
Linear Technology
DESCRIPTION
The LTM®4619 is a complete dual 4A or single 8A stepdown DC/DC µModule®(micromodule) regulator. Included in the package are the switching controller, power FETs, inductor, and all support components. Operating over input voltage ranges of 4.5V to 26.5V, the LTM4619 supports two outputs with voltage ranges of 0.8V to 5V, each set by a single external resistor. Its high efficiency design delivers 4A continuous current (5A peak) for each output.
FEATURES
■ Complete Standalone Power Supply
■ Wide Input Voltage Range: 4.5V to 26.5V
(EXTVCC Available for VIN ≤ 5.5V)
■ Dual 180° Out-of-Phase Outputs with 4A DC
Typical, 5A Peak Output Current for Each
■ Dual Outputs with 0.8V to 5V Range
■ Output Voltage Tracking
■ ±1.5% Maximum Total DC Output Error
■ Current Mode Control/Fast Transient Response
■ Power Good
■ Phase-Lockable Fixed Frequency 250kHz to 780kHz
■ On Board Frequency Synchronization
■ Parallel Current Sharing
■ Selectable Burst Mode® Operation
■ Output Overvoltage Protection
■ 15mm × 15mm × 2.82mm LGA Package
APPLICATIONS
■ Telecom and Networking Equipment
■ Servers
■ Storage Cards
■ ATCA Cards
■ Industrial Equipment
■ Point of Load Regulation