Power Management Switching Regulator Step-Down (Buck) Regulators Internal Power Switch Buck

LTC3610 - 24V, 12A Monolithic Synchronous Step-Down DC/DC Converter

LTC3613 - 24V, 15A Monolithic Step Down Regulator with Differential Output Sensing

LTC2975 - 4-Channel PMBus Power System Manager Featuring Accurate Input Current and Energy Measurement

LTC7130 - 20V 20A Monolithic Buck Converter with Ultralow DCR Sensing

Features

  • Wide VIN Range: 4.5V to 20V
  • Optimized for Low Duty Cycle Applications
  • High Efficiency: Up to 95%
  • LTC Proprietary Current Mode Architecture
  • High Current Parallel Operation
  • Ultralow DCR Current Sensing with Temperature Compensation
  • Programmable Output Current Limit
  • High Speed Differential Remote Sense Amplifier
  • ±0.5% Output Voltage Regulation Accuracy
  • Output Short-Circuit Protection with Soft Recovery
  • Programmable Soft-Start, Tracking
  • Programmable Fixed Frequency: 250kHz to 770kHz
  • EXTVCC for Reduced Power Dissipation
  • Fault Indicator for Output UV/OV Conditions
  • 6.25mm × 7.5mm × 2.22mm BGA Package

Typical Application

LTC7130 Typical Application
LTC7130 Typical Application

Description

The LTC®7130 is a current mode synchronous step-down monolithic converter that can deliver up to 20A continuous load current. It employs a unique architecture which enhances the signal-to-noise ratio of the current sense signal, allowing the use of a very low DC resistance power inductor to maximize efficiency in high current applications. This feature also reduces the switching jitter commonly found in low DCR applications. The LTC7130 also includes a high speed differential remote sense amplifier and a programmable current sense limit that can be selected from 10mV to 30mV to set the output current limit up to 20A. In addition, the DCR temperature compensation feature limits the maximum output current precisely over temperature.

The LTC7130 also features a precise 0.6V reference with a guaranteed limit of ±0.5% that provides an accurate output voltage. A 5V to 20V input voltage range supports a wide variety of bus voltages and various types of batteries.

The LTC7130 is offered in a compact and low profile BGA package available with SnPb/RoHS compliant terminal finishes.

Packaging

CAD Symbols and Footprints: The downloadable Zip file below contains the schematic symbol and PCB footprints.

For complete and up to date package information and drawings, please refer to our packaging page

Part Number Package Code Temp Package
Drawing		 RoHS
LTC7130EY#PBF 7.5mm × 6.25mm × 2.22mm BGA BGA E 05-08-1988 Yes
LTC7130IY#PBF 7.5mm × 6.25mm × 2.22mm BGA BGA I 05-08-1988 Yes


LTC7130 Package Drawing

Order Info

  • Part numbers ending in PBF are lead free. Solder plated terminal finish (SnPb) versions are non-standard and special terms and conditions and pricing applies if available. Please contact LTC marketing for information.
  • Part numbers containing TR or TRM are shipped in tape and reel or 500 unit mini tape and reel, respectively
  • Please refer to our general ordering information or the product datasheet for more details

Package Variations and Pricing

Part Number Package Temp Price
(1-99)		 Price
(1k)*		 RoHS
LTC7130EY#PBF 7.5mm × 6.25mm × 2.22mm BGA E $11.36 $7.95 Yes
LTC7130IY#PBF 7.5mm × 6.25mm × 2.22mm BGA I $12.93 $9.05 Yes
Buy Now • Request Samples
* 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 Linear Technology sales office or authorized distributor.

Demo Boards

Linear Technology offers many demo boards free of charge to qualified customers. Contact your local sales office or distributor to inquire about a demo board. Certain demo boards are also available for sale via credit card on this website. Demo boards are for evaluation purposes only. It remains the customer’s responsibility to verify proper and reliable operation in the actual end application.

Part Number Description Price Documentation
DC2341A LTC7130EY Demo Board | Monolithic 20A Buck with mΩ DCR Sensing; 4.5V ≤ VIN ≤ 20V, Vout = 1.5V @ 20A Contact Factory
Buy Now
Click here to view our complete list of demo boards

Applications

  • DSP, FPGA, ASIC Reference Designs
  • Telecom/Datacom Systems
  • Distributed High Power Density Systems

People Who Viewed This Product Also Viewed

Product Notifications

Please login to your MyLinear account for notifications of datasheet updates, new document releases and LTspice model announcements for your favorite products. If you do not have a MyLinear account you may Sign Up Now.

Forgot your password? Click here.
Need help? Email mylinear@linear.com with questions and comments.

Design Tools

LTpowerCAD

The LTpowerCAD design tool is a complete power supply design tool program that can significantly ease the tasks of power supply design. It guides users to a solution, selects power stage components, provides detailed power efficiency, shows quick loop bode plot stability and load transient analysis, and can export a final design to LTspice for simulation. Click here to download LTpowerCAD

To open the project file for this circuit:

  • Step 1: If you have not installed LTpowerCAD on this computer, download and install LTpowerCAD
  • Step 2: Once LTpowerCAD is installed, click on the link(s) below to open the project file
  • Step 3: If LTpowerCAD does not automatically open after clicking the link above, you can open the project file by right clicking on the link and selecting "Save Target As." After saving the file to your computer, start LTpowerCAD and open the project file by selecting 'Open Project' from the 'File' menu

Design tools for the following parts are available in LTpowerCAD:
LTC7130

Technical Support