LTM4628
PRODUCTIONDual 8A or Single 16A DC/DC μModule (Power Module) Regulator
- Part Models
- 5
- 1ku List Price
- Starting From $29.63
Overview
- Complete Standalone Dual Power Supply
- Single 16A or Dual 8A Output
- Wide Input Voltage Range: 4.5V to 26.5V
- Output Voltage Range: 0.6V to 5.5V
- ±1.5% Total DC Output Error
- Differential Remote Sense Amplifier
- Current Mode Control/Fast Transient Response
- Adjustable Switching Frequency
- Overcurrent Foldback Protection
- Multiphase Parallel Current Sharing with Multiple LTM4628s
- Frequency Synchronization
- Internal Temperature Sensing Diode Output
- Selectable Burst Mode® Operation
- Soft-Start/Voltage Tracking
- Output Overvoltage Protection
- Small Surface Mount Footprint, Low Profile 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA Packages
The LTM4628 is a complete dual 8A output switching mode DC/DC power supply and can be easily configured to provide a single 2-phase 16A output. Included in the package are the switching controller, power FETs, inductor, and all supporting components. Operating from an input voltage range of 4.5V to 26.5V, the LTM4628 supports two outputs each with an output voltage range of 0.6V to 5.5V, set by a single external resistor. Its high efficiency design delivers 8A continuous current for each output. Only a few input and output capacitors are needed.
The device supports frequency synchronization, multiphase operation, Burst Mode operation and output voltage tracking for supply rail sequencing. It has an on-board temperature diode for device temperature monitoring. High switching frequency and a current mode architecture enable a very fast transient response to line and load changes without sacrificing stability.
Fault protection features include overvoltage and overcurrent protection. The power module is offered in space saving and thermally enhanced 15mm × 15mm × 4.32mm LGA and 15mm × 15mm × 4.92mm BGA packages. The LTM4628 is available with SnPb (BGA) or RoHS compliant terminal finish.
Applications
- Telecom and Networking Equipment
- Storage and ATCA Cards
- Industrial Equipment
Documentation
Data Sheet 1
User Guide 1
Technical Articles 1
Video 1
Product Selector Card 2
Brochure 1
Webcast 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. View our quality and reliability program and certifications for more information.
| Part Model | Pin/Package Drawing | Documentation | CAD Symbols, Footprints, and 3D Models |
|---|---|---|---|
| LTM4628EV#PBF | 144-Lead LGA (15mm x 15mm x 4.32mm) | ||
| LTM4628EY#PBF | 144-Lead BGA (15mm x 15mm x 4.92mm) | ||
| LTM4628IV#PBF | 144-Lead LGA (15mm x 15mm x 4.32mm) | ||
| LTM4628IY | 144-Lead BGA (15mm x 15mm x 4.92mm) | ||
| LTM4628IY#PBF | 144-Lead BGA (15mm x 15mm x 4.92mm) |
| Part Models | Product Lifecycle | PCN |
|---|---|---|
|
Aug 7, 2023 - 23_0141 LTM4628 Data Sheet Revision |
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| LTM4628EV#PBF | PRODUCTION | |
| LTM4628EY#PBF | PRODUCTION | |
| LTM4628IV#PBF | PRODUCTION | |
| LTM4628IY | PRODUCTION | |
| LTM4628IY#PBF | PRODUCTION | |
|
Jul 28, 2021 - 20_0245 Notification of Wafer Fab Location Change for 0.6µm BICMOS Process Devices from ADI Milpitas (Hillview) to Vanguard Int. (Taiwan) |
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| LTM4628EV#PBF | PRODUCTION | |
| LTM4628EY#PBF | PRODUCTION | |
| LTM4628IV#PBF | PRODUCTION | |
| LTM4628IY | PRODUCTION | |
| LTM4628IY#PBF | PRODUCTION | |
|
Jul 21, 2021 - 21_0159 Ink Mark to Laser Mark Conversion for µModule |
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| LTM4628EV#PBF | PRODUCTION | |
| LTM4628EY#PBF | PRODUCTION | |
| LTM4628IV#PBF | PRODUCTION | |
| LTM4628IY | PRODUCTION | |
| LTM4628IY#PBF | PRODUCTION | |
|
Feb 28, 2020 - 20_0123 Micro-Module, Test Site Transfer from Analog Devices Singapore to Analog Devices Penang, Malaysia |
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| LTM4628EV#PBF | PRODUCTION | |
| LTM4628EY#PBF | PRODUCTION | |
| LTM4628IV#PBF | PRODUCTION | |
| LTM4628IY | PRODUCTION | |
| LTM4628IY#PBF | PRODUCTION | |
|
Nov 20, 2023 - 23_0180 New Tray Design for BGA Package |
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| LTM4628EY#PBF | PRODUCTION | |
| LTM4628IY | PRODUCTION | |
| LTM4628IY#PBF | PRODUCTION | |
This is the most up-to-date revision of the Data Sheet.
Software Resources
Can't find the software or driver you need?
Request a Driver/SoftwareHardware Ecosystem
| Parts | Product Life Cycle | Description |
|---|---|---|
| Hot Swap Controllers 1 | ||
| LT4363 | RECOMMENDED FOR NEW DESIGNS | High Voltage Surge Stopper with Current Limit |
| Oscillators 1 | ||
| LTC6909 | PRODUCTION | 1 to 8 Output, Multiphase Silicon Oscillator with Spread Spectrum Modulation |
| Power System Management (PSM) & Sequencers 1 | ||
| LTC2974 | RECOMMENDED FOR NEW DESIGNS | 4-Channel PMBus Power System Manager Featuring Accurate Output Current Measurement |
| Temperature Sensors 1 | ||
| LTC2991 | RECOMMENDED FOR NEW DESIGNS | Octal I2C Voltage, Current, and Temperature Monitor |
Tools & Simulations
LTspice 1
Models for the following parts are available in LTspice:
- LTM4628
LTpowerCAD 2
- LTM4628 Project - Dual Step-Down DC/DC μModule Regulator (4.5-26.5V to 1.5V @ 8A & 1.2V @ 8A)
- LTM4628 Project - 2-phase, single 16A ref design
Design tools for the following parts are available in LTpowerCAD:
- LTM4628
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.
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.