LTM8057

PRODUCTION

3.1VIN to 31VIN Isolated μModule (Power Module) DC/DC Converter

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Overview

  • 2kV AC Isolated μModule Converter (Tested at 3kVDC)
  • UL60950 Recognized File 464570
  • Wide Input Voltage Range: 3.1V to 31V
  • Up to 440mA Output Current (VIN = 24V, VOUT1 = 2.5V) Output Adjustable from 2.5V to 12V
  • Current Mode Control
  • Programmable Soft-Start
  • User Configurable Undervoltage Lockout
  • Low Profile (9mm × 11.25mm × 4.92mm) BGA Package

The LTM8057 is a 2kV AC isolated flyback μModule® (power module) DC/DC converter. Included in the package are the switching controller, power switches, transformer, and all support components. Operating over an input voltage range of 3.1V to 31V, the LTM8057 supports an output voltage range of 2.5V to 12V, set by a single resistor. Only output and input capacitors are needed to finish the design. Other components may be used to control the soft-start control and biasing.

The LTM8057 is packaged in a thermally enhanced, compact (9mm × 11.25mm × 4.92mm) overmolded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8057 is available with SnPb or RoHS compliant terminal finish.

Applications

  • Industrial Sensors
  • Industrial Switches
  • Test and Measurement Equipment
LTM8057
3.1VIN to 31VIN Isolated μModule (Power Module) DC/DC Converter
2kV AC Isolated μModule Regulator Maximum Output Current vs VIN Product Package 1
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Documentation

Data Sheet 1

Reliability Data 1

User Guide 1

Technical Articles 1

Safety and Regulatory Compliance 1

Data Sheet

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

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Tools & Simulations

LTspice 1

Models for the following parts are available in LTspice:

  • LTM8057
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.

Evaluation Kits

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schematic 1
schematic 2
DC1987A

LTM8057 Demo Board | 2kV AC Isolated Flyback µModule Converter, 4.5V ≤ VIN ≤ 29V, VOUT = 5V @ Up to 350mA

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Product Details

The Demo circuit 1987A is a 2kV AC isolated flyback μModule® DC/DC converter featuring the LTM8057. The demo circuit is designed for a 5V flyback output from a 4.5V to 29V input. The typical current capability of the 5V flyback output varies with input voltage from about 110mA at 4.5VIN to about 350mA at 29VIN. Figure 1 shows the typical maximum output current on VOUT. R1 provides the necessary minimum load current to keep the VOUT in regulation throughout the entire input voltage range. Please see the typical performance characteristic curves in the LTM8057 data sheet to determine the minimum load current for other input/output configurations.
DC1987A
LTM8057 Demo Board | 2kV AC Isolated Flyback µModule Converter, 4.5V ≤ VIN ≤ 29V, VOUT = 5V @ Up to 350mA
DC1987A Demo Board DC1987A - Schematic

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