TPS51427ARHBR Description
TPS51427ARHBR belongs to the family of dual synchronous step-down controllers, which is used as part of a low-cost suite of notebook power bus regulators. It enables system designs with minimal external component counts. It is specifically designed for notebook and mobile communications applications. Seamless operation between PWM mode under heavy load conditions or between PWM mode under heavy load conditions can be supported based on the fixed-frequency emulated adaptive on-time control which can reduce frequency operation at light loads for high-efficiency down to the milliampere range.
TPS51427ARHBR Features
Fixed 3.3-VREF output capable of sourcing 10 mA
Temperature-compensated low-side RDS(on) current sensing
Adaptive gate drivers with the integrated boost switch
Bootstrap charge auto-refresh
Integrated soft start, tracking soft stop
TPS51427ARHBR Applications
Notebook I/O and system bus rails
Graphics application
PDAs and mobile communication devices
