LTM4602HV 6A, 28V High Ef ciency IN DC/DC Module DESCRIPTIO FEATURES Complete Switch Mode Power Supply The LTM 4602HV is a complete 6A, DC/DC step down Wide Input Voltage Range: 4.5V to 28V power supply with up to 28V input operation. Included 6A DC, Typical 8A Peak Output Current in the package are the switching controller, power FETs, 0.6V to 5V Output Voltage inductor, and all support components. Operating over 1.5% Output Voltage Regulation an input voltage range of 4.5V to 28V, the LTM4602HV Ultrafast Transient Response supports an output voltage range of 0.6V to 5V, set by Parallel Module DC/DC Converters a single resistor. This high ef ciency design delivers 6A Current Mode Control continuous current (8A peak), needing no heat sinks or Pin Compatible with the LTM4600 and LTM4602 air ow to meet power speci cations. Only bulk input and Up to 92% Ef ciency output capacitors are needed to nish the design. Programmable Soft-Start The low pro le package (2.8mm) enables utilization of Output Overvoltage Protection unused space on the bottom of PC boards for high density Optional Short-Circuit Shutdown Timer point of load regulation. High switching frequency and an Pb-Free (e4) RoHS Compliant Package with Gold-Pad adaptive on-time current mode architecture enables a very Finish fast transient response to line and load changes without Small Footprint, Low Pro le (15mm 15mm sacri cing stability. Fault protection features include 2.8mm) LGA Package integrated overvoltage and short circuit protection with U a defeatable shutdown timer. A built-in soft-start timer is APPLICATIO S adjustable with a small capacitor. Telecom and Networking Equipment The LTM4602HV is packaged in a thermally enhanced, com- Servers pact (15mm 15mm) and low pro le (2.8mm) over-molded Industrial Equipment Land Grid Array (LGA) package suitable for automated Point of Load Regulation assembly by standard surface mount equipment. For the , LT, LTC and LTM are registered trademarks of Linear Technology Corporation. 4.5V to 20V input range version, refer to the LTM4602. 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. TYPICAL APPLICATIO Ef ciency vs Load Current with 24V (FCB = 0) IN 90 80 70 6A Module Power Supply with 4.5V to 28V Input 60 V V IN OUT 50 4.5V TO 28V V V 2.5V IN OUT ABS MAX 6A C C IN OUT LTM4602HV 40 1.2V OUT 30 V 1.5V OUT OSET 1.8V PGND SGND OUT 20 31.6k 2.5V OUT 3.3V 10 OUT 3.3V (1MHz) OUT 4602HV TA01a 0 0 1 2364 5 LOAD CURRENT (A) 4602HV G03 4602hvf 1 EFFICIENCY (%) U ULTM4602HV UUW ABSOLUTE AXI U RATI GS PACKAGE/ORDER I FOR ATIO (Note 1) TOP VIEW FCB, EXTV , PGOOD, RUN/SS, V .......... 0.3V to 6V CC OUT V , SV , f ............................................ 0.3V to 28V IN IN ADJ COMP V , COMP ............................................. 0.3V to 2.7V OSET V IN SGND Operating Temperature Range (Note 2) ... 40C to 85C RUN/SS Junction Temperature ........................................... 125C FCB PGOOD Storage Temperature Range ................... 55C to 125C 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 PART NUMBER LGA PART MARKING* LTM4602HVEV PBF LTM4602HVV LTM4602HVIV PBF LTM4602HVV 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. The ELECTRICAL CHARACTERISTICS denotes the speci cations which apply over the 40C to 85C temperature range, otherwise speci cations are at T = 25C, V = 12V. External C = 120F, C = 200F/Ceramic per typical A IN IN OUT application (front page) con guration. SYMBOL PARAMETER CONDITIONS MIN TYP MAX UNITS V Input DC Voltage AbsMax 28V for Tolerance on 24V Inputs 4.5 28 V IN(DC) V Output Voltage FCB = 0V OUT(DC) V = 5V or 12V, V = 1.5V, I = 0A 1.478 1.50 1.522 V IN OUT OUT 1.470 1.50 1.530 V Input Speci cations V Under Voltage Lockout Threshold I = 0A 3.4 4 V IN(UVLO) OUT I Input Inrush Current at Startup I = 0A, V = 1.5V, FCB = 0 INRUSH(VIN) OUT OUT V = 5V 0.6 A IN V = 12V 0.7 A IN V = 24V 0.8 A IN I Input Supply Bias Current I = 0A, EXTV Open Q(VIN) OUT CC V = 12V, V = 1.5V, FCB = 5V 1.2 mA IN OUT V = 12V, V = 1.5V, FCB = 0V 42 mA IN OUT V = 24V, V = 2.5V, FCB = 5V 1.8 mA IN OUT V = 24V, V = 2.5V, FCB = 0V 36 mA IN OUT Shutdown, RUN = 0.8V, V = 12V 50 100 A IN Min On Time 100 ns Min Off Time 400 ns I Input Supply Current V = 12V, V = 1.5V, I = 6A 0.88 A S(VIN) IN OUT OUT V = 12V, V = 3.3V, I = 6A 1.50 A IN OUT OUT V = 5V, V = 1.5V, I = 6A 2.08 A IN OUT OUT V = 24V to 3.3V at 6A, EXTV = 5V 0.98 A IN CC 4602hvf 2 f ADJ SV IN EXTV CC V OSET U WWW