LTM4605

The LTM^®4605 is a high effi ciency switching mode buckboost power supply. Included in the package are the switching controller, power FETs, and support components. Operating over an input voltage range of 4.5V to 20V, the LTM4605 supports an output voltage range of 0.8V to 16V, set by a resistor. This high effi ciency design delivers up to 5A continuous current in boost mode (12A in buck mode). Only the inductor, sense resistor, bulk input and output capacitors are needed to fi nish the design.

The low profi le package enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The high switching frequency and current mode  architecture enable a very fast transient response to line and load changes. The LTM4605 can be frequency synchronized with an external clock to reduce undesirable frequency harmonics.

Fault protection features include overvoltage and foldback current protection. The DC/DC Module™ is offered in a small and thermally enhanced 15mm * 15mm * 2.8mm LGA package. The LTM4605 is Pb-free and RoHS compliant.