DC/DC controllers

TI's DC/DC controllers with external FETs and inductors deliver voltage regulation for high-power, thermally-challenging applications.

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Our DC/DC controllers support buck (step-down), boost (step-up) and buck-boost topologies. Paired with external FETs or power-stages, these controllers can offer flexible, high-efficiency, cost-effective and thermally robust DC/DC regulation for high-power applications and are backed by WEBENCH® design tools, reference designs and global supply chain reliability.

Browse by topology

Buck (step-down) DC/DC controllers

Drive external FETs or power-stages to step-down (buck) from a high input DC voltage to a regulated low-output DC voltage.

Boost (step-up), buck-boost & SEPIC controllers

Drive external FETs or power stages to step-up (boost)from a low input DC voltage to a regulated high output DC voltage, or, you can either step-down or step-up with a buck-boost controller.

Multiphase DC/DC controllers

Drive power stages in a multiphase configuration to step-down (buck) from a mid-input DC voltage to a regulated low-output DC voltage and supporting Intel SVID, AMD SVI3, AVSBus and PMBus protocols.

New products

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LM34938-Q1
NEW
DC/DC controllers
LM34938-Q1 PREVIEW

Automotive, 36V VIN four-switch buck-boost controller with I2C and 2.2MHz fsw for wireless charging

Approx. price (USD) 1ku | 2.537

LM25190-Q1
NEW
DC/DC controllers
LM25190-Q1 ACTIVE

Automotive, 42V synchronous buck controller with constant current and constant voltage regulations

Approx. price (USD) 1ku | 1.455

TPS537G4S
NEW
DC/DC controllers
TPS537G4S PREVIEW

16-phase, dual-output digital multiphase controller with PWMVID

LM25137F
NEW
DC/DC controllers
LM25137F ACTIVE

42V, 100% duty-cycle capable, dual-channel, functional safety synchronous buck controller

Approx. price (USD) 1ku | 1.529

LM51251A-Q1
NEW
DC/DC controllers
LM51251A-Q1 ACTIVE

Automotive, 42V VIN, 2.2MHz dual-phase boost controller with VOUT tracking and I2C

Approx. price (USD) 1ku | 2.478

LM51261A-Q1
NEW
DC/DC controllers
LM51261A-Q1 ACTIVE

Automotive, 42V VIN, 2.2MHz single-phase boost controller with VOUT tracking and I2C

Approx. price (USD) 1ku | 1.652

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Technical resources

Video
Video
Wide-input voltage DC/DC controller and converter
This course, focused on e-bikes, will introduce you to how TI's power management chip can be applied to e-bikes circuits design, and the benefits of using TI chips. 
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. 
Video
Video
Power Tips: Buck-Boost using a buck controller
In Power Tip #5 Robert Kollman talks about how to make a buck-boost using a buck controller.

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™ software tool of most commonly used switchmode power supplies

Power Stage Designer is a JAVA-based tool that helps speed up power-supply designs as it calculates voltages and currents of 21 topologies based on user inputs. Additionally, Power Stage Designer contains a Bode plotting tool and a helpful toolbox with various functions to make power supply design (...)

Reference designs related to DC/DC controllers

Use our reference design selection tool to find designs that best match your application and parameters.

View reference designs