LTM4601-1 Datasheet | Linear Technology

Features n plete Switch Mode Power Supply n Wide Input Voltage Range: 4.5V to 20V n 12A DC Typical, 14A Peak Output Current n 0.6V to 5V Output Voltage n Output Voltage Tracking and Margining n Parallel Multiple µModule Regulators for Current Sharing n Differential Remote Sensing for Precision Regulation (LTM4601 Only) n PLL Frequency Synchronization n ±1.5% Regulation n Current Foldback Protection (Disabled at Start-Up) n Sn Pb or Ro HS pliant Finish n Ultra Fast™ Transient Response n Current Mode Control n Up to 95% Efficiency at 5VIN, 3.3VOUT n Programmable Soft-Start n Output Overvoltage Protection n Small Footprint, Low Profile (15mm × 15mm × 2.82mm) Surface Mount LGA and (15mm × 15mm × 3.42mm) BGA Packages Applications n Tele and Networking Equipment n Servers n Industrial Equipment n Point of Load Regulation LTM4601/LTM4601-1 12A µModule Regulators with PLL, Output Tracking and Margining Description The LTM®4601 is a plete 12A step-down switch mode DC/DC power supply with onboard switching controller, MOSFETs, inductor and all support ponents. The µModule® regulator is housed in small surface mount 15mm × 15mm × 2.82mm LGA and 15mm × 15mm × 3.42mm BGA packages. Operating over an input voltage range of 4.5V to 20V, the LTM4601 supports an output voltage range of 0.6V to 5V as well as output voltage tracking and margining. The high efficiency design delivers 12A continuous current (14A peak). Only bulk input and output capacitors are needed to plete the design. The low profile and light weight package easily mounts in unused space on the back side of PC boards for high density point of load regulation. The µModule regulator can be synchronized with an external clock for reducing undesirable frequency harmonics and allows Poly Phase® operation for high load currents. A high switching frequency and adaptive on-time current mode architecture deliver a very fast transient response to line and load changes without sacrificing...