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

LTC1149 - High Efficiency Synchronous Step-Down Switching Regulators

Features

Typical Application

LTC1149 Typical Application
LTC1149 Typical Application

Description

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
LTC1149CN-3.3#PBF N-16 N C 05-08-1510 (N16) Yes
LTC1149CN-5#PBF N-16 N C 05-08-1510 (N16) Yes
LTC1149CN#PBF N-16 N C 05-08-1510 (N16) Yes
LTC1149CS-3.3#PBF SO-16 S C 05-08-1610 (S16) Yes
LTC1149CS-3.3#TRPBF SO-16 S C 05-08-1610 (S16) Yes
LTC1149CS-5#PBF SO-16 S C 05-08-1610 (S16) Yes
LTC1149CS-5#TRPBF SO-16 S C 05-08-1610 (S16) Yes
LTC1149CS#PBF SO-16 S C 05-08-1610 (S16) Yes
LTC1149CS#TRPBF SO-16 S C 05-08-1610 (S16) Yes


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
LTC1149CN-3.3#PBF N-16 C $6.40 $5.25 Yes
LTC1149CN-5#PBF N-16 C $6.40 $5.25 Yes
LTC1149CN#PBF N-16 C $6.40 $5.25 Yes
LTC1149CS-3.3#PBF SO-16 C $5.33 $4.65 Yes
LTC1149CS-3.3#TRPBF SO-16 C $4.71 Yes
LTC1149CS-5#PBF SO-16 C $5.33 $4.65 Yes
LTC1149CS-5#TRPBF SO-16 C $4.71 Yes
LTC1149CS#PBF SO-16 C $5.33 $4.65 Yes
LTC1149CS#TRPBF SO-16 C $4.71 Yes
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* 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
DC024A-A LTC1149CS | HIGH EFFICIENCY BUCK 5V/2A OUT (ADJUSTABLE) $100.00
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Click here to view our complete list of demo boards

Applications

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Design Tools

LTspice

LTspice® software is a powerful, fast and free simulation tool, schematic capture and waveform viewer with enhancements and models for improving the simulation of switching regulators. Click here to download LTspice

Models for the following parts are available in LTspice:
LTC1149
LTC1149-3.3
LTC1149-5

Technical Support