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LTM4608A
Low VIN, 8A DC/DC μModule (Power Module) Regulator with Tracking, Margining, and Frequency Synchronization
Overview
Features and Benefits
- Complete Standalone Power Supply
- ±1.75% Total DC Output Error (–55°C to 125°C)
- 2.7V to 5.5V Input Voltage Range
- 8A DC, 10A Peak Output Current
- 0.6V Up to 5V Output
- Output Voltage Tracking and Margining
- Power Good Tracks Margining
- Multiphase Operation
- Parallel Current Sharing
- On-board Frequency Synchronization
- Spread Spectrum Frequency Modulation
- Overcurrent/Thermal Shutdown Protection
- Current Mode Control/Fast Transient Response
- Selectable Burst Mode® Operation
- Up to 95% Efficiency
- Output Overvoltage Protection
- 9mm × 15mm × 2.82mm LGA and 9mm × 15mm × 3.42mm BGA Packages
Product Details
The LTM4608A is a complete 8A switch mode DC/DC power supply with ±1.75% total output voltage error. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 2.7V to 5.5V, the LTM4608A supports an output voltage range of 0.6V to 5V, set by a single external resistor. This high efficiency design delivers up to 8A continuous current (10A peak). Only bulk input and output capacitors are needed to complete the design.
The low profile package (2.82mm) enables utilization of unused space on the back side of PC boards for high density point-of-load regulation. The 0.630mm LGA pads with 1.27mm pitch simplify PCB layout by providing standard trace routing and via placement. The high switching frequency and current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports frequency synchronization, programmable multiphase and/or spread spectrum operation, output voltage tracking for supply rail sequencing and voltage margining.
Fault protection features include overvoltage protection, overcurrent protection and thermal shutdown. The LTM4608A is offered in 9mm × 15mm × 2.82mm LGA and 9mm × 15mm × 3.42mm BGA packages. The LTM4608A is available with SnPb (BGA) or RoHS compliant terminal finish.
| Notes | |
| LTM4608 | - |
| LTM4608A | Smaller pad sizes provide more distance between adjacent pads therefore there is less chance of solder paste or solder spreading outside the pad area |
Applications
- Telecom, Networking and Industrial Equipment
- Storage Systems
- Point of Load Regulation
Product Categories
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
Tools & Simulations
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Reference Materials
Product Selector Card (2)
Informational (1)
Technical Articles (1)
Webcasts (1)
Design Resources
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PCN-PDN Information
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Evaluation Boards
Pricing displayed is based on 1-piece.
Up to two boards can be purchased through Analog.com. To order more than two, please purchase through one of our listed distributors.
Pricing displayed is based on 1-piece. The USA list pricing shown is for budgetary use only, shown in United States dollars (FOB USA per unit), and is subject to change. International prices may vary due to local duties, taxes, fees and exchange rates.