LTM4607V

Product Summary

The LTM4607V is a high efficiency 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 36V, the LTM4607V supports an output voltage range of 0.8V to 24V, set by a resistor. This high effi ciency design delivers up to 5A continuous current in boost mode (10A in buck mode). Only the inductor, sense resistor, bulk input and output capacitors are needed to finish the design. The low profile 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 without sacrifi cing stability. The LTM4607V 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 μModule is offered in a small thermally enhanced 15mm × 15mm × 2.8mm LGA package. The LTM4607V is Pb-free and RoHS compliant.

Parametrics

LTM4607V absolute maximum ratings: (1)VIN: –0.3V to 36V; (2)VOUT: 0.8V to 25V; (3)INTVCC, EXTVCC, RUN, SS, PGOOD: –0.3V to 7V; (4)SW1, SW2: –5V to 36V; (5)VFB, COMP: –0.3V to 2.4V; (6)FCB, STBYMD: –0.3V to INTVCC; (7)PLLIN: –0.3V to 5.5V; (8)PLLFLTR: –0.3V to 2.7V; (9)Operating Temperature Range: –40℃ to 85℃; (10)Junction Temperature: 125℃; (11)Storage Temperature Range: –55℃ to 125℃.

Features

LTM4607V features: (1)Single Inductor Architecture Allows VIN Above, Below or Equal to VOUT; (2)Wide VIN Range: 4.5V to 36V; (3)Wide VOUT Range: 0.8V to 24V; (4)5A DC (10A DC in Buck Mode); (5)High Effi ciency Up to 98%; (6)Current Mode Control; (7)Power Good Output Signal; (8)Phase-Lockable Fixed Frequency: 200kHz to 400kHz; (9)Ultra-Fast Transient Response; (10)Current Foldback Protection; (11)Output Overvoltage Protection; (12)Small, Low Profi le Surface Mount LGA Package(15mm × 15mm × 2.8mm).

Diagrams