AC/DC controllers
Accelerate your development of AC/DC switching power with proven high performance controller solutions
Browse by power stage and topology
Power factor correction (PFC) stage
Maximize power factor while minimzing total harmoic distortion and easing compliance with international standards. Active PFC is typically used in AC/DC converters delivering >75W output power.
DC/DC stage
Optimize your design against the levels of power level, size, cost, and performance. Isolated DC/DC transfers power from a high-voltage DC bus to a low-voltage DC load.
Secondary stage
Select from our synchronous rectifiers for maximizing full load efficiency, load share controllers for current sharing between converters, or wake-up ICs for minimizing output capacitance.
PFC and DC/DC combination
Select from product families that integrate the PFC and DC/DC controller into one package, enabling low BOM count and minimizing converter footprint.
DC/DC stage - PWM
Browse our PWM controllers enable designs with maximum flexibility. By offering pin-for-pin combatibility, this family is optimized for supply chain diversification.
Related categories
Shunt voltage references
Low IQ and high precision for your power and signal chain applications
New products
Radiation-hardened QMLP, 50% duty cycle PWM controller for driving MOSFETs
Radiation-tolerant 50% duty cycle PWM controller for driving MOSFETs
Radiation-hardened QMLP, 100% duty cycle PWM controller for driving MOSFETs
Radiation-hardened QMLP, 50% duty cycle PWM controller for driving MOSFETs or GaN FETs
Radiation-tolerant 100% duty cycle PWM controller for driving MOSFETs
Radiation-tolerant, 50% duty cycle PWM controller for driving MOSFETs or GaN FETs
Why choose TI's AC/DC controllers?
High-efficiency conversion
Optimized controllers for every switching topology to push higher efficiency across wide input ranges, reducing heat, enabling compact designs.
Integrated protection and gate drivers
Built-in gate drives, over-voltage, over-current, thermal-shutdown, and soft-start across our portfolio protect both system and end-user while reducing BOM and improving reliability.
Dedicated topology and customer support
Each controller is tuned for specific topologies, delivering optimal performance across power levels. TI works directly with customers to tailor designs to required specifications.
Technical resources
High Efficiency by Leveraging GaN FET in an LLC Resonant Converter Design
Choosing the right PFC topology: 100W to several kW
Flyback Aux Winding OVP and UVLO Fault Sensing Design and Troubleshooting Tips
Discover featured applications
Energy-efficient controllers powering next-generation appliances
Design flexible, robust power supplies for power tools, robots, air conditioners, appliances and more. Implement safe battery chargers and home appliance SMPS, regardless of battery pack voltage range specification, with our isolated DC/DC controllers that support wide input or wide output designs, minimizing complexity.
Benefits:
- Maximize charging performance with constant current and constant voltage support.
- Implement higher power density with integrated features and support for GaN.
- Comply with standby power regulations with variable switching frequency control.
Featured resources
- UCC28750EVM-071 – UCC28750 evaluation module for current-mode flyback controller
- UCC25661EVM-128 – UCC25661 evaluation module
- Retrofit UCC28750 EVM to Support Aux Power Application – Application note
Ultra-Efficient, Flexible Controllers Enabling Thin Profile Display and Audio Power
Design highly efficient power conversion stages in SMPS through soft-switching topologies with our comprehensive AC/DC controller lineup. Address challenges faced by leading customers by enabling slimmer form factors while maintaining green efficiency standards. Reduce overall system costs by integrating multiple features into a single device.
Benefits:
- Higher integration between power stages and improved power density.
- Increased overall efficiency across the full line and load range.
- Reduced external cirtuity requirements with integrated protection features within the device.
Featured resources
- UCC25661EVM-128 – UCC25661 evaluation module
- UCC28056 System Bring Up Guidelines and Application Debug FAQ – Application note
Enabling higher power density with AC/DC controllers for power delivery
Increase power density by shrinking magnetics while maintaining efficiency across industrial and consumer power delivery applications. Pair AC/DC controllers with our GaN products, to reduce external circuitry by integrating more features.
Benefits:
- Integrated protection feature set reduces external circuitry requirements, and enables smaller form factors.
- Superior dynamic response across load ranges with fast startup times.
- Minimal output ripple across full load and line ranges.
Featured resources
- TIDA-050074 – 140-W GaN-based USB PD3.1 USB-C® adapter reference design
- UCC24612-1EVM – Secondary-side synchronous rectifier controller diode-replacement demonstration board
- Design Considerations With Dual-Channel SR Controller UCC24624 – Application note
Maximize vehicle isolated power converters for density and efficiency
Design reliable isolated DC/DC power supplies for EV inverters, OBC, BMS across vehicle types. Support wide input voltage ranges and low operating or quiescent current requirements for systems connected directly to high-voltage or low-voltage batteries.
Benefits:
- Soft-switching control algorithms deliver highest average efficiency across load ranges and improved EMC performance.
- Integrated high-voltage startup minimizes BOM requirements for inverter redundant power supplies.
- Higher power density through integrated features and support for GaN power stages
Featured resources
- UCC28731-Q1 – Automotive, Zero-power standby PSR flyback controller
- UCC25661-Q1 – Automotive, high density, Wide VIN and VOUT LLC controller with IPPC
- UCC28781EVM-053 – UCC28781-Q1 evaluation module for automotive 500-Vdc input ZVS-flyback power supply applications
Power supply controllers optimized for simplifying design
Provide isolated power from photovoltaic panels and battery cells, or the AC grid, regardless of architecture or input voltage range. From relays, meters, panels, energy storage, solar, and EV charging, optimize your auxiliary or redundant power supply designs for simplicity
Benefits:
- Leverage general-purpose PWM controllers to quickly update designs for new specifications or different topologies.
- Maximize power density with flyback or LLC controllers that integrate many features to reduce BOM, especially in applications exposed to harsh conditions.
Featured resources
- Considerations for auxiliary flyback power supplies (Rev. A) – Technical article
AC/DC controllers with low standby power for building automation
TI's AC/DC controllers are well suited for building automation with low ripple and good thermal performance. Design your l ighting solutions with best regulation across the line and load. Auxillary power supply solutions from TI enable better efficiency with high integration with the power stage
Benfits:
- Integrated protection features - reduced external circuitry
- Better transient response - fast startup time
- Slimmer form factors and better overall magnetics
Featured resources
- UCC28064EVM-004 – 300W interleaved PFC pre-regulator evaluation module
Design & development resources
UCC28C56H-Q1 evaluation module for primary-side controlled (with AUX winding) flyback regulator
The UCC28C56EVM-066 is a highly efficient primary-side controlled (with AUX winding) flyback auxiliary power supply for EV and HEV automotive power trains. The design provides 15.2-VTYP, 40-W output for 800-V battery systems. It will deliver 40 W over the input voltage range from 125 V to 1000 V. (...)
Universal input, 430W power tool charger reference design
WEBENCH® Power Designer
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 (...)