Analog Devices Inc./Maxim Integrated

The LTM4650 is a dual 25A or single 50A 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 LTM4650 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 25A continuous current for each output. Only a few input and output capacitors are needed. The LTM4650 is pin compatible with theLTM4620(dual 13A, single 26A) and theLTM4630(dual 18A, single 36A).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 LTM4650 is offered in a 16mm × 16mm × 5.01mm BGA package.Vin RangeVout RangeCompDC Vout AccyLTM46504.5V to 15V0.6V to 1.8VInternal1.5%LTM4650-1B4.5V to 15V0.6V to 1.8VExternal1.5%LTM4650-1A4.5V to 15V0.6V to 1.8VExternal0.8%LTM4650A4.5V to 16V0.6V to 5.5VInternal1%LTM4650A-14.5V to 16V0.6V to5.5VExternal1%APPLICATIONSProcessor, ASIC and FPGA Core PowerTelecom and Networking EquipmentStorage and ATCA CardsIndustrial Equipment

The LTM4650-1A/LTM4650-1B is dual 25A or single 50A output step-down µModule®(power module) regulator with ±0.8% (LTM4650-1A) and ±1.5% (LTM4650-1B) total DC output error with ±3% transient output error. Included in the package are the switching controller, power FETs, inductors, and all supporting components. External compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors. With synchronized multiphase parallel current sharing, six LTM4650-1 devices can deliver up to 300A. The LTM4650-1 is offered in a 16mm × 16mm × 5.01 BGA package, with SnPb (BGA) or RoHS compliant terminal finish.VINRangeVOUTRangeCompDC VOUTAccyLTM46504.5V to 15V0.6V to 1.8VInternal1.5%LTM4650-1B4.5V to 15V0.6V to 1.8VExternal1.5%LTM4650-1A4.5V to 15V0.6V to 1.8VExternal0.8%LTM4650A4.5V to 16V0.6V to 5.5VInternal1%LTM4650A-14.5V to 16V0.6V to 5.5VExternal1%ApplicationsFPGA, ASIC, μProcessor Core Voltage RegulationInformation, Communication Systems

The LTM®4650-2 is a dual 25A or single 50A output stepdown μModule®(micromodule) regulator with ±1.5% total DC output error. The package includes the switching controller, power FETs, inductors, and all supporting components. External compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors. AVP can further improve transient response and reduce the output capacitance. With synchronized multiphase parallel current sharing, six LTM4650-2 devices can deliver up to 300A.The LTM4650-2 is offered in a 16mm × 16mm × 5.01mm BGA package with SnPb or RoHS-compliant terminal finish.APPLICATIONSFPGA, ASIC, μProcessor Core Voltage RegulationInformation, Communication Systems

The LTM4650A is a dual 25A or single 50A output switching mode step-down DC/DC μModule®(micromodule) regulator with ±1% total DC output error. 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 16V, the LTM4650A supports two outputs with an output voltage range of 0.6V to 5.5V, each set by a single external resistor. Its high efficiency design delivers up to 25A continuous current for each output. Only a few input and output capacitors are needed. Fast internal control loop compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors.Fault protection features include overvoltage and overcurrent protection. The LTM4650A is offered in 16mm × 16mm × 5.01mm BGA package.LTM4650 Product Family Selection TableVINRangeVOUTRangeIOUTCompensationDC VOUTAccuracyLTM46504.5V to 15V0.6V to 1.8V25A × 2Internal1.5%LTM4650-1B4.5V to 15V0.6V to 1.8V25A × 2External1.5%LTM4650-1A4.5V to 15V0.6V to 1.8V25A × 2External0.8%LTM4650A4.5V to 16V0.6V to 5.5V25A × 2Internal1%LTM4650A-14.5V to 16V0.6V to 5.5V25A × 2External1%ApplicationsTelecom and Networking EquipmentStorage and ATCA CardsIndustrial Equipment

The LTM4650A-1 is a dual 25A or single 50A output switching mode step-down DC/DC μModule®(micromodule) regulator with ±1% total DC output error. 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 16V, the LTM4650A-1 supports two outputs with an output voltage range of 0.6V to 5.5V, each set by a single external resistor. Its high efficiency design delivers up to 25A continuous current for each output. Only a few input and output capacitors are needed. Adjustable control loop compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors.Fault protection features include overvoltage and overcurrent protection. The LTM4650A-1 is offered in 16mm × 16mm × 5.01mm BGA package.VINRangeVOUTRangeIOUTCompensationDC VoutAccuracyLTM46504.5V to 15V0.6V to 1.8V25A × 2Internal1.5%LTM4650-1B4.5V to 15V0.6V to 1.8V25A × 2External1.5%LTM4650-1A4.5V to 15V0.6V to 1.8V25A × 2External0.8%LTM4650A4.5V to 16V0.6V to 5.5V25A × 2Internal1%LTM4650A-14.5V to 16V0.6V to 5.5V25A × 2External1%ApplicationsTelecom and Networking EquipmentStorage and ATCA CardsIndustrial Equipment

The LTM4651 is an ultralow noise, 58V, 24W DC/DC μModule®inverting topology regulator. It regulates a negative output voltage (VOUT–) from a positive input supply voltage (VIN), and is designed to meet the radiated emissions requirements of EN55022. Conducted emission requirements can be met by adding standard filter components.Included in the package are the switching controller, power MOSFETs, inductor, filters and support components. The LTM4651 can regulate VOUT–to a value between –0.5V and –26.5V, provided that its input and output voltages adhere to the safe operating area criteria of the LTM4651: VIN+ |VOUT–| ≤ 58V. A switching frequency range of 250kHz to 3MHz is supported (400kHz default) and the module can synchronize to an external clock.Despite being an inverting topology regulator, no level shift circuitry is needed to interface to the LTM4651’s RUN, PGOOD or CLKIN pins; those pins are referenced to GND.The LTM4651 is offered in a 15mm × 9mm × 5.01mm BGA package with SnPb or RoHS compliant terminal finish.ApplicationsAvionics, Industrial Control and Test EquipmentVideo, Imaging and Instrumentation48V Telecom and Network Power SuppliesRF Systems

The LTM4652 is a source/sink dual ±25A or single ±50A output switching mode step-down DC/DC μModule®(micromodule) regulator with ±1.5% total DC output error. Included in the package are the switching controllers, power MOSFETs, inductors and all supporting components. Operating from an input voltage range of 4.5V to 18V, the LTM4652 supports two outputs with an output voltage range of 0.6V to 7.5V, each set by a single external resistor. Its high efficiency design delivers up to ±25A continuous current for each output. Only a few input and output capacitors are needed. Adjustable control loop compensation allows for fast transient response to minimize output capacitance when powering FPGAs, ASICs, and processors.Fault protection features include input and output overvoltage and bidirectional overcurrent protection. The LTM4652 is offered in a 16mm × 16mm × 4.92mm BGA package.APPLICATIONSTest and Measurement InstrumentationTelecom and Networking EquipmentIndustrial EquipmentProtected by U.S. Patents, including 5481178, 5705919, 5929620, 6100678, 6144194, 6177787, 6304066 and 6580258. Other patents pending.

The LTM4653 is an ultralow noise 58V, 4A DC/DC stepdown μModule®regulator designed to meet the radiated emissions requirements of EN55022. Conducted emission requirements can be met by adding standard filter components. Included in the package are the switching controller, power MOSFETs, inductor, filters and support components.Operating over an input voltage range of 3.1V to 58V, the LTM4653 supports an output voltage range of 0.5V to 94% of VIN, and a switching frequency range of 250kHz to 3MHz (400kHz default), each set by a single resistor. For high load currents, the LTM4653 can be paralleled in PolyPhase®operation and synchronized to an external clock. Only the bulk input and output filter capacitors are needed to finish the design.The LTM4653 is offered in a 15mm × 9mm × 5.01mm BGA package with SnPb or RoHS compliant terminal finish.APPLICATIONSAvionics, Industrial Control and Test EquipmentVideo, Imaging and Instrumentation48V Telecom and Network Power SuppliesRF Systems

The LTM4655 is an ultralow noise 40V, dual 4A or single 8A DC/DC μModule®regulator designed to meet the radiated emissions requirements of EN55022. Its channels are fully independent, parallelable and capable of delivering positive or negative output polarity. Conducted emission requirements can be met by adding standard filter components. Included in the package are the switching controllers, power MOSFETs, inductors, filters and support components. A 5V, 25mA LDO and clock generator enable phase interleaving of the power switching stages, for improved EMC performance.The LTM4655 can regulate positive VOUTn+voltages between 0.5V and 26.5V from a 3.1V to 40V input. The LTM4655 can regulate negative VOUTn–voltages between –0.5V and –26.5V from a maximum input range of 3.6V to 40V, with the span from VINnto VOUTn–not to exceed 40V. A switching frequency range of 250kHz to 3MHz is supported.The LTM4655 is offered in a 16mm × 16mm × 5.01mm BGA package with SnPb or RoHS compliant terminal finish.APPLICATIONSAutomated Test and MeasurementAvionics and Industrial Control SystemsVideo, Imaging and Instrumentation

The LTM4656 is a complete high efficiency boost μModule®(power module) regulator with the switching controller, power FETs, inductor, and all supporting components. Only a few input and output capacitors are needed. Operating over an input voltage range of 4.5V to 28V, the LTM4656 supports an output voltage range of 6V to 36V, set by a single external resistor. Its high efficiency design delivers up to 5A continuous output current. An in-line protection circuit sets the maximum input current, and will trip off the input power if exceeded and retry (see Typical Applications section on data sheet).The high density boost design can convert up to 180W of output power.Fault protection features include overtemperature protection, and overcurrent protection input referred with auto-retry. The μmodule is offered in a space saving and thermally enhanced 16mm × 16mm × 7.07mm BGA package. The LTM4656 is Pb-free and RoHS compliant.APPLICATIONSTelecom and Networking EquipmentElectronic Test Equipment