Buck converters (integrated switch)

Balance simplicity and flexibility with integrated-FET step-down voltage converters

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Because DC/DC step-down (buck) converters feature a controller with one or more integrated FETs and an external inductor, they offer a balance of flexibility and ease of use. Browse our comprehensive portfolio of DC/DC buck converters and leverage corresponding design tools to address power-supply design challenges for any application.

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Select by nominal input voltage


Buck converters intended to take input voltages from various battery chemistries, typically for portable personal electronics applications.

< 6 V

Buck converters for common 3.3-V and 5-V intermediate buses and input voltage rails for personal electronics and other low-power systems.

12 V

Buck converters for common 12-V input applications such as communications infrastructure, enterprise computing or 12-V automotive systems.

24 V

Buck converters for a nominal 24-V input, with maximum operating input voltages as high as 100 V to protect against voltage transients. Common application areas are industrial and automotive.

48 V

Buck converters for nominal 48-V input voltage systems such as telecommunications infrastructure and the emerging HEV and EV automotive space.

TPS563252 NEW

3-V to 16-V input voltage, 3-A, 1.4-Mhz synchronous buck converter in SOT563

Approx. price (USD) 1ku | 0.35
TPS563257 NEW

3-V to 16-V input voltage, 3-A, 1.4-Mhz synchronous buck converter in SOT563

Approx. price (USD) 1ku | 0.35
TPS62873-Q1 NEW

Automotive 2.7-V to 6-V input, 15-A, stackable, synchronous buck converter

Approx. price (USD) 1ku | 1.852

4-V to 16-V, 35-A SVID and I²C synchronous step-down converter

Approx. price (USD) 1ku | 4.15
LM5169-Q1 NEW

Automotive 6-V to 120-V Wide VIN, 650-mA DC-DC converter with Fly-Buck™ capability

Approx. price (USD) 1ku | 1.764
LM5168-Q1 NEW

Automotive 6-V to 120-V Wide VIN, 300-mA DC-DC converter with Fly-Buck™ capability

Approx. price (USD) 1ku | 1.25

Power trends

Technical resources

Selection guide
Selection guide
Buck Converter Quick Reference Guide (Rev. B)
Covering devices with input voltage up to 100 V and output current up to 40 A, this quick reference guide highlights our most popular buck converters across a wide variety of applications.
document-pdfAcrobat PDF
Video series
Video series
Power fundamentals - buck regulator architectures
This series provides an overview of buck regulator architectures, including: multiphase, hysteretic, COT, current or emulated current mode, and voltage mode. 
Selection guide
Selection guide
SWIFT DC/DC Converters Selector Guide (Rev. G)
Low on-resistance integrated MOSFETs, tight output voltage regulation accuracy, and an advanced feature-set allow SWIFT™ step-down converters to power the most advanced DSPs and FPGAs in the industry.
document-pdfAcrobat PDF

Design & development resources

Design tool
WEBENCH® Power Designer
WEBENCH® Power Designer creates customized power-supply circuits based on your requirements. The environment gives you end-to-end power-supply design capabilities that save you time during all phases of the design process.
Simulation tool
PSpice® for TI design and simulation tool
PSpice® for TI is a design and simulation environment that helps evaluate functionality of analog circuits. This full-featured, design and simulation suite uses an analog analysis engine from Cadence®. Available at no cost, PSpice for TI includes one of the largest model libraries in the (...)
Design tool
Power Stage Designer™ Tool of Most Commonly Used Switch-mode Power Supplies
Power Stage DesignerTM is a JAVA-based tool (requires JAVA 8 or OpenJDK 8) that helps engineers accelerate their power-supply designs by calculating voltages and currents of 20 topologies according to the user’s inputs. Additionally, Power Stage Designer contains a Bode plotting tool and a (...)

Reference designs related to Buck converters (integrated switch)

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