LTM4641

RECOMMENDED FOR NEW DESIGNS

38V, 10A DC/DC µModule (Power Module) Regulator with Advanced Input and Load Protection

Part Models
5
1ku List Price
Starting From $30.55
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Part Details

  • Wide Operating Input Voltage Range: 4.5V to 38V
  • 10A DC Typical, 12A Peak Output Current
  • Output Range: 0.6V to 6V
  • ±1.5% Maximum Total Output DC Voltage Error
  • Differential Remote Sense Amplifier for POL Regulation
  • Internal Temperature, Analog Indicator Output
  • Overcurrent Foldback and Overtemperature Protection
  • Current Mode Control/Fast Transient Response
  • Parallelable for Higher Output Current
  • Selectable Pulse-Skipping Operation
  • Soft-Start/Voltage Tracking/Pre-Bias Start-Up
  • 15mm × 15mm × 5.01mm BGA Package
  • SnPb or RoHS Compliant Finish
 Input Protection
  • UVLO, Overvoltage Shutdown and Latchoff Thresholds
  • N-Channel Overvoltage Power-Interrupt MOSFET Driver
  • Surge Stopper Capable with Few External Components
Load Protection
  • Robust, Resettable Latchoff Overvoltage Protection
  • N-Channel Overvoltage Crowbar Power MOSFET Driver
LTM4641
38V, 10A DC/DC µModule (Power Module) Regulator with Advanced Input and Load Protection
μModule Regulator with Input Disconnect and Fast Crowbar Output Overvoltage Protection 1V Load Protected from MTOP Short-Circuit at 38VIN Product Package 1
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Documentation

Data Sheet

This is the most up-to-date revision of the Data Sheet.

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Hardware Ecosystem

Parts Product Life Cycle Description
µModule Buck Regulators 1
LTM4649 RECOMMENDED FOR NEW DESIGNS 10A Step-Down DC/DC μModule (Power Module) Regulator
Digital Power System Managers 1
LTC2974 RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Surge Stopper, Overvoltage, and Overcurrent Protection 1
LT4363 RECOMMENDED FOR NEW DESIGNS High Voltage Surge Stopper with Current Limit
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Tools & Simulations

LTspice

LTspice® is a powerful, fast and free simulation software, schematic capture and waveform viewer with enhancements and models for improving the simulation of analog circuits.

LTpowerCAD

LTpowerCAD® is a power supply design program which selects power stage components, provides detailed power efficiency, shows quick loop Bode plot stability and load transient analysis, and can export to LTspice for simulation.


Evaluation Kits

eval board
DC1543B

LTM4641 Demo Board | 38V, 10A, Step-Down μModule Regulator with Advanced Input and Load Protection

Product Details

Demonstration circuit 1543B features the LTM4641, a high efficiency, high density switch mode step-down power μModule regulator with superior input and load protection features. The input voltage range is from 4.5V to 38V. The output voltage is jumper programmable from 0.8V to 6V with a rated load current of 10A. Derating is necessary for certain VIN, VOUT, frequency and thermal conditions. DC1543B offers the TRACK/SS pin allowing the user to program output tracking or soft-start period. The DC1543B allows the user to enable/disable input undervoltage protection; input latching/non-latching overvoltage protection; and latching/non-latching overtemperature protection.

Higher efficiency at low load currents is achieved by setting the MODE pin jumper to DCM. The LTM4641 data sheet must be read in conjunction with the demo manual prior to working on or modifying demo circuit 1543B.

eval board
DC1543A

OBSOLETE: LTM4641 Demo Board | Buck µModule Regulator, Input and Load Protection, 4.5V ≤ VIN ≤ 38V, VOUT = 0.6V to 6V at 10A

Product Details

This evaluation board is obsolete and no longer recommended. The replacement board is the DC1543B.

Demonstration circuit 1543A features the LTM4641, a high efficiency, high density switch mode step-down power µModule regulator with superior input and load protection features. The input voltage range is from 4.5V to 38V. The output voltage is jumper programmable from 0.8V to 6V with a rated load current of 10A. Derating is necessary for certain VIN, VOUT, frequency and thermal conditions.

DC1543B
LTM4641 Demo Board | 38V, 10A, Step-Down μModule Regulator with Advanced Input and Load Protection
DC1543B Evaluation Board
DC1543A
OBSOLETE: LTM4641 Demo Board | Buck µModule Regulator, Input and Load Protection, 4.5V ≤ VIN ≤ 38V, VOUT = 0.6V to 6V at 10A
DC1543A Demo Board DC1543A Demo Board DC1543A Demo Board DC1543A Demo Board DC1543A - Schematic

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