Features and Benefits
- 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.
- Industrial Sensors
- Industrial Switches
- Test and Measurement Equipment
Product Lifecycle Production
At least one model within this product family is in production and available for purchase. The product is appropriate for new designs but newer alternatives may exist.
Evaluation Kits (1)
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.
Tools & Simulations
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.
To launch ready-to-run LTspice demonstration circuits for this part:
Step 1: Download and install LTspice on your computer.
Step 2: Click on the link in the section below to download a demonstration circuit.
Step 3: If LTspice does not automatically open after clicking the link below, you can instead run the simulation by right clicking on the link and selecting “Save Target As.” After saving the file to your computer, start LTspice and open the demonstration circuit by selecting ‘Open’ from the ‘File’ menu.
Models for the following parts are available in LTspice:
Product Selector Card (3)
Technical Articles (1)
Press Release (1)
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Sample & Buy
The USA list pricing shown is for BUDGETARY USE ONLY, shown in United States dollars (FOB USA per unit for the stated volume), and is subject to change. International prices may differ due to local duties, taxes, fees and exchange rates. For volume-specific price or delivery quotes, please contact your local Analog Devices, Inc. sales office or authorized distributor. Pricing displayed for Evaluation Boards and Kits is based on 1-piece pricing.