LTM4630A - Dual 18A or Single 36A DC/DC μModule (Power Module) Regulator

The LTM®4630A is a dual 18A or single 36A output switching mode step-down DC/DC μModule® (power module) regulator with wider VOUT range 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 15V, the LTM4630A supports two outputs each with an output voltage range of 0.6V to 5.3V, 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.

Features
  • Dual 18A or Single 36A Output
  • Input Voltage Range: 4.5V to 15V
  • Output Voltage Range: 0.6V to 5.3V
  • ±1.5% Maximum Total DC Output Error Over Line, Load and Temperature
  • Higher Light Load Efficiency and Wider VOUT Range 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
Typical Application
LTM4630A Typical Application
LTM4630A Typical Application
Applications
  • Telecom and Networking Equipment
  • Storage and ATCA Cards
  • Industrial Equipment
Packaging
LTM4630A Package Drawing
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTM4630AEV#PBF16mm x 16mm x 4.41mm LGAE$51.86$36.30
LTM4630AEY#PBF16mm x 16mm x 5.01mm BGAE$53.29$37.30
LTM4630AIV#PBF16mm x 16mm x 4.41mm LGAI$56.93$39.85
LTM4630AIY#PBF16mm x 16mm x 5.01mm BGAI$58.36$40.85
Demo Boards
Part NumberDescriptionPrice
DC2152ALTM4630A Demo Board | Dual 18A Step-Down uModule Regulator, 6V ≤ VIN ≤ 15V, Vout1/Vout2 = 3.3V/5V @ 18A$65.00
Datasheet
Reliability Data
Product Selector Card
CAD Symbol
LTspice
Related Products
LTM4630A - Dual 18A or Single 36A DC/DC μModule Regulator
R504 - Reliability Data
μModule Power Products Catalog
LTM4630A Footprints and Symbols
LTM4630A Demo Circuit - High Efficiency Dual 18A Buck with Output Tracking (6-15V to 3.3 V & 5.0V @ 18A)