LTM4641
LTM4641 is DC/DC uModule Regulator manufactured by Linear Technology.
Features n Wide Operating Input Voltage Range: 4.5V to 38V n10A DC Typical, 12A Peak Output Current n Output Range: 0.6V to 6V n±1.5% Maximum Total Output DC Voltage Error n Differential Remote Sense Amplifierfor POLRegulation n Internal Temperature, Analog Indicator Output n Overcurrent Foldback and Overtemperature
Protection n Current Mode Control/Fast Transient Response n Parallelable for Higher Output Current n Selectable Pulse-Skipping Operation n Soft-Start/Voltage Tracking/Pre-Bias Start-Up n15mm × 15mm × 5.01mm BGA Package n Sn Pb or Ro HS pliant Finish Input Protection n UVLO, Overvoltage Shutdown and Latchoff Thresholds n N-Channel Overvoltage Power-Interrupt MOSFET Driver n Surge Stopper Capable with Few External ponents Load Protection n Robust, Resettable Latchoff Overvoltage Protection n N-Channel Overvoltage Crowbar Power MOSFET Driver
Applications n Ruggedized Electronics n Avionics and Industrial Equipment
LTM4641 38V, 10A DC/DC µModule Regulator with Advanced Input and Load Protection Description
The LTM®4641 is a switch mode step-down DC/DC µModule® (micromodule) regulator with advanced input and load protection Features
. Trip detection thresholds for the following faults are customizable: input undervoltage, overtemperature, input overvoltage and output overvoltage. Select fault conditions can be set for latchoff or hysteretic restart response- or disabled. Included in the package are the switching controller and housekeeping ICs, power MOSFETs, inductor, overvoltage drivers, biasing circuitry and supporting ponents. Operating from input voltages of 4V to 38V (4.5V start-up), the device supports output voltages from 0.6V to 6V, set by an external resistor network remote sensing the point-of-load’s voltage.
The LTM4641’s high efficiency design can deliver up to 10A continuous current with a few input and output capacitors. The regulator’s constant on-time current mode control architecture enables high step-down ratios and...