TI TPS54526PWP

TPS54526 is an adaptive on-time D-CAP2™ mode synchronous buck converter. It helps system designers complete power bus regulator sets for various end equipment with a cost-effective, low component count, low standby current solution. The main control loop uses D-CAP2™ mode control, achieving ultra-fast transient response without external compensation components. Adaptive on-time control enables seamless transition between PWM mode at higher load conditions and Eco-mode™ operation at light loads. Eco-mode™ allows the TPS54526 to maintain high efficiency under light load conditions. Proprietary circuitry also enables the device to be compatible with low ESR output capacitors such as POSCAP and SP-CAP, as well as ultra-low ESR ceramic capacitors. The operating input voltage ranges from 4.8V to 18V VIN. The output voltage can be set in the range of 0.76V to 5.5V. Additionally, the device supports adjustable soft-start time and power-good functionality. Available in a 14-pin HTSSOP package and a 16-pin QFN package, designed for an operating temperature range of -40°C to 85°C.

• D-CAP2™ mode for fast transient response, low output ripple, and ceramic output capacitor support
• Wide VIN input voltage range: 4.5V to 18V
• Output voltage range: 0.76V to 5.5V
• High-efficiency integrated FETs optimized for low duty cycle applications
• 63mΩ (high-side) and 33mΩ (low-side)
• High efficiency, shutdown quiescent current less than 10μA
• High initial bandgap reference accuracy
• Adjustable soft-start
• Pre-bias soft-start
• 650kHz switching frequency (fSW)
• Cycle-by-cycle overcurrent limiting
• Power good output
• Automatic skip Eco-mode™ for high efficiency at light loads

• Wide application in low-voltage systems
• Digital TV power supplies
• HD Blu-ray disc players
• Network home terminal equipment
• Digital set-top boxes (STB)