Step-down (buck) regulators
Efficient conversion of an input voltage to a lower output voltage
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New products
36V, 3A synchronous step-down converter with 1.5uA IQ and low EMI
Approx. price (USD) 1ku | 1.23
2.25-V to 5.5-V, 2-A high-efficiency step-down power module with integrated inductor
Approx. price (USD) 1ku | 1.05
Dual-channel, 8-phase step-down digital multiphase D-CAP+™ controller with VR14 SVID and PMBus
Approx. price (USD) 1ku | 3.05
36V, 2A synchronous step-down converter with 1.5uA IQ and low EMI
Approx. price (USD) 1ku | 1.2
4V to 18V input, 3A synchronous SWIFT™ step-down power module with extended temperature
Approx. price (USD) 1ku | 3.6
Dual-channel, 12-phase step-down digital multiphase D-CAP+™ controller with VR14 SVID and PMBus
Approx. price (USD) 1ku | 4.26
Power trends
Power density
More power, less board space. This is the trend in applications across all markets as well as the our step-down regulator portfolio. Highlighted by the SWIFT™ buck regulator family, our portfolio of high-power density devices are highly integrated, with high performance feature sets and high output-current capability in compact, thermally-enhanced packaging.
High-density power modules are a great choice for powering high-current digital loads like FPGAs and processors. Use our processor-attach tool to find the best power supply devices to surround your FPGA or processor.
Enabling Small, Cool and Quiet Power Modules with Enhanced HotRod™ QFN Packaging
Thermal Comparison of a DC-DC Converter in SOT23 and the New SOT563 (Rev. A)
Leverage TI’s online toolbox to tackle thermals before touching a soldering iron
Low EMI
Mitigating buck regulator EMI can be a major challenge for many power-supply designers. Devices with built-in EMI-reduction technologies save design time while helping you comply with difficult standards such as CISPR 25 Class-5. Check out our featured step-down regulators for EMI performance.
Reducing filter size and cost with an active EMI filter
Simplify low EMI design with power modules
Leverage TI’s online toolbox to tackle EMI before touching a soldering iron
Featured products for low EMI
Low quiescent current (IQ)
DC/DC step-down regulators with ultra-low standby quiescent current increase light-load efficiency and extend battery life in portable and battery-operated applications. Find some of the lowest IQ devices in our buck regulator portfolio below.
IQ: What it is, what it isn’t, and how to use it
IQ (quiescent current) and light-load efficiency
Demystifying Input Supply Current in DC/DC Regulators:From Shutdown to Full Load (Rev. A)
Featured products for low quiescent current (IQ)
Low noise & precision
Typical switching regulators require a post-regulator LDO to power high-resolution ADCs and AFEs. But with the industry's best noise and ripple performance, TPS62912 and TPS62913 allow you to remove that low-noise LDO in most applications, saving PCB area and overall cost while improving system efficiency.
Achieve low noise and low output ripple with a high-efficiency DC/DC converter
Powering Sensitive Noise ADC Designs with the TPS62913 Low-Noise Buck Converter
Understanding and managing buck regulator output ripple
Discover featured applications
Design high-performance, cost-effective factory automation systems with TI buck coverters and modules
Our power-dense buck regulators meet electromagnetic interference limits to help lower system costs while maintaining high performance for factory automation applications.
- Easy-to-use buck regulators with a wide input voltage range to handle transients.
- Great efficiency and thermal performance across specified load ranges.
- Buck modules include integrated inductors allowing for smaller solution size and lower bill-of-materials count.
Featured resources
- TIDA-010048 – Channel-to-channel isolated analog input module reference design
- PMP15039 – Two-Stage Power Supply Reference Design for Field Transmitters
- PMP15040 – Wide Vin Power Supply Reference Design for Space-Constrained Industrial Sensors
Meet system power requirements of HEVs and EVs with TI buck regulators
Design engineers have many considerations to overcome while managing strict cost and board space targets. We designed and developed our power devices with these challenges in mind.
- High operating temperature range.
- Supports strict electromagnetic compatibility standards such as Comité International Spécial des Perturbations Radioélectriques Class 5.
- Wide input-voltage capability to manage large-input transient conditions.
- Availability in both leaded and nonleaded packages.
Featured resources
- TPSF12C3 – Common-mode active EMI filter (AEF) for three-phase systems
- LMR38020-Q1 – Automotive SIMPLE SWITCHER® power converter 4.2-V to 80-V, 2-A, synchronous buck converter
- LM5180-Q1 – Automotive 65-VIN no-opto flyback converter with 100-V, 1.5-A integrated MOSFET
- LMR38020QEVM – LMR38020-Q1 evaluation module SIMPLE SWITCHER® power converter 80-V, 2-A, synchronous buck, 40-µA IQ
Expand functionality in automotive infotainment and cluster systems with TI buck converters and controllers
Today's automotive infotainment and cluster systems inform, entertain, and connect modern drivers. As we look to the future, the amount of functionality within these systems is only expected to increase. This means more processing power within the same physical space. In order to power these next-generation systems, power converters need to excel in two key aspects.
- High output power-to-package size ratio without overheating.
- Minimized conducted and radiated electromagnetic interference.
Featured resources
- LM61495-Q1 – 10-A automotive buck converter optimized for power density and low EMI
- TPS62813-Q1 – Automotive 2.75-V to 6-V, 3-A step-down converter with fixed Fsw and SYNC in 2x3mm wettable-flanks
- TPS62873-Q1 – Automotive 2.7-V to 6-V input, 15-A, stackable, synchronous buck converter
- Understanding the trade-offs and technologies to increase power density (Rev. C) – White paper
- Advanced Power-Converter Features for Reducing EMI – More literature
Our DC/DC converters and power modules address your power-density and thermal design challenges for enterprise applications
Data centers are crucial for business continuity and reliable communications. Our power-management solutions enable high availability and efficiency when powering high-performance processors while providing regulated power.
- High efficiency, excellent thermal performance and PMBus with telemetry keep data centers cooler while saving energy.
- Fast transient response for reducing output filter size.
- High output-voltage accuracy to power the latest advanced processors.
Featured resources
- TPS546D24AEVM – Fixed frequency synchronous buck converter 2-phase evaluation module
- TPS54KB20EVM – TPS54KB20 step-down converter evaluation module
- TPS54J061EVM – 2.7-V to 16-V, 6-A, step-down converter evaluation board
- Point-of-Load Solutions for Network Interface Cards (NIC) – Application note
- Point-of-Load Designs in Data Center Apps for Intel Xeon Sapphire Rapids Scalabl (Rev. B) – Application note
- WEBENCH-CIRCUIT-DESIGNER – Create customized power supply and active filter circuits
- PSPICE-FOR-TI – PSpice® for TI design and simulation tool
- FUSION_DIGITAL_POWER_DESIGNER – Digital Power Software
Design & development resources
WEBENCH® Power Designer
PSpice® for TI design and simulation 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 (...)