The LTM4600HV is a high-efficiency 10A DC/DC µModule suitable for applications with an input voltage range of 4.5V to 28V and an output voltage range of 0.6V to 5V. This product adopts a high switching frequency and an adaptive on-time current mode architecture, enabling a very fast transient response to line and load changes. Fault protection features include integrated overvoltage and short circuit protection with a defeatable shutdown timer. The product also features a built-in soft-start timer that can be adjusted with a small capacitor. The LTM4600HV is packaged in a low-profile package, allowing for high-density point-to-point regulation using unused space on the bottom of the PCB.
This handbook describes the LTM4600HV, a 10 A, 4.5 V‑to‑28 V input, 0.6 V‑to‑5 V output synchronous step‑down DC/DC power module. It includes features such as up to 92 % efficiency, 1.5 % voltage regulation, and built‑in over‑voltage and short‑circuit protection.
The document contains electrical characteristics, absolute maximum ratings, pin assignments, a simplified block diagram, and typical application schematics. It also outlines operation modes, soft‑start behavior, and recommended external components such as input and output capacitors.
| Input Voltage Range | 4.5 V to 28 V |
|---|---|
| Output Voltage Range | 0.6 V to 5 V |
| Continuous Output Current | 10 A |
| Peak Output Current | 12 A |
| Efficiency | up to 92 % |
| Output Voltage Regulation | 1.5 % |
The module operates from 4.5 V up to 28 V input.
It delivers up to 10 A continuous output current (12 A peak).
No external soft‑start capacitor is needed for the LTM4600HV.
The device includes output overvoltage protection and an optional short‑circuit shutdown timer.