LT8625S
Info : RECOMMENDED FOR NEW DESIGNS
searchIcon
cartIcon

LT8625S

18V/8A Step-Down Silent Switcher 3 with Ultralow Noise Reference

Show More showmore-icon

Info : RECOMMENDED FOR NEW DESIGNS tooltip
Info : RECOMMENDED FOR NEW DESIGNS tooltip
Viewing: Part Details
arrow-icon

Not the part you were looking for?

viewall Go to Product Selection Table
file View Data Sheet (Rev.B)
Documentation View All Documentation
Part Models 2
1ku List Price Starting From $4.07
Features
  • Silent Switcher® 3 Architecture
    • Ultralow RMS Noise (10Hz to 100kHz): 4μVRMS
    • Ultralow Spot Noise: 4nV/√Hz at 10kHz
    • Ultralow EMI Emissions on Any PCB
    • Internal Bypass Capacitors Reduce Radiated EMI
  • High Efficiency at High Frequency
  • Ultrafast Transient Response: 1μs
  • Fast Minimum Switch On-Time: 15ns
  • Input Voltage Range: 2.7V to 18V
  • Output Voltage Range: 0V to (PVIN − 0.5V)
  • 8A Maximum Continuous Output Current
  • Precision Reference: ±0.8% Over
    Temperature with Remote Sense
  • Supports Dynamic Output Voltage Control
  • PolyPhase® Operation: Up to 12 Phases
  • Forced Continuous Mode Capability
  • Adjustable and Synchronizable: 300kHz to 4MHz
  • Programmable Power Good
  • Small 20-Lead 4mm × 3mm LQFN Package
Additional Details
show more Icon

The LT8625S synchronous step-down regulator features third-generation Silent Switcher technology which is uniquely designed to combine an ultralow noise reference with Silent Switcher architecture in order to achieve both high efficiency and excellent wideband noise performance.

The innovative ultralow noise architecture provides exceptional low frequency (0.1Hz to 100kHz) output noise performance in a switching regulator. The output voltage can be programmed with a single resistor, resulting in virtually constant output noise independent of output voltage.

Silent Switcher architecture minimizes EMI emissions while delivering high efficiency at high switching frequencies.

The LT8625S is ideal for high current, noise sensitive applications which benefit from the high efficiency of a synchronous switching regulator.

Applications

  • RF Power Suppliers: PLLs, VCOs, Mixers, LNAs, PAs
  • High Speed/High Precision ADCs/DACs
  • Low Noise Instrumentation
Show More Arrow image
file View Data Sheet (Rev.B)
Documentation View All Documentation
Part Models 2
1ku List Price Starting From $4.07
modal bookmark icon

{{modalTitle}}

modal close icon

{{modalDescription}}

{{dropdownTitle}}

input down arrow
  • {{defaultSelectedText}}
    • {{#each projectNames}}
  • {{name}}
    • {{/each}} {{#if newProjectText}}
  • plus icon {{newProjectText}}
    • {{/if}}
{{#if toggleButtonDescription}}
{{toggleButtonDescription}}
{{/if}} {{#if newProjectTitle}}

{{newProjectTitle}}

{{projectNameErrorText}}

{{/if}}

LT8625S

Documentation

7
overlayclose

Filters

1 Applied

mobileoverlaydownarrow
  • All
    TickIcon
  • Data Sheet
  • Informational
  • Technical Articles
  • All
    TickIcon
  • English
  • Japanese
resetfilter

Reset Filters

Data Sheet

1

PDF Vector

PDF

UPDATED 04/20/2023
English

LT8625S: 18V/8A Step-Down Silent Switcher 3 with Ultralow Noise Reference Data Sheet (Rev.B)

Open PDF File

redirect
4.82 M
download

Download PDF

Informational

1

PDF Vector

URL

UPDATED 03/12/2019
English
Silent Switcher® Technology redirect icon

Technical Articles

5

PDF Vector

HTML

UPDATED 07/30/2024
English
Fast-Transient Negative Voltage Rail for Noise-Sensitive Applications redirect icon

PDF Vector

HTML

UPDATED 07/30/2024
Japanese
負電圧を必要とするアプリケーションに最適な反転昇降圧コンバータ、高速な遷移と優れたノイズ性能を実現 redirect icon

PDF Vector

HTML

UPDATED 06/03/2024
English
Benefits of Ultralow Noise Switching Regulator in Noise-Sensitive RF Applications redirect icon

PDF Vector

HTML

UPDATED 06/03/2024
Japanese
ノイズに敏感なRFアプリケーションにおける超低ノイズ・スイッチング・レギュレータの利点 redirect icon

PDF Vector

HTML

UPDATED 04/09/2023
Japanese
さらなるノイズ低減を実現したSilent Switcher® 3 redirect icon

There are no results matching this criteria. Try resetting your filters or searching for a different term

close icon

Documentation

Solutions Bulletin & Brochure 1

Silent Switcher Technology

Book & eBook 1

Understanding Silent Switcher Technology: High Efficiency, Low EMI eBook

Analog Dialogue 3

Revolutionizing Wireless Coverage: The Power of Cellular DAS Integrated Solutions
Low Noise Silent Switcher μModule and LDO Regulators Improve Ultrasound Noise and Image Quality
How to Achieve Ultrafast Power Supply Transient Response for RF Applications

Webcast 2

How to Design Low Noise Power Supplies Webinar (EngineerZone)
Improving Switch-Mode Power Supplies Using Noise Cancelling Technology

Video

1

Thumbnail Image

Video

2024-06-18

00:10

Silent Switcher 3 Technology

Learn More
Show More Arrow image

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
LT8625SIV#TRMPBF 20-Lead LQFN (4mm x 3mm x 0.94mm) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link
LT8625SIV#TRPBF 20-Lead LQFN (4mm x 3mm x 0.94mm) external-link
  • HTML
  • Material Declaration external-link
  • HTML
  • Reliablity Data external-link

Software & Part Ecosystem

Evaluation Kits 1

reference details image

DC3219A

LT8625S | 18V, 8A Synchronous Step-Down Silent Switcher with Low Noise Reference

zoom

DC3219A

LT8625S | 18V, 8A Synchronous Step-Down Silent Switcher with Low Noise Reference

download icon

Download

 print icon

Print
DC3219A
LT8625S | 18V, 8A Synchronous Step-Down Silent Switcher with Low Noise Reference
Buy Now View Details

Product Detail

Demonstration circuit 3219A is a 18V, 8A synchronous step-down Silent Switcher 3 with ultralow noise, high efficiency and power density featuring the LT8625S. The input voltage range of DC3219A is 2.7V to 18V. The default demo board setting is 1.0V at 8A maximum DC output current. The LT8625S is a compact, ultralow noise, ultralow emission, high efficiency and high speed synchronous monolithic step-down switching regulator. The uniquely designed combination of the ultralow noise reference and the third-generation Silent Switcher architecture enables the LT8625S to achieve both high efficiency and excellent wideband noise performance. Minimum on-time of 15ns allows high VIN to low VOUT conversion at high frequency.

Resources

pdf icon

PDF

DC3219A - Demo Manual (Rev.A) Download

596.4 K

pdf icon

ZIP

DC3219A Design Files Download

2.09 M

Show More Arrow image

Evaluation Kits1

evaluation kit item images

DC3219A

LT8625S | 18V, 8A Synchronous Step-Down Silent Switcher with Low Noise Reference

Tools & Simulations 1

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.

Reference Designs 1

Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) Power Tree

Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic)

Altera FPGA

zoomopens a dialog

Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic)

Altera FPGA

download icon

Download

 print icon

Print
Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic)

Circuits from the lab

tooltip Info:Circuits from the lab
Altera FPGA

Features and Benefits

  • Intel Agilex 7 F-Series devices target a wide range of applications across many markets. This series offers transceiver rates up to 58 Gbps, advanced DSP blocks supporting multiple precisions of fixed-point and floating-point operations, and high-performance crypto blocks.
  • Analog Devices has worked closely with FPGA and processor manufacturers to develop verified power solutions that optimize cost, size and efficiency in high performance applications.
  • Our reference designs are supported by an intuitive design tool set and IP.
  • ADI provides supporting documentation including LTpowerPlanner and applicable LTpowerPlay configuration files to enable you to validate the power solution for your application seamlessly. Our team can provide samples and/or evaluation boards for quick validation that can speed time to market in the most complex applications.
  • For a complete list power designs and use cases, please contact your local FAE.
View Detailed Reference Design external link

Part Used 9

LTC3888-1 reference design link

LTC7051 reference design link

LT8625S reference design link

LT8624S reference design link

LT8622S reference design link

ADP121 reference design link

LTC4365 reference design link

MAX77542 reference design link

LTC7151S reference design link

Reference Designs1

Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic) Power Tree

Intel Agilex 7 FPGA F-series Development Kit (Alternative Monolithic)

Altera FPGA

Recently Viewed

Part Details
Documentation
Evaluation Kit
Tools & Simulations
Reference Designs
Latest Discussions