LTM4613 EN55022B Compliant 36V , 15V , 8A, IN OUT DC/DC Module Regulator FEATURES DESCRIPTION n Complete Low EMI Switch Mode Power Supply The LTM 4613 is a complete, ultralow noise, 8A switch n EN55022 Class B Compliant mode DC/DC power supply. Included in the package are the n Wide Input Voltage Range: 5V to 36V switching controller, power FETs, inductor and all support n 8A Output Current components. Operating over an input voltage range of 5V n 3.3V to 15V Output Voltage Range to 36V, the LTM4613 supports an output voltage range of n Low Input and Output Referred Noise 3.3V to 15V, set by a single external resistor. Only bulk n Output Voltage Tracking and Margining input and output capacitors are needed to finish the design. n PLL Frequency Synchronization High switching frequency and an adaptive on-time current n 2% Maximum Total DC Error mode architecture enables a very fast transient response n Power Good Tracks with Margining to line and load changes without sacrificing stability. n Current Foldback Protection n The onboard input filter and noise cancellation circuits Parallel/Current Sharing n achieve low noise coupling, thus effectively reducing Ultrafast Transient Response n the electromagnetic interference (EMI)see Figure 7. Current Mode Control n Furthermore, the DC/DC Module regulator can be syn- Programmable Soft-Start n chronized with an external clock to reduce undesirable Output Overvoltage Protection n frequency harmonics and allow PolyPhase operation for 55C to 125C Operating Temperature Range high load currents. (LTM4613MPV, LTM4613MPY) n 15mm 15mm 4.32mm LGA and The LTM4613 is offered in 15mm 15mm 4.32mm 15mm 15mm 4.92mm BGA Packages LGA and 15mm 15mm 4.92mm BGA packages. The n SnPb (BGA) or RoHS Compliant (LGA and BGA) Finish LTM4613 is available with SnPb (BGA) or RoHS compli- ant terminal finish. APPLICATIONS L, LT, LTC, LTM, Module, PolyPhase, Linear Technology, and the Linear logo are registered trademarks and LTpowerCAD is a trademark of Linear Technology Corporation. All other n Telecom and Networking Equipment trademarks are the property of their respective owners. n Industrial and Avionic Equipment n RF Systems TYPICAL APPLICATION Radiated Emission Scan with 24V to 12V at 8A IN OUT 12V/8A Ultralow Noise Module with 24V to 36V Input 70 V CLOCK SYNC IN 60 24V TO 36V 51k V PLLIN IN V 50 OUT 12V PGOOD V OUT 8A EN55022B LIMIT 40 LTM4613 22pF RUN C OUT COMP V FB 30 INTV 5.23k CC C IN DRV CC FCB 20 f SET MARG0 MARGIN 10 TRACK/SS CONTROL MARG1 0.1F V D MPGM 0 10F 392k SGND PGND 3 5% MARGIN 10 30 226.2 422.4 613.6 814.3 1010.0 4613 TA01 FREQUENCY (MHz) 4613 TA01b 4613fd 1 For more information www.linear.com/LTM4613 SIGNAL AMPLITUDE (dB uV/m)LTM4613 ABSOLUTE MAXIMUM RATINGS (Note 1) INTV DRV ............................................. 0.3V to 6V V , V ....................................................... 0.3V to 36V CC, CC IN D V ........................................................... 0.3V to 16V Internal Operating Temperature Range (Note 2) OUT PLLIN, FCB, TRACK/SS, MPGM, MARG0, E- and I-Grades .................................. 40C to 125C MARG1, PGOOD ....................0.3V to INTV + 0.3V MP-Grade .......................................... 55C to 125C CC RUN .............................................................0.3V to 5V Storage Temperature Range .................. 55C to 125C V , COMP ................................................ 0.3V to 2.7V Peak Solder Reflow Package Body Temperature ..... 245C FB PIN CONFIGURATION TOP VIEW TOP VIEW A A V V IN IN BANK 1 B f BANK 1 B f SET SET V V D D C MARG0 C MARG0 SGND SGND D MARG1 D MARG1 E DRV E DRV CC CC PGND PGND F V F V FB FB BANK 2 BANK 2 G PGOOD G PGOOD H H SGND SGND J NC J NC V V K NC K NC OUT OUT BANK 3 BANK 3 L NC L NC M FCB M FCB 1 2 3 4 5 6 7 8 9 10 11 12 1 2 3 4 5 6 7 8 9 10 11 12 LGA PACKAGE BGA PACKAGE 133-LEAD (15mm 15mm 4.32mm) 133-LEAD (15mm 15mm 4.92mm) T = 125C, = 17C/w, = 2.3C/W, = 10C/W, = 2.5C/W, T = 125C, = 17C/w, = 2.3C/W, = 10C/W, = 2.5C/W, JMAX JCtop JCbottom JA JB JMAX JCtop JCbottom JA JB DERIVED FROM 95mm 76mm PCB WITH 4 LAYERS DERIVED FROM 95mm 76mm PCB WITH 4 LAYERS JA JA WEIGHT = 2.5g WEIGHT = 2.7g