LTM8031

PRODUCTION

Ultralow Noise EMC 36V, 1A DC/DC μModule (Power Module) Regulator

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Overview

  • Complete Step-Down Switch Mode Power Supply
  • Wide Input Voltage Range: 3.6V to 36V
  • 1A Output Current
  • 0.8V to 10V Output Voltage
  • Switching Frequency from 200kHz to 2.4MHz
  • EN55022 Class B Compliant with Margin
  • Current Mode Control
  • (e4) RoHS Compliant Package with Gold Pad Finish
  • Programmable Soft-Start
  • Pin Compatible with the LTM8032
  • Low Profile (9mm × 15mm × 2.82mm) Surface Mount LGA Package

The LTM8031 is an electromagnetic compatible (EMC) 36V, 1A DC/DC μModule® (power module) buck converter designed to meet the radiated emissions requirements of EN55022. Conducted emission requirements can be met by adding standard filter components. Included in the package are the switching controller, power switches, inductor, filters and all support components. Operating over an input voltage range of 3.6V to 36V, the LTM8031 supports an output voltage range of 0.8V to 10V, and a switching frequency range of 200kHz to 2.4MHz, each set by a single resistor. Only the bulk input and output filter capacitors are needed to finish the design. The low profile package (2.82mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation.

The LTM8031 is packaged in a thermally enhanced, compact (9mm × 15mm) and low profile (2.82mm) overmolded land grid array (LGA) package suitable for automated assembly by standard surface mount equipment. The LTM8031 is RoHS compliant.

Applications

  • Automotive Battery Regulation
  • Power for Portable Products
  • Distributed Supply Regulation
  • Industrial Supplies
  • Wall Transformer Regulation
LTM8031
Ultralow Noise EMC 36V, 1A DC/DC μModule (Power Module) Regulator
Ultralow Noise 5V/1A DC/DC µModule Regulator LTM8031 EMI Performance Product Package 1
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Documentation

Data Sheet 1

Reliability Data 2

User Guide 1

Technical Articles 1

Data Sheet

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

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Software Resources

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Hardware Ecosystem

Parts Product Life Cycle Description
Circuit Monitors 1
LTC2960
RECOMMENDED FOR NEW DESIGNS 36V Nano-Current Two-Input Voltage Monitor
Oscillators 1
LTC6909
PRODUCTION 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation
Power System Management (PSM) & Sequencers 1
LTC2974
RECOMMENDED FOR NEW DESIGNS 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement
Protection Switches & Controllers 1
LTC4364
RECOMMENDED FOR NEW DESIGNS Surge Stopper with Ideal Diode
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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTM8031
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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.

Evaluation Kits

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schematic 5
DC1597A

LTM8031EV Demo Board | Ultralow EMI 36V, 1A µModule Regulator

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Product Details

Demonstration circuit DC1597A features the LTM8031, a step-down converter certified to meet the EN55022 radiated emissions standard. The LTM8031 is configured to deliver a 3.3V output from a 5V to 36V input with a 750kHz operating frequency. The wide input range supports a variety of input sources, such as automotive batteries, wall adaptors and industrial supplies. Under light load conditions, the LTM8031 enters Burst Mode® operation to deliver high efficiency over a broad current range and maintain low output ripple.
DC1597A
LTM8031EV Demo Board | Ultralow EMI 36V, 1A µModule Regulator
DC1597A Demo Board DC1597A Demo Board DC1597A Demo Board DC1597A Demo Board DC1597A - Schematic

Latest Discussions

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