Buck converters (integrated switch)
Balance simplicity and flexibility with integrated-FET step-down voltage converters
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Select by nominal input voltage
Battery
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.
New products
2.25-V to 5.5-V, 2-A step-down converter with 1% accuracy in small QFN and SOT583 packages
Approx. price (USD) 1ku | 0.45
2.25-V to 5.5-V, 1-A step-down converter with 1% accuracy in small QFN and SOT583 packages
Approx. price (USD) 1ku | 0.39
2.25-V to 5.5-V, 4-A step-down converter with 1% accuracy in small QFN and SOT583 packages
Approx. price (USD) 1ku | 0.66
3-V to 65-V, 50-mA ultra-small synchronous buck converter with 6 μA IQ
Approx. price (USD) 1ku | 1.1
6-V, 9-A stackable synchronous buck converter with frequency synchronization option
Approx. price (USD) 1ku | 1.367
Automotive grade 80V input 2.5A synchronous step-down (buck) DC/DC converter with spread spectrum
Approx. price (USD) 1ku | 1.35
Power trends
Power density
More power, less board space. This is the trend in applications across all markets as well as our step-down converter portfolio. High-density buck converters are a great choice for powering high-current digital loads like FPGAs and processors. Use our processor-attach tool to find the best products to complement your FPGA or processor.
Understanding Flip Chip QFN (HotRod) and Standard QFN Performance Differences
Managing DC/DC thermals in high-current, high-ambient temperature applications
Which pinout is best? How individual, multifunctional and trimmed pinouts address design challenges.
Featured products for power density
Low EMI
Mitigating buck converter EMI can be a major challenge for many power supply designers. Devices with built-in EMI reduction technologies reduce design time while helping with compliance to difficult standards such as CISPR 25 Class-5. Take a look below for some of our latest and best step-down converters for EMI performance.
How device-level features and package options can help minimize EMI in automotive designs
Leverage TI’s online toolbox to tackle EMI before touching a soldering iron
Reduce buck-converter EMI and voltage stress by minimizing inductive parasitics
Featured products for low EMI
Low quiescent current (IQ)
DC/DC buck switching 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 products in our buck converter portfolio below including the TPS62x family of low-power converters with DCS control technology and the world's lowest IQ switching regulator, the TPS62840.
Quiescent current parameters
Understanding Mode Transitions for LMR33620/30 and LMR36006/15
Understanding Quiescent Current Specifications
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.
Minimize noise and ripple with a low-noise buck converter
Powering the AFE7920 with the TPS62913 Low-Ripple and Low-Noise Buck Converter (Rev. A)
Reducing noise on the output of a switching regulator
Technical resources
Buck Converter Quick Reference Guide (Rev. B)
Power fundamentals - buck regulator architectures
SWIFT DC/DC Converters Selector Guide (Rev. G)
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 (...)