The LTM4630 is a dual 18A or single 36A output switching mode step-down DC/DC μModule® (power module) regulator. Included in the package are the switching controllers, power FETs, inductors, and all supporting components. Operating from an input voltage range of 4.5V to 15V, the LTM4630 supports two outputs each with an output voltage range of 0.6V to 1.8V, each set by a single external resistor. Its high efficiency design delivers up to 18A continuous current for each output. Only a few input and output capacitors are needed. The LTM4630 is pin compatible with the LTM4620 and LTM4620A (dual 13A, single 26A) and the LTM4628 (dual 8A, single 16A).
The device supports frequency synchronization, multiphase operation, Burst Mode operation and output voltage tracking for supply rail sequencing and has an onboard temperature diode for device temperature monitoring. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability.
Fault protection features include overvoltage and overcurrent protection. The LTM4630 is offered in 16mm × 16mm × 4.41mm LGA and 16mm × 16mm × 5.01mm BGA packages. The LTM4630 is ROHS compliant.
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal. View our quality and reliability program and certifications for more information.
Jul 28, 2021 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan)
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LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.
Demonstration Circuit 2007A-A features a PolyPhase® design using the LTM4630EV, the high efficiency, high density, dual 18A, switch mode step-down power μModule® regulator. The input voltage is from 4.5V to 15V. The output voltage is jumper selectable from 0.9V to 1.8V. The DC2007A-A can deliver a nominal 70A output current. As explained in the data sheet, output current derating is necessary for certain VIN, VOUT, and thermal conditions. The LTM4630 on the DC2007A-A always operates in continuous conduction mode. The switching frequency can be programmed through a resistor or can be synchronized to an external clock signal. The board allows the user to program how its output voltage ramps up and down through the TRACK pin.
Demonstration circuit 1892A features the LTM4630EV, the high efficiency, high density, dual 18A, switch mode step-down power module regulator. The input voltage is from 4.5V to 15V. The output voltage is programmable from 0.6V to 1.8V. DC1892A can deliver up to 18A maximum in each channel. As explained in the LTM4630 data sheet, output current derating is necessary for certain VIN, VOUT and thermal conditions. The board operates in continuous conduction mode in heavy load conditions. For high efficiency at low load currents, the MODE jumper (JP1) selects pulse-skipping mode for noise-sensitive applications or Burst Mode® operation in less noise-sensitive applications.
Demonstration circuit 2007A-C features a PolyPhase® design using the LTM4630EV, the high efficiency, high density, dual 18A, switch mode step-down power μModule® regulator. The input voltage is from 4.5V to 15V. The output voltage is jumper selectable from 0.9V to 1.8V. The DC2007A-C can deliver a nominal 140A output current. As explained in the data sheet, output current derating is necessary for certain VIN, VOUT, and thermal conditions. The LTM4630 on the DC2007A-C always operates in continuous conduction mode. The switching frequency can be programmed through a resistor or can be synchronized to an external clock signal. The board allows the user to program how its output voltage ramps up and down through the TRACK pin.
Demonstration circuit 2081A-A features the LTM4630EV, the high efficiency, high density, dual 18A, switch mode step-down μModule® regulator. The input voltage is from 4.5V to 15V. The output voltage is programmable from 0.6V to 1.8V. DC2081A-A is configured as dual-phase, single-output, which can deliver up to 36A maximum. The board designs with minimum components to demonstrate this high efficiency, high density μModule. As explained in the data sheet, output current de-rating is necessary for certain VIN, VOUT, and thermal conditions.
Demonstration circuit 2007A-B features a PolyPhase® design using the LTM4630EV, the high efficiency, high density, dual 18A, switch mode step-down power μModule® regulator. The input voltage is from 4.5V to 15V. The output voltage is jumper selectable from 0.9V to 1.8V. The DC2007A-B can deliver a nominal 105A output current. As explained in the data sheet, output current derating is necessary for certain VIN, VOUT, and thermal conditions. The LTM4630 on DC2007A-B always operates in continuous conduction mode. The switching frequency can be programmed through a resistor or can be synchronized to an external clock signal.
Demonstration circuit 2106B-B is a high efficiency, high density, paralleled, multi-chip μModule regulator solution with a 4.5V to 16V input range and 130A of output current. The output voltage (1V default value) is adjustable from 0.5V to 1.8V. The demo board has 1× LTM4676A acting as the master controller, and 3× LTM4630 μModule slave controllers. All devices having their outputs paralleled to provide 130A of current. Please see the LTM4676A and LTM4630 data sheets for more detailed information.
