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Overview
Features and Benefits
- Complete Buck-Boost Switch Mode Power Supply
- VOUT Equal, Greater, Less Than VIN
- Wide Input Voltage Range: 5V to 36V
- 12V/3A Output from 6VIN
- 12V/6A Output from 12VIN
- 12V/8.5A Output from 24VIN
- Up to 97.5% Efficient
- Adjustable Input and Output Average Current Limits
- Input and Output Current Monitors
- Parallelable for Increased Output Current
- Wide Output Voltage Range: 1.2V to 36V
- Selectable Switching Frequency: 100kHz to 800kHz
- Synchronization from 200kHz to 700kHz
- 15mm × 15mm × 4.92mm BGA Package
Product Details
The LTM8055 is a 36VIN, buck-boost µModule® (micromodule) regulator. Included in the package are the switching controller, power switches, inductor and support components. A resistor to set the switching frequency, a resistor divider to set the output voltage, and input and output capacitors are all that are needed to complete the design. Other features such as input and output average current regulation may be implemented with just a few components. The LTM8055 operates over an input voltage range of 5V to 36V, and can regulate output voltages between 1.2V and 36V. The SYNC input and CLKOUT output allow easy synchronization.
The LTM8055 is housed in a compact overmolded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8055 is RoHS compliant.
| LTM8054 | LTM8055 | LTM8056 | |
| VIN (Operation) | 36 | 36 | 58 |
| VIN Abs Max | 40 | 40 | 60 |
| VOUT Abs Max | 40 | 40 | 60 |
| IOUT (Peak) 24VIN, 12VOUT | 5.4 | 8.5 | 5.5 |
| Package | 15 × 11.25mm × 3.42mm BGA | 15 × 15mm × 4.92mm BGA Pin and Function Compatible | |
Applications
- High Power Battery-Operated Devices
- Industrial Control
- Solar Powered Voltage Regulator
- Solar Powered Battery Charging
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)
Documentation
Reliability Data (1)
Evaluation Kit Manuals (1)
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.
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:
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.
To open the project file for this circuit:
Step 1: Download and install LTpowerCAD on your computer.
Step 2: Click on the link(s) in the section below to download part-specific project files.
Step 3: If the project file doesn't run, right-click the link and select "Save Target As." Then start the LTpowerCAD tool and open the project file by selecing "Open Project" from the "File" menu.
LTpowerCAD Project Files
Design tools for the following parts are available in LTpowerCAD:
Reference Materials
Informational (1)
Press Releases (1)
Design Resources
ADI has always placed the highest emphasis on delivering products that meet the maximum levels of quality and reliability. We achieve this by incorporating quality and reliability checks in every scope of product and process design, and in the manufacturing process as well. "Zero defects" for shipped products is always our goal.
Discussions
LTM8055 Discussions
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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.
