Features and Benefits
- Complete Step-Down Switch Mode Power Supply
- Low Noise Silent Switcher® Architecture
- CISPR22 Class B Compliant
- Wide Input Voltage Range: 3.6V to 60V
- Wide Output Voltage Range: 0.97V to 15V
- 5A Continuous Output Current at 24IN, 3.3VOUT, TA = 85°C
- 7.25A Peak Current at 12VIN, 3.3VOUT
- Parallelable for Increased Output Current
- Selectable Switching Frequency: 200kHz to 2.2MHz
- Programmable Soft-Start
- 9mm × 11.25mm × 3.32mm RoHS Compliant BGA Package
The LTM8071 is a 60VIN, 5A (continuous) step-down Silent Switcher µModule® (power module) regulator. The Silent Switcher architecture minimizes EMI while delivering high efficiency at frequencies up to 2.2MHz. Included in the package are the switching controller, power switches, inductor, and all support components. Operating over an input voltage range of 3.6V to 60V, the LTM8071 supports an output voltage range of 0.97V to 15V and a switching frequency range of 200kHz to 2.2MHz, each set by a single resistor. Only the input and output filter capacitors are needed to finish the design.
The LTM8071 is packaged in a compact over-molded ball grid array (BGA) package suitable for automated assembly by standard surface mount equipment. The LTM8071 is available with SnPb (BGA) or RoHS compliant terminal finish.
- Test and Measurement Equipment
- Distributed Supply Regulation
- Industrial Supplies
- Wall Transformer Regulation
Product Lifecycle Recommended for New Designs
This product has been released to the market. The data sheet contains all final specifications and operating conditions. For new designs, ADI recommends utilization of these products.
Evaluation Kits (1)
Demonstration circuit 2387A features the LTM8071 µModule® regulator, a high performance, high efficiency Silent Switcher® step-down regulator. The LTM8071 is a complete DC/DC point-of-load regulator in a thermally enhanced 11.25mm × 9mm × 3.32mm BGA package. The demo board has an input voltage range of 7V to 60V and provides an output current up to 5A. The output voltage is set to 5V on DC2387A. The Silent Switcher design minimizes EMI while delivering high efficiency. Input EMI filtering is available by applying the input voltage to the VEMI turret. Spread spectrum mode can be enabled using the SYNC jumper (JP1) to further reduce EMI emissions. External clock synchronization is available through the SYNC/MODE pin. For high efficiency at low load currents, burst or pulse-skipping modes can be selected with the SYNC jumper (JP1). The LTM8071 data sheet must be read in conjunction with this demo manual for working on or modifying DC2387A.
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.
Models for the following parts are available in LTspice:
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:
Product Selection Guide (1)
Technical Articles (1)
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.
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.