LTM4644-1 Datasheet | Linear Technology

LTM4644/LTM4644-1 Quad DC/DC µModule Regulator with Configurable 4A Output Array Features n Quad Output Step-Down µModule® Regulator with 4A per Output n Wide Input Voltage Range: 4V to 14V n2.375V to 14V with External Bias n0.6V to 5.5V Output Voltage n4A DC, 5A Peak Output Current Each Channel n Up to 5.5W Power Dissipation (TA = 60°C, 200 LFM, No Heat Sink) n±1.5% Total Output Voltage Regulation n Current Mode Control, Fast Transient Response n Parallelable for Higher Output Current n Output Voltage Tracking n Internal Temperature Sensing Diode Output n External Frequency Synchronization n Overvoltage, Current and Temperature Protection n9mm × 15mm × 5.01mm BGA Package APPLICATIONS n Multirail Point of Load Regulation n FPGAs, DSPs and ASICs Applications All registered trademarks and trademarks are the property of their respective owners. DESCRIPTION The LTM®4644/LTM4644-1 is a quad DC/DC step-down µModule (micromodule) regulator with 4A per output. Outputs can be paralleled in an array for up to 16A capability. Included in the package are the switching controllers, power FETs, inductors and support ponents. Operating over an input voltage range of 4V to 14V or 2.375V to 14V with an external bias supply, the LTM4644/LTM4644-1 supports an output voltage range of 0.6V to 5.5V. Its high efficiency design delivers 4A continuous (5A peak) output current per channel. Only bulk input and output capacitors are needed. Top Feedback Resistor from VOUT-to-VFB (one resistor per channel) Application LTM4644 Integrated 60.4k 0.5% Resistor General Applications Configurable Output Array- 4A 4A 8A 4A 4A 4A 4A - Note 4 Click to view associated Tech Clip Videos. LTM4644-1 External (to be added on PCB) To Interface with PMBus power system management supervisory ICs such as the LTC2975 12A 16A 4A TYPICAL APPLICATION 4V to 14V Input, Quad 0.9V, 1V, 1.2V and 1.5V Output DC/DC µModule Regulator- 4V to 14V 22µF ×2 16V VIN1 CLKIN SVIN1 CLKOUT VOUT1...