• Part: TPS54227
  • Description: 2-A Synchronous Step-Down Converter
  • Manufacturer: Texas Instruments
  • Size: 1.83 MB
Download TPS54227 Datasheet PDF
Texas Instruments
TPS54227
Features - 1 D-CAP2™ Mode Enables Fast Transient Response - Low Output Ripple and Allows Ceramic Output Capacitor - Wide VIN Input Voltage Range: 4.5 V to 18 V - Output Voltage Range: 0.76 V to 7 V - Highly-Efficient Integrated FETs Optimized for Lower Duty Cycle Applications - 155 mΩ (High-Side) and 108 mΩ (Low-Side) - High Efficiency, Less Than 10 μA at Shutdown - High Initial Bandgap Reference Accuracy - Adjustable Soft-Start - Prebiased Soft-Start - 700-k Hz Switching Frequency (f SW) - Cycle-By-Cycle Overcurrent Limit 3 Description The TPS54227 device is an adaptive ON-time DCAP2 mode synchronous buck converter. The TPS54227 enables system designers to plete the bus regulators for a suite of various end equipment with a cost-effective, low ponent count, low standby current solution. The main control loop for the TPS54227 uses the D-CAP2 mode control which provides a fast transient response with no external pensation ponents. The TPS54227 also has a proprietary circuit that enables...