Overview
Features and Benefits
- Complete Standalone Power Supply
- Wide Input Voltage Range: 2.375V to 5.5V
- 4A DC, 5A Peak Output Current
- 0.8V to 5V Output
- Output Voltage Tracking
- ±2% Maximum Total DC Output Error
- UltraFast™ Transient Response
- Current Mode Control
- Current Foldback Protection, Parallel/Current Sharing
- Small and Very Low Profile Package: 15mm × 9mm × 2.32mm LGA
Product Details
The LTM4604 is a complete 4A switch mode step-down μModule® (power module) regulator. Included in the package are the switching controller, power FETs, inductor and all support components. Operating over an input voltage range of 2.375V to 5.5V, the LTM4604 supports an output voltage range of 0.8V to 5V, set by a single resistor. This high efficiency design delivers up to 4A continuous current (5A peak). Only bulk input and output capacitors are needed to complete the design.
The low profile package (2.32mm) enables utilization of unused space on the bottom of PC boards for high density point of load regulation. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability. The device supports output voltage tracking for supply rail sequencing.
Fault protection features include foldback current protection, thermal shutdown and a programmable soft-start function. The LTM4604 is offered in a RoHS compliant 15mm × 9mm × 2.32mm LGA package.
For easier PC board layout and assembly due to increased spacing between land grid pads, please refer to the LTM4604A.
| Notes | |
| LTM4604 | - |
| LTM4604A | 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 and Networking Equipment
- Servers, ATCA Cards
- Industrial Equipment
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.
Documentation & Resources
-
R504 Reliability Data3/26/2018PDF347 K
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.
LTspice Simulations
Models for the following parts are available in LTspice:
LTM4604
LTM4604A
Reference Designs (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.View our quality and reliability program and certifications for more information.
| Part Number | Material Declaration | Reliability Data | Pin/Package Drawing | CAD Symbols, Footprints & 3D Models |
|---|---|---|---|---|
| LTM4604EV#PBF | Material Declaration | Reliability Data | 66-Lead LGA (15mm x 9mm x 2.32mm) | |
| LTM4604IV#PBF | Material Declaration | Reliability Data | 66-Lead LGA (15mm x 9mm x 2.32mm) | |
| Wafer Fabrication Data | R504 Reliability Data |
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