LTC3418 - 8A, 4MHz, Monolithic Synchronous Step-Down Regulator

The LTC3418 can be configured for either Burst Mode operation or forced continuous operation. Forced continuous operation reduces noise and RF interference while Burst Mode operation provides high efficiency by reducing gate charge losses at light loads. In Burst Mode operation, external control of the burst clamp level allows the output voltage ripple to be adjusted according to the requirements of the application. A tracking input in the LTC3418 allows for proper sequencing with respect to another power supply.

Features
  • High Efficiency: Up to 95%
  • 8A Output Current
  • 2.25V to 5.5V Input Voltage Range
  • Low RDS(ON) Internal Switch: 35mΩ
  • Tracking Input to Provide Easy Supply Sequencing
  • Programmable Frequency: 300kHz to 4MHz
  • 0.8V ±1% Reference Allows Low Output Voltage
  • Quiescent Current: 380μA
  • Selectable Forced Continuous/Burst Mode® Operation with Adjustable Burst Clamp
  • Synchronizable Switching Frequency
  • Low Dropout Operation: 100% Duty Cycle
  • Power Good Output Voltage Monitor
  • Overtemperature Protected
  • 38-Lead Low Profile (0.75mm) Thermally Enhanced QFN (5mm × 7mm) Package
Typical Application

Applications
  • Microprocessor, DSP and Memory Supplies
  • Distributed 2.5V, 3.3V and 5V Power Systems
  • Automotive Applications
  • Point of Load Regulation
  • Notebook Computers
Packaging
Order Information
Part NumberPackageTempPrice(1-99)Price (1k)*
LTC3418EUHF#PBF5x7 QFN-38E$8.19$5.73
LTC3418EUHF#TRPBF5x7 QFN-38E$5.79
Demo Boards
Part NumberDescriptionPrice
DC785ALTC3418EUHF Demo Board | 2.25V ≤ VIN ≤ 5.5V, Vout = 1.2V/1.5V/1.8V @ 8A$100.00
Datasheet
Reliability Data
LT Journal
Press Release
LTspice
LTpowerCAD
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LTC3418 Footprints and Symbols
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