LTM4619 Datasheet | Linear Technology

LTM4619 Dual, 26VIN, 4A DC/DC µModule Regulator .. Features n n n n n n n n n n n n n n DESCRIPTION The LTM®4619 is a plete dual 4A step-down switching mode DC/DC power supply. Included in the package are the switching controller, power FETs, inductor, and all support ponents. Operating over input voltage ranges of 4.5V to 26.5V, the LTM4619 supports two outputs with voltage ranges of 0.8V to 5V, each set by a single external resistor. Its high efficiency design delivers 4A continuous current (5A peak) for each output. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The two outputs are interleaved with 180° phase to minimize the ripple noise and reduce the I/O capacitors. The device supports frequency synchronization and output voltage tracking for supply rail sequencing. Burst Mode operation or pulse-skipping mode can be selected for light load operations. Fault protection Features include overvoltage protection, overcurrent protection and foldback current limit for short-circuit protection. The low profile package (2.8mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. The power module is offered in a space saving and thermally enhanced 15mm × 15mm × 2.8mm LGA package. The LTM4619 is Pb-free and Ro HS pliant. plete Standalone Power Supply Wide Input Voltage Range: 4.5V to 26.5V (EXTVCC Available for VIN ≤ 5.5V) Dual 180° Out-of-Phase Outputs with 4A DC Typical, 5A Peak Output Current for Each Dual Outputs with 0.8V to 5V VOUT Range Output Voltage Tracking ±1.5% Total DC Output Error Current Mode Control/Fast Transient Response Power Good Phase-Lockable Fixed Frequency 250k Hz to 780k Hz On Board Frequency Synchronization Parallel Current Sharing Selectable Burst Mode® Operation Output Overvoltage Protection Small Surface Mount Footprint, Low Profile (15mm × 15mm × 2.8mm) LGA...