LTM4602HV 6A, 28VIN High Effi ciency DC/DC µModule UFEATURESDESCRIPTIO ■ 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 µModule™ DC/DC Converters a single resistor. This high effi ciency design delivers 6A ■ Current Mode Control continuous current (8A peak), needing no heat sinks or ■ Pin Compatible with the LTM4600 and LTM4602 airfl ow to meet power specifi cations. Only bulk input and ■ Up to 92% Effi ciency output capacitors are needed to fi nish the design. ■ Programmable Soft-Start The low profi 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 Profi le (15mm × 15mm × sacrifi 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 profi 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. µModule 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. UTYPICAL APPLICATIOEffi ciency vs Load Current with 24VIN (FCB = 0) 90 80 6A µModule Power Supply with 4.5V to 28V Input 70 60 VIN VOUT 4.5V TO 28V V 50 IN VOUT 2.5V ABS MAX C 6A IN LTM4602HV COUT 40 EFFICIENCY (%) 1.2V 30 OUT VOSET 1.5VOUT PGND SGND 20 1.8VOUT 31.6k 2.5VOUT 10 3.3VOUT 3.3VOUT (1MHz) 4602HV TA01a 0 0 1 2 3 4 5 6 LOAD CURRENT (A) 4602HV G03 4602hvf 1
