LTM8057 3.1V to 31V Isolated IN IN Module DC/DC Converter FEATURES DESCRIPTION n 2kV AC Isolated Module Converter (Tested at 3kVDC) The LTM 8057 is a 2kV AC isolated flyback Module n UL60950 Recognized File 464570 (micromodule) DC/DC converter. Included in the package n Wide Input Voltage Range: 3.1V to 31V are the switching controller, power switches, transformer, n Up to 440mA Output Current (V = 24V V = 2.5V) and all support components. Operating over an input volt- IN , OUT1 Output Adjustable from 2.5V to 12V age range of 3.1V to 31V, the LTM8057 supports an output n Current Mode Control voltage range of 2.5V to 12V, set by a single resistor. Only n Programmable Soft-Start output and input capacitors are needed to finish the design. n User Configurable Undervoltage Lockout Other components may be used to control the soft-start n Low Profile (9mm 11.25mm 4.92mm) control and biasing. BGA Package The LTM8057 is packaged in a thermally enhanced, com- pact (9mm 11.25mm 4.92mm) overmolded ball grid array (BGA) package suitable for automated assembly APPLICATIONS by standard surface mount equipment. The LTM8057 is n Industrial Sensors available with SnPb or RoHS compliant terminal finish. n Industrial Switches L, LT, LTC, LTM, Linear Technology, the Linear logo and Module are registered trademarks of n Analog Devices, Inc. All other trademarks are the property of their respective owners. Test and Measurement Equipment TYPICAL APPLICATION 2kV AC Isolated Module Regulator Maximum Output Current vs V IN 400 V V V IN OUT V IN OUT 4.3V TO 29V 5V 300 RUN 22F 2.2F V GND OUT 200 BIAS 4.7F 100 SS 6.98k ADJ LTM8057 8057 TA01a 0 2kV AC ISOLATION 0 5 10 15 20 25 30 V (V) IN 8057 TA01b 8057fa 1 For more information www.linear.com/LTM8057 MAXIMUM OUTPUT CURRENT (mA)LTM8057 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW V , RUN, BIAS ........................................................32V IN ADJ, SS .......................................................................5V A V Relative to V ............................................16V B OUT1 OUT V + V (Note 2) ...................................................36V BANK 2 BANK 1 IN OUT C V V OUT OUT BIAS Above V ........................................................ 0.1V IN D GND to V Isolation (Note 3) ......................... 2kV AC OUT E BANK 4 Maximum Internal Temperature (Note 4) .............. 125C BANK 5 GND F V IN Peak Solder Reflow Body Temperature ................. 245C RUN G ADJ Storage Temperature.............................. 55C to 125C H BIAS SS 1 2 3 4 5 6 7 BGA PACKAGE 38-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