DC/DC buck converters
Balance simplicity and flexibility with integrated-FET step-down voltage converters
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. Both non-synchronous (integrated high-side FET and external diode) and synchronous (integrated high-side and low-side FETs) buck converters simplify the design process by reducing external component count. At the same time, having control over the selection of an external inductor lets you optimize your power supply for efficiency, size or cost. No matter what your application is, we have the DC/DC buck voltage converter and corresponding design tools to help you address your power-supply design challenges.
Search DC/DC buck converters by nominal input voltage
DC/DC buck converter ICs intended to take input voltages from various battery chemistries, typically for portable personal electronics applications.
Step-down voltage converters for common 3.3-V and 5-V intermediate buses and input voltage rails for personal electronics and other low-power systems.
DC/DC buck converters targeting a nominal 24-V input, with maximum operating input voltages as high as 100 V to protect against voltage transients. Common application areas are broad industrial and automotive.
DC/DC step-down converters for nominal 48-V input voltage systems such as telecommunications infrastructure and the emerging HEV and EV automotive space.
Power management is at the center of enabling the continued integration of electronics in our lives. For decades, TI has been at the forefront of developing new process, packaging and circuit-design technologies to deliver the best power devices for your design. Check out our featured DC/DC step-down voltage converters below, designed to help you address a variety of challenges like EMI and power density.
Buck converters for 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. For more help with EMI mitigation, explore our EMI training hub.
Buck converters for power density
More power, less board space. This is the trend in applications across all markets as well as the TI step-down converter portfolio. Highlighted by SWIFT™ voltage regulators, these are highly integrated, featuring high performance and high output-current capability in compact, thermally-enhanced packaging.
High-density regulators 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.
Buck converters for 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.
Buck converters for low noise and 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.
Buck converters for wide VIN
Wide input voltage (VIN) products feature a maximum input voltage greater than 30 V and are typically deployed in nominal 12-V, 24-V and 48-V systems where high-input voltage transients are common. With their additional headroom, wide VIN voltage buck converters let you shrink or eliminate bulky and costly transient suppression circuitry. Explore the entire collection of wide VIN power-supply products, including DC/DC converters, controllers, modules and LDO regulators. Explore featured wide VIN buck converters below.
Buck converters for ease of use
Buck converters design resources
Quiescent current can be one of the most confusing specifications of a DC/DC converter. Learn the difference between various types of input current flowing into a buck (step-down) regulator.
Buck converter companion products