Features

• Complete Switch Mode Power Supply
• Wide Input Voltage Range: 4.5V to 28V
• 6A DC, Typical 8A Peak Output Current
• 0.6V to 5V Output Voltage
• 1.5% Output Voltage Regulation
• Ultrafast Transient Response
• Parallel µModule™ DC/DC Converters
• Current Mode Control
• Pin Compatible with the LTM4600 and LTM4602
• Up to 92% Efficiency
• Programmable Soft-Start
• Output Overvoltage Protection
• Optional Short-Circuit Shutdown Timer
• Pb-Free (e4) RoHS Compliant Package with Gold-Pad Finish
• Small Footprint, Low Profile (15mm × 15mm × 2.8mm) LGA Package

Typical Application

Description

The LTM4602HV is a complete 6A, DC/DC step down power supply with up to 28V input operation. Included in the package are the switching controller, power FETs, inductor, and all support components. Operating over an input voltage range of 4.5V to 28V, the LTM4602HV supports an output voltage range of 0.6V to 5V, set by a single resistor. This high efficiency design delivers 6A continuous current (8A peak), needing no heat sinks or airflow to meet power specifications. Only bulk input and output capacitors are needed to finish the design.

The low profile package (2.8mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. High switching frequency and an adaptive on-time current mode architecture enables a very fast transient response to line and load changes without sacrificing stability. Fault protection features include integrated overvoltage and short circuit protection with a defeatable shutdown timer. A built-in soft-start timer is adjustable with a small capacitor.

The LTM4602HV is packaged in a thermally enhanced, compact (15mm × 15mm) and low profile (2.8mm) over-molded Land Grid Array (LGA) package suitable for automated assembly by standard surface mount equipment. For the 4.5V to 20V input range version, refer to the LTM4602.