation. All other trademarks are the property of their respective owners. n Industrial Switches n Ground Loop Mitigation TYPICAL APPLICATION Total Output Current vs V IN 725V DC Isolated Low Noise Module Regulator 330 LTM8048 5.7V V IN V V 280 IN OUT1 3.1V TO 29V V 2.2F OUT2 RUN V OUT2 5V BIAS BYP 230 4.7F 6.19k 22F ADJ1 ADJ2 180 162k 10F SS GND V OUT 130 8048 TA01 725VDC ISOLATION 80 0 5 10 15 20 25 30 INPUT VOLTAGE (V) 8048 TA01b 8048fg 1 For more information www.linear.com/LTM8048 ISOLATION BARRIER V CURRENT (mA) OUT1LTM8048 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW V , RUN, BIAS ........................................................32V IN ADJ1, SS .....................................................................5V A ADJ2 V Relative to V ............................................16V OUT1 OUT B (V GND) + (V V ) .................................36V IN OUT1 OUT C V Relative to V ..........................................+20V OUT2 OUT BANK 3 BANK 2 BANK 1 D BYP V V V OUT2 OUT OUT1 ADJ2 Relative to V .............................................+7V OUT E BANK 4 BYP Relative to V ............................................+0.6V OUT GND BANK 5 F BIAS Above V ........................................................ 0.1V V IN IN RUN G ADJ1 GND to V Isolation (Note 2) ........................725VDC OUT Maximum Internal Temperature (Note 3) .............. 125C H BIAS SS Maximum Solder Temperature .............................. 250C 1 2 3 4 5 6 7 Storage Temperature.............................. 55C to 125C BGA PACKAGE 45-LEAD (11.25mm 9mm 4.92mm) T = 125C, = 23.2C/W, = 5.8C/W, = 23.2C/W, = 6.7C/W JMAX JA JCbottom JCtop JB WEIGHT = 1.1g, VALUES DETERMINED PER JEDEC 51-9, 51-12 ORDER INFORMATION PART MARKING* PAD OR BALL PART NUMBER FINISH DEVICE FINISH CODE PACKAGE TYPE MSL RATING TEMPERATURE RANGE (NOTE 3) LTM8048EY PBF SAC305 (RoHS) LTM8048Y e1 BGA 3 40C to 125C LTM8048IY PBF SAC305 (RoHS) LTM8048Y e1 BGA 3 40C to 125C LTM8048IY SnPb (63/37) LTM8048Y e0 BGA 3 40C to 125C LTM8048MPY PBF SAC305 (RoHS) LTM8048Y e1 BGA 3 55C to 125C LTM8048MPY SnPb (63/37) LTM8048Y e0 BGA 3 55C to 125C Consult Marketing 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 shipping Procedures: container. Pad or ball finish code is per IPC/JEDEC J-STD-609. www.linear.com/umodule/pcbassembly Pb-free & Non-Pb-free Part Markings: BGA Package and Tray Drawings: www.linear.com/leadfree www.linear.com/packaging/ 8048fg 2 For more information www.linear.com/LTM8048