LTM4602 6A High Ef ciency DC/DC Module FEATURES DESCRIPTION n Complete Switch Mode Power Supply The LTM 4602 is a complete 6A DC/DC step down power n Wide Input Voltage Range: 4.5V to 20V supply. Included in the package are the switching control- n 6A DC, 8A Peak Output Current ler, power FETs, inductor, and all support components. n 0.6V to 5V Output Voltage Operating over an input voltage range of 4.5V to 20V, the n 1.5% Output Voltage Regulation LTM4602 supports an output voltage range of 0.6V to 5V, n Ultrafast Transient Response set by a single resistor. This high ef ciency design delivers n Current Mode Control 6A continuous current (8A peak), needing no heat sinks or n Pb-Free (e4) RoHS Compliant Package with Gold- air ow to meet power speci cations. Only bulk input and Pad Finish output capacitors are needed to nish the design. n Pin Compatible with the LTM4600 The low pro le package (2.8mm) enables utilization of n Up to 92% Ef ciency unused space on the bottom of PC boards for high density n Programmable Soft-Start point of load regulation. High switching frequency and an n Output Overvoltage Protection adaptive on-time current mode architecture enables a very n Optional Short-Circuit Shutdown Timer fast transient response to line and load changes without n See the LTM4602HV for Operation Up to 28V IN sacri cing stability. Fault protection features include n Small Footprint, Low Pro le (15mm 15mm integrated overvoltage and short circuit protection with 2.8mm) Surface Mount LGA Package a defeatable shutdown timer. A built-in soft-start timer is adjustable with a small capacitor. APPLICATIONS The LTM4602 is packaged in a thermally enhanced, compact n Telecom and Networking Equipment (15mm 15mm) and low pro le (2.8mm) over-molded n Servers Land Grid Array (LGA) package suitable for automated as- n Industrial Equipment sembly by standard surface mount equipment. For the 4.5V n Point of Load Regulation to 28V input range version, refer to the LTM4602HV. L, LT, LTC and LTM are registered trademarks of Linear Technology Corporation. Module is a trademark of Linear Technology Corporation. All other trademarks are the property of their respective owners. Protected by U.S. Patents including 5481178, 6100678, 6580258, 5847554, 6304066. Ef ciency vs Load Current TYPICAL APPLICATION with 12V (FCB = 0) IN 100 TM 6A Module Power Supply with 4.5V to 20V Input 90 80 V OUT V IN 70 V V 1.5V IN OUT 4.5V TO 20V 6A C C 60 IN LTM4602 OUT 0.8V OUT 50 1.2V OUT V OSET 1.5V OUT 40 PGND SGND 1.8V R OUT SET 2.5V 66.5k 30 OUT 3.3V OUT 20 3.3V (950kHz)* OUT 4602 TA01a *950kHz INSTEAD OF 1.3MHz 10 INCREASES 3.3V EFFICIENCY 2% 0 0 2 4 6 8 LOAD CURRENT (A) 4602 TA01b 4602fa 1 EFFICIENCY (%)LTM4602 ABSOLUTE MAXIMUM RATINGS PIN CONFIGURATION (Note 1) TOP VIEW FCB, EXTV , PGOOD, RUN/SS, V .......... 0.3V to 6V CC OUT V , SV , f ............................................ 0.3V to 20V IN IN ADJ V , COMP ............................................. 0.3V to 2.7V COMP OSET V IN SGND Operating Temperature Range (Note 2).... 40C to 85C RUN/SS Junction Temperature ........................................... 125C FCB Storage Temperature Range ................... 55C to 125C PGOOD PGND V OUT LGA PACKAGE 104-LEAD (15mm 15mm 2.8mm) T = 125C, = 15C/W, = 6C/W, JMAX JA JC DERIVED FROM 95mm 76mm PCB WITH 4 LAYERS JA WEIGHT = 1.7g ORDER INFORMATION LEAD FREE FINISH PART MARKING* PACKAGE DESCRIPTION TEMPERATURE RANGE LTM4602EV PBF LTM4602V 104-Lead (15mm 15mm 2.8mm) LGA 40C to 85C LTM4602IV PBF LTM4602V 104-Lead (15mm 15mm 2.8mm) LGA 40C to 85C Consult LTC Marketing for parts speci ed with wider operating temperature ranges. *The temperature grade is identi ed by a label on the shipping container. Consult LTC Marketing for information on non-standard lead based nish parts. For more information on lead free part marking, go to: