LTM4630-1 Series
Dual 18A or Single 36A μModule (Power Module) Regulator with 0.8% DC and 3% Transient Accuracy
Manufacturer: Analog Devices
Catalog
Dual 18A or Single 36A μModule (Power Module) Regulator with 0.8% DC and 3% Transient Accuracy
Key Features
• Dual 18A or Single 36A Output
• Input Voltage Range: 4.5V to 18V (after date code 1720*)
• Output Voltage Range: 0.6V to 8V (after date code 1720*)
• ±1.5% Maximum Total DC Output Error Over Line, Load and Temperature
• Higher Light Load Efficiency and Wider VOUTRange Than LTM4630
• Differential Remote Sense Amplifier
• Current Mode Control/Fast Transient Response
• Multiphase Parallel Current Sharing Up to 144A
• Internal Temperature Monitor
• Pin Compatible with the LTM4620A (Dual 13A, Single 26A) and LTM4630 (Dual 18A, Single 36A)
• Adjustable Switching Frequency or Synchronization
• Overcurrent Foldback Protection
• Selectable Burst Mode®Operation, Pulse Skipping Mode Operation
• Soft-Start/Voltage Tracking
• Output Overvoltage Protection
• 16mm × 16mm × 4.41mm LGA and 16mm × 16mm × 5.01mm BGA Packages
Description
AI
The LTM4630A is a dual 18A or single 36A output switching mode step-down DC/DC µModule®(micromodule) regulator with wider VOUTrange and higher efficiency than LTM4630. 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 18V, the LTM4630A supports two outputs each with an output voltage range of 0.6V to 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 LTM4630A is pin compatible with the LTM4620 and LTM4620A (dual 13A, single 26A) and the LTM4630 (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 LTM4630A is offered in 16mm × 16mm × 4.41mm LGA and 16mm × 16mm × 5.01mm BGA packages.*Maximum VIN= 15V and VOUT= 5.3V with date code before 1720FeaturesVOUTLTM46300.6V to 1.8VLTM4630-10.8% DC and 3% Transient Accuracy0.6V to 1.8VLTM4630AHigher Light Load Efficiency0.6V to 5.3VApplicationsTelecom and Networking EquipmentStorage and ATCA CardsIndustrial Equipment